# How Do MiFID II Regulations Impact RFQ and IOI Audit Trail Requirements? ▴ Question

**Published:** 2025-08-02
**Categories:** Question

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## Concept

The Markets in Financial Instruments Directive II ([MiFID II](https://prime.greeks.live/area/mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite)) represents a fundamental re-architecting of the European financial markets’ data and transparency infrastructure. For protocols like the Request for Quote (RFQ) and the Indication of Interest ([IOI](https://prime.greeks.live/area/ioi/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite)), the regulation moved them from being primarily bilateral communication tools to becoming fully integrated, auditable components of a firm’s execution and compliance framework. The core operational challenge presented by MiFID II is the systemic capture, storage, and reconstruction of all events and communications that could be construed as contributing to a transaction. This transforms the nature of RFQ and IOI processes, embedding a new layer of data-centric accountability into what were often more informal, voice-driven workflows.

From a systems perspective, MiFID II mandates that every [RFQ](https://prime.greeks.live/area/rfq/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) and certain types of IOIs leave an immutable, time-stamped digital footprint. This requirement is designed to ensure that regulators can reconstruct the entire lifecycle of a trade, from initial inquiry to final execution, to verify [best execution](https://prime.greeks.live/area/best-execution/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) and monitor for market abuse. The directive effectively imposes a state machine model on these trading protocols, where each state transition ▴ from a client’s initial IOI to a dealer’s response to an RFQ to the final trade confirmation ▴ must be logged with granular detail. This includes not just the explicit quotes and orders, but also the surrounding metadata, such as the identities of the individuals and algorithms involved, the precise timing of each communication, and the rationale for execution decisions.

![A central, metallic cross-shaped RFQ protocol engine orchestrates principal liquidity aggregation between two distinct institutional liquidity pools. Its intricate design suggests high-fidelity execution and atomic settlement within digital asset options trading, forming a core Crypto Derivatives OS for algorithmic price discovery](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-architecture-optimizing-liquidity-aggregation-and-high-fidelity-execution.jpg)

## What Is the Core Principle of MiFID II Audit Trails?

The central principle of MiFID II’s [audit trail requirements](https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) is the concept of “reconstructability.” This means that a firm must be able to provide regulators with a complete and accurate history of every order and transaction, from inception to completion. For RFQ and IOI workflows, this extends beyond simple trade tickets to encompass all related communications and data points that inform the trading decision. The regulation compels firms to create a detailed narrative of each trade, supported by verifiable data, that can be independently audited to ensure compliance with best execution, transparency, and other regulatory obligations. This principle of reconstructability forces firms to view their trading infrastructure as a holistic data ecosystem, where every component must contribute to a single, coherent [audit trail](https://prime.greeks.live/area/audit-trail/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite).

The implementation of this principle requires a significant investment in technology and process re-engineering. Firms must deploy systems capable of capturing and storing vast amounts of data from diverse sources, including email, instant messaging, voice calls, and [electronic trading platforms](https://prime.greeks.live/question/how-do-electronic-trading-platforms-alter-information-dynamics-in-illiquid-markets/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite). These systems must also be able to link related communications and events to specific orders and transactions, creating a [comprehensive audit trail](https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) for each trade.

The challenge lies in integrating these disparate data sources into a unified repository that can be easily queried and analyzed by compliance teams and regulators. This requires a robust data governance framework that ensures the accuracy, completeness, and integrity of the audit trail data.

> MiFID II fundamentally redefines RFQ and IOI processes by mandating a complete and reconstructible audit trail for all trading activities.

![A precise lens-like module, symbolizing high-fidelity execution and market microstructure insight, rests on a sharp blade, representing optimal smart order routing. Curved surfaces depict distinct liquidity pools within an institutional-grade Prime RFQ, enabling efficient RFQ for digital asset derivatives](https://options.greeks.live/wp-content/uploads/2025/07/high-fidelity-digital-asset-derivatives-execution-via-rfq-protocols.jpg)

## The Systemic Shift from Discretion to Demonstrable Process

Prior to MiFID II, RFQ and IOI workflows often relied heavily on trader discretion and informal communication channels. While records were kept, they were frequently fragmented and lacked the detail required for a [comprehensive audit](https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite). MiFID II systematically dismantled this approach by mandating that all trading decisions be supported by a clear and demonstrable process.

This shift has profound implications for firms, as it requires them to formalize their trading procedures and implement systems that can capture and document every step of the decision-making process. The regulation effectively replaces implicit knowledge and trader intuition with an explicit, data-driven framework for execution.

This systemic shift also extends to the classification of IOIs. Under MiFID II, firms must distinguish between “actionable” and “non-actionable” IOIs. An actionable IOI, which is a clear expression of trading interest that contains sufficient information to lead to a trade, is subject to [pre-trade transparency requirements](https://prime.greeks.live/question/how-do-regulatory-requirements-like-mifid-ii-impact-pre-trade-and-post-trade-transparency/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite). This means that firms must make these IOIs public in a timely manner, which represents a significant departure from the traditional, more discreet nature of IOI communication.

This requirement forces firms to implement systems and controls to accurately classify IOIs and ensure compliance with the relevant transparency obligations. The result is a more structured and transparent market, where information is disseminated more widely and trading opportunities are more accessible.

![A sophisticated RFQ engine module, its spherical lens observing market microstructure and reflecting implied volatility. This Prime RFQ component ensures high-fidelity execution for institutional digital asset derivatives, enabling private quotation for block trades](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-engine-for-best-execution-protocol.jpg)

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## Strategy

Adapting to MiFID II’s stringent audit trail requirements for RFQ and IOI workflows necessitates a strategic overhaul of a firm’s trading and data architecture. The core objective is to build a resilient and scalable framework that not only ensures compliance but also enhances operational efficiency and execution quality. A successful strategy moves beyond mere data collection to create an integrated ecosystem where data is captured, enriched, and made accessible for a variety of purposes, from regulatory reporting to trade surveillance and best execution analysis. This requires a multi-faceted approach that addresses technology, process, and governance in a coordinated manner.

A key element of this strategy is the development of a unified data model for all trading-related communications and events. This model should be capable of capturing the full context of each interaction, including the parties involved, the instruments discussed, the prices quoted, and the timestamps of each communication. By standardizing the data format and structure, firms can simplify the process of aggregating and analyzing data from different sources, which is essential for creating a comprehensive audit trail. This unified data model also provides a foundation for developing advanced analytics and machine learning applications that can identify potential compliance risks and optimize trading performance.

![A dark, precision-engineered core system, with metallic rings and an active segment, represents a Prime RFQ for institutional digital asset derivatives. Its transparent, faceted shaft symbolizes high-fidelity RFQ protocol execution, real-time price discovery, and atomic settlement, ensuring capital efficiency](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-prime-os-core-for-high-fidelity-rfq-protocol-execution-and-atomic-settlement.jpg)

## Architecting a Compliant RFQ Workflow

The design of a [MiFID II-compliant](https://prime.greeks.live/question/what-are-the-core-technological-challenges-in-automating-mifid-ii-compliant-partial-fill-reporting/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) RFQ workflow must prioritize the systematic capture of all relevant data points at each stage of the process. This begins with the initial client request and extends through to the final execution and settlement. The workflow should be automated wherever possible to minimize the risk of manual errors and ensure that all required data is captured in a timely and accurate manner. This includes the use of [electronic trading](https://prime.greeks.live/area/electronic-trading/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) platforms that can automatically log all RFQ-related communications and events, as well as the integration of these platforms with the firm’s order management and record-keeping systems.

A critical component of this architecture is the ability to link each RFQ to the firm’s best execution policy. This requires the firm to document the rationale for its choice of execution venue and counterparties for each trade. This documentation should include an analysis of the various factors that were considered, such as price, speed of execution, and likelihood of settlement.

By systematically capturing this information, firms can demonstrate to regulators that they have taken all reasonable steps to achieve the best possible outcome for their clients. This also provides valuable data for internal analysis and continuous improvement of the firm’s execution processes.

> A strategic response to MiFID II involves creating an integrated data ecosystem that supports compliance, operational efficiency, and advanced analytics.

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## IOI Classification and Management

The classification of IOIs as either “actionable” or “non-actionable” is a critical strategic consideration under MiFID II. Actionable IOIs are subject to pre-trade [transparency requirements](https://prime.greeks.live/area/transparency-requirements/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite), which means they must be made public in a way that is accessible to other market participants. This represents a significant operational and strategic challenge, as it requires firms to develop a robust process for identifying and classifying IOIs in real-time. This process should be supported by clear guidelines and training for traders, as well as automated systems that can flag potential actionable IOIs for review.

The management of IOIs also requires a sophisticated [data capture](https://prime.greeks.live/area/data-capture/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) and storage solution. Firms must be able to record all IOIs, both actionable and non-actionable, and link them to any subsequent orders or trades. This data is essential for demonstrating compliance with the relevant transparency and [record-keeping](https://prime.greeks.live/area/record-keeping/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) requirements.

It also provides a valuable source of market intelligence that can be used to inform trading decisions and identify new business opportunities. A successful IOI management strategy will therefore combine robust compliance controls with advanced data analytics to extract maximum value from this important data set.

The following table outlines the key distinctions and handling procedures for different types of IOIs under MiFID II:

| IOI Type | Definition | MiFID II Treatment | Required Audit Trail Components |
| --- | --- | --- | --- |
| Non-Actionable IOI | A general expression of interest that does not contain specific details such as price or quantity. | Not subject to pre-trade transparency requirements. | Timestamp, communicating parties, instrument discussed, and a record of the communication. |
| Actionable IOI | A specific expression of trading interest that includes details such as price, quantity, and side. | Subject to pre-trade transparency requirements and must be made public. | All components of a non-actionable IOI, plus the specific terms of the IOI and evidence of its public dissemination. |

![A deconstructed mechanical system with segmented components, revealing intricate gears and polished shafts, symbolizing the transparent, modular architecture of an institutional digital asset derivatives trading platform. This illustrates multi-leg spread execution, RFQ protocols, and atomic settlement processes](https://options.greeks.live/wp-content/uploads/2025/07/deconstructed-principal-trading-system-revealing-core-mechanics-of-digital-asset-derivatives-execution.jpg)

## Systematic Internaliser Considerations

For firms that meet the criteria to be classified as a [Systematic Internaliser](https://prime.greeks.live/area/systematic-internaliser/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) (SI), MiFID II imposes additional obligations related to RFQ and IOI handling. SIs are required to provide firm quotes to their clients on a regular basis and to make these quotes public. This requires a robust and resilient quoting infrastructure that can handle a high volume of requests and disseminate quotes in a timely and reliable manner. SIs must also have in place a comprehensive audit trail that captures all aspects of their quoting and trading activity, including the prices quoted, the clients to whom they were provided, and the resulting trades.

The decision to become an SI has significant strategic implications for a firm. While it can provide greater control over execution and create new revenue opportunities, it also entails a substantial investment in technology and compliance resources. Firms must carefully weigh the potential benefits against the costs and risks before embarking on this path.

A thorough cost-benefit analysis should consider not only the initial implementation costs but also the ongoing operational expenses associated with maintaining a compliant SI framework. This analysis should also take into account the potential impact on the firm’s existing business model and client relationships.

![Sleek Prime RFQ interface for institutional digital asset derivatives. An elongated panel displays dynamic numeric readouts, symbolizing multi-leg spread execution and real-time market microstructure](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-prime-os-rfq-options.jpg)

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## Execution

The execution of a [MiFID II-compliant audit trail](https://prime.greeks.live/question/what-are-the-key-data-points-in-a-mifid-ii-compliant-rfq-audit-log/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) for RFQ and IOI workflows is a complex undertaking that requires a deep understanding of the regulation’s technical requirements and a meticulous approach to implementation. The primary goal is to create a system that is not only compliant but also robust, scalable, and efficient. This involves the deployment of a range of technologies and the establishment of clear processes and governance structures. The execution phase is where the strategic vision is translated into a tangible operational reality, and it is here that the success or failure of a firm’s MiFID II compliance program is ultimately determined.

A successful execution plan will be phased and iterative, allowing for continuous improvement and adaptation as the regulatory landscape evolves. It should begin with a comprehensive gap analysis to identify any deficiencies in the firm’s existing infrastructure and processes. This should be followed by the development of a detailed implementation roadmap that outlines the specific steps to be taken, the resources required, and the timelines for completion. The plan should also include a robust testing and validation process to ensure that the new systems and controls are functioning as intended before they are deployed in a live environment.

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## The Operational Playbook for RFQ Audit Trails

The creation of a complete and accurate audit trail for RFQ workflows requires a systematic approach to data capture and management. The following steps provide a high-level overview of the key processes involved:

- **Initiation** ▴ The process begins with the receipt of a client’s RFQ. This can be received through a variety of channels, including email, instant messaging, or a proprietary electronic trading platform. Regardless of the channel, the RFQ must be immediately captured and logged in a centralized system.

- **Enrichment** ▴ Once the RFQ is logged, it must be enriched with additional metadata, such as the client’s [legal entity identifier](https://prime.greeks.live/area/legal-entity-identifier/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) (LEI), the instrument’s ISIN code, and the timestamp of the request. This enrichment process should be automated wherever possible to ensure accuracy and efficiency.

- **Distribution** ▴ The RFQ is then distributed to the relevant traders or algorithms for pricing. The system must track which individuals or systems received the RFQ and when.

- **Quoting** ▴ As quotes are generated in response to the RFQ, they must be captured and logged in the system. This includes the price, quantity, and any other relevant terms of the quote. The system must also record who provided the quote and when.

- **Execution** ▴ If the client chooses to execute on one of the quotes, the system must capture all the details of the resulting trade, including the execution price, quantity, and timestamp. This information must be linked back to the original RFQ and the corresponding quote.

- **Confirmation** ▴ The final step is to send a trade confirmation to the client. The system must record when the confirmation was sent and to whom.

This entire process must be supported by a robust record-keeping system that can store all the captured data in a secure and tamper-proof manner. The system must also be able to reconstruct the entire audit trail for any given RFQ on demand, providing a complete and accurate history of the entire workflow.

![A precision-engineered institutional digital asset derivatives system, featuring multi-aperture optical sensors and data conduits. This high-fidelity RFQ engine optimizes multi-leg spread execution, enabling latency-sensitive price discovery and robust principal risk management via atomic settlement and dynamic portfolio margin](https://options.greeks.live/wp-content/uploads/2025/08/prime-os-institutional-digital-asset-rfq-execution-microstructure-alpha-generation-system.jpg)

## Data Requirements for a Reconstructible RFQ Audit Trail

To meet the reconstructability requirement of MiFID II, firms must capture a wide range of data for each RFQ. The following table provides a detailed breakdown of the key data fields that should be included in the audit trail:

| Data Category | Data Field | Description |
| --- | --- | --- |
| Client Information | Client ID | A unique identifier for the client, such as their LEI. |
| Instrument Information | Instrument ID | A unique identifier for the financial instrument, such as its ISIN. |
| Quoting Information | Quote Provider ID | A unique identifier for the trader or algorithm that provided the quote. |
| Execution Information | Execution Timestamp | The precise date and time the trade was executed. |

![Abstract spheres and a translucent flow visualize institutional digital asset derivatives market microstructure. It depicts robust RFQ protocol execution, high-fidelity data flow, and seamless liquidity aggregation](https://options.greeks.live/wp-content/uploads/2025/07/precision-market-microstructure-for-institutional-digital-asset-derivatives-leveraging-rfq-protocols-and-atomic-settlement-across-prime-os.jpg)

## System Integration and Technological Architecture

The technological architecture required to support a [MiFID II-compliant audit](https://prime.greeks.live/question/what-are-the-key-data-points-in-a-mifid-ii-compliant-rfq-audit-log/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) trail for RFQ and IOI workflows is complex and multi-layered. It typically consists of the following key components:

- **Data Capture** ▴ This layer is responsible for capturing data from a wide range of sources, including email servers, instant messaging platforms, voice recording systems, and electronic trading platforms. This often involves the use of specialized connectors and APIs to extract the relevant data in a structured format.

- **Data Ingestion and Processing** ▴ Once the data is captured, it must be ingested into a central processing engine. This engine is responsible for parsing, normalizing, and enriching the data to ensure that it is in a consistent and usable format. This may involve the use of natural language processing (NLP) to extract key information from unstructured communications like emails and chat messages.

- **Data Storage** ▴ The processed data is then stored in a secure and scalable repository. This is often a distributed database or a data lake that is designed to handle large volumes of structured and unstructured data. The storage solution must be compliant with all relevant data retention and security requirements.

- **Analytics and Reporting** ▴ This layer provides the tools and interfaces for querying, analyzing, and reporting on the stored data. This includes a user-friendly interface for compliance officers to search for and reconstruct [audit trails](https://prime.greeks.live/question/how-should-an-institutions-internal-compliance-framework-integrate-with-the-audit-trails-from-a-third-party-rfq-platform/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite), as well as a set of pre-built reports for regulatory reporting and internal management purposes.

- **Integration with Other Systems** ▴ The audit trail system must be tightly integrated with other key systems, such as the firm’s order management system (OMS), execution management system (EMS), and customer relationship management (CRM) system. This integration is essential for creating a holistic view of the client’s trading activity and for ensuring that the audit trail is complete and accurate.

The implementation of this architecture requires a significant investment in both technology and expertise. Firms will need to have a team of skilled engineers and data scientists to design, build, and maintain the system. They will also need to have a strong governance framework in place to ensure that the system is used in a compliant and effective manner.

> Executing a MiFID II-compliant audit trail requires a meticulous, phased approach that combines advanced technology with robust governance.

![A sleek, split capsule object reveals an internal glowing teal light connecting its two halves, symbolizing a secure, high-fidelity RFQ protocol facilitating atomic settlement for institutional digital asset derivatives. This represents the precise execution of multi-leg spread strategies within a principal's operational framework, ensuring optimal liquidity aggregation](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-execution-system-2.jpg)

## How Can Firms Ensure Clock Synchronisation?

A critical technical requirement of MiFID II is the synchronization of all business clocks to a common time source. This is essential for ensuring the accuracy and integrity of the timestamps in the audit trail. The regulation specifies that firms must synchronize their clocks to Coordinated Universal Time (UTC) and be able to demonstrate the accuracy of their timestamps to within a specified tolerance.

To achieve this, firms must implement a robust clock synchronization protocol, such as the Network Time Protocol (NTP), across their entire IT infrastructure. This includes all servers, network devices, and trading applications that are involved in the generation of the audit trail.

Firms must also have a process in place for regularly monitoring and verifying the accuracy of their clocks. This should include the use of automated monitoring tools that can alert the firm to any deviations from the required tolerance. The firm must also maintain a log of all clock synchronization activities, which can be provided to regulators upon request. By implementing a comprehensive clock synchronization strategy, firms can ensure that their audit trails are accurate, reliable, and fully compliant with the requirements of MiFID II.

![A symmetrical, high-tech digital infrastructure depicts an institutional-grade RFQ execution hub. Luminous conduits represent aggregated liquidity for digital asset derivatives, enabling high-fidelity execution and atomic settlement](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-institutional-digital-asset-derivatives-rfq-system.jpg)

## References

- ICMA. (2016). MiFID II/MiFIR ▴ Transparency & Best Execution requirements in respect of bonds Q1 2016.

- Gupta, M. & Mishra, S. (2016). MiFID II & MiFIR ▴ Reporting Requirements and Associated Operational Challenges. Sapient Global Markets.

- European Securities and Markets Authority. (2017). Q&As on MiFID II and MiFIR investor protection and intermediaries topics (ESMA35-43-349).

- Eurex. (2017). Information handbook for audit trail, transaction and other regulatory reportings under the MiFID II/ MiFIR regime.

- Prudential Regulation Authority. (2025). CP9/25 ▴ Markets in Financial Instruments Directive Organisational Regulation.

![A precision engineered system for institutional digital asset derivatives. Intricate components symbolize RFQ protocol execution, enabling high-fidelity price discovery and liquidity aggregation](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-execution-precision-4.jpg)

## Reflection

The implementation of MiFID II’s audit trail requirements for RFQ and IOI workflows has been a significant undertaking for the financial industry. It has forced firms to fundamentally rethink their approach to data management and to invest heavily in new technologies and processes. While the journey has been challenging, it has also created new opportunities for firms to enhance their operational efficiency, improve their execution quality, and gain a deeper understanding of their clients’ trading behavior. The regulation has acted as a catalyst for innovation, driving the development of new solutions for data capture, analysis, and reporting.

As firms move beyond the initial implementation phase, the focus will shift to optimizing their audit trail systems and leveraging the vast amounts of data they have collected. This will involve the use of advanced analytics and machine learning to identify patterns and trends in the data, which can be used to improve risk management, detect market abuse, and enhance the client experience. The firms that are able to successfully harness the power of this data will be well-positioned to thrive in the new regulatory landscape and to gain a significant competitive advantage in the years to come.

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## What Is the Future of Regulatory Compliance?

The future of regulatory compliance will be increasingly data-driven. Regulators will continue to demand greater transparency and accountability from firms, and they will expect to have access to high-quality, granular data on all aspects of their trading activity. This will require firms to continue to invest in their data management and analytics capabilities and to adopt a more proactive and forward-looking approach to compliance. The firms that are able to embrace this new reality and to build a culture of data-driven decision-making will be the ones that are best able to navigate the complex and ever-changing regulatory environment.

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## Glossary

<a href="https://prime.greeks.live/area/mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Three interconnected units depict a Prime RFQ for institutional digital asset derivatives. The glowing blue layer signifies real-time RFQ execution and liquidity aggregation, ensuring high-fidelity execution across market microstructure](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-liquidity-aggregation-os.jpg)

## Mifid Ii

Meaning ▴ MiFID II, the Markets in Financial Instruments Directive II, constitutes a comprehensive regulatory framework enacted by the European Union to govern financial markets, investment firms, and trading venues. </a><a href="https://prime.greeks.live/area/ioi/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A central dark nexus with intersecting data conduits and swirling translucent elements depicts a sophisticated RFQ protocol's intelligence layer. This visualizes dynamic market microstructure, precise price discovery, and high-fidelity execution for institutional digital asset derivatives, optimizing capital efficiency and mitigating counterparty risk](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-engine-visualizing-high-fidelity-execution-and-market-microstructure-dynamics.jpg)

## Ioi

Meaning ▴ An Indication of Interest, or IOI, represents a non-firm, non-binding declaration from a market participant or broker-dealer signaling a potential willingness to buy or sell a specific quantity of a financial instrument at a stated or implied price. </a><a href="https://prime.greeks.live/area/best-execution/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A polished metallic disc represents an institutional liquidity pool for digital asset derivatives. A central spike enables high-fidelity execution via algorithmic trading of multi-leg spreads](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-execution-liquidity-system.jpg)

## Best Execution

Meaning ▴ Best Execution is the obligation to obtain the most favorable terms reasonably available for a client's order. </a><a href="https://prime.greeks.live/area/rfq/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A stylized abstract radial design depicts a central RFQ engine processing diverse digital asset derivatives flows. Distinct halves illustrate nuanced market microstructure, optimizing multi-leg spreads and high-fidelity execution, visualizing a Principal's Prime RFQ managing aggregated inquiry and latent liquidity](https://options.greeks.live/wp-content/uploads/2025/07/principal-rfq-execution-engine-optimizing-digital-asset-derivatives-market-microstructure-for-institutional-liquidity-aggregation.jpg)

## Rfq

Meaning ▴ Request for Quote (RFQ) is a structured communication protocol enabling a market participant to solicit executable price quotations for a specific instrument and quantity from a selected group of liquidity providers. </a><a href="https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A multi-layered electronic system, centered on a precise circular module, visually embodies an institutional-grade Crypto Derivatives OS. It represents the intricate market microstructure enabling high-fidelity execution via RFQ protocols for digital asset derivatives, driven by an intelligence layer facilitating algorithmic trading and optimal price discovery](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-engine-facilitating-high-fidelity-execution-and-optimal-price-discovery.jpg)

## Audit Trail Requirements

An RFQ audit trail provides the immutable, data-driven evidence required to prove a systematic process for achieving best execution under MiFID II. </a><a href="https://prime.greeks.live/area/audit-trail/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A sleek, circular, metallic-toned device features a central, highly reflective spherical element, symbolizing dynamic price discovery and implied volatility for Bitcoin options. This private quotation interface within a Prime RFQ platform enables high-fidelity execution of multi-leg spreads via RFQ protocols, minimizing information leakage and slippage](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-institutional-digital-asset-derivatives-rfq-execution-hub.jpg)

## Audit Trail

Meaning ▴ An Audit Trail is a chronological, immutable record of system activities, operations, or transactions within a digital environment, detailing event sequence, user identification, timestamps, and specific actions. </a><a href="https://prime.greeks.live/question/how-do-electronic-trading-platforms-alter-information-dynamics-in-illiquid-markets/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A sleek, institutional-grade device, with a glowing indicator, represents a Prime RFQ terminal. Its angled posture signifies focused RFQ inquiry for Digital Asset Derivatives, enabling high-fidelity execution and precise price discovery within complex market microstructure, optimizing latent liquidity](https://options.greeks.live/wp-content/uploads/2025/08/institutional-digital-asset-derivatives-rfq-execution-terminal-facilitating-high-fidelity-price-discovery-and-optimal-liquidity-aggregation.jpg)

## Electronic Trading Platforms

Electronic platforms restructure illiquid markets by centralizing information and enabling protocol-driven execution strategies. </a><a href="https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Abstract planes illustrate RFQ protocol execution for multi-leg spreads. A dynamic teal element signifies high-fidelity execution and smart order routing, optimizing price discovery](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-optimization.jpg)

## Comprehensive Audit Trail

An RFQ audit trail provides the immutable, data-driven evidence required to prove a systematic process for achieving best execution under MiFID II. </a><a href="https://prime.greeks.live/question/how-does-an-rfq-audit-trail-support-best-execution-requirements-under-mifid-ii/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A sophisticated institutional-grade system's internal mechanics. A central metallic wheel, symbolizing an algorithmic trading engine, sits above glossy surfaces with luminous data pathways and execution triggers](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-execution-engine-core.jpg)

## Comprehensive Audit

An RFQ audit trail provides the immutable, data-driven evidence required to prove a systematic process for achieving best execution under MiFID II. </a><a href="https://prime.greeks.live/question/how-do-regulatory-requirements-like-mifid-ii-impact-pre-trade-and-post-trade-transparency/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A sophisticated modular apparatus, likely a Prime RFQ component, showcases high-fidelity execution capabilities. Its interconnected sections, featuring a central glowing intelligence layer, suggest a robust RFQ protocol engine](https://options.greeks.live/wp-content/uploads/2025/07/institutional-rfq-engine-core-for-digital-asset-derivatives-high-fidelity-execution-protocols.jpg)

## Pre-Trade Transparency Requirements

MiFID II mandates broad pre- and post-trade transparency, transforming market structure and requiring new data-driven execution strategies. </a><a href="https://prime.greeks.live/area/electronic-trading/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Geometric planes and transparent spheres represent complex market microstructure. A central luminous core signifies efficient price discovery and atomic settlement via RFQ protocol](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-execution-microstructure-4.jpg)

## Electronic Trading

Meaning ▴ Electronic Trading refers to the execution of financial instrument transactions through automated, computer-based systems and networks, bypassing traditional manual methods. </a><a href="https://prime.greeks.live/question/what-are-the-core-technological-challenges-in-automating-mifid-ii-compliant-partial-fill-reporting/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A beige, triangular device with a dark, reflective display and dual front apertures. This specialized hardware facilitates institutional RFQ protocols for digital asset derivatives, enabling high-fidelity execution, market microstructure analysis, optimal price discovery, capital efficiency, block trades, and portfolio margin](https://options.greeks.live/wp-content/uploads/2025/08/institutional-digital-asset-derivatives-rfq-terminal-for-high-fidelity-execution-and-precise-market-microstructure-analysis.jpg)

## Mifid Ii-Compliant

Automating MiFID II partial fill reporting requires a systemic shift to a fill-centric, event-driven architecture to manage data granularity. </a><a href="https://prime.greeks.live/area/transparency-requirements/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Abstract geometric forms depict a Prime RFQ for institutional digital asset derivatives. A central RFQ engine drives block trades and price discovery with high-fidelity execution](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-engine-optimizing-market-microstructure-for-high-fidelity-execution.jpg)

## Transparency Requirements

Meaning ▴ Transparency Requirements mandate the disclosure of pertinent market data, pricing information, and execution details for financial transactions, particularly within institutional digital asset derivatives. </a><a href="https://prime.greeks.live/area/record-keeping/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A sleek, angled object, featuring a dark blue sphere, cream disc, and multi-part base, embodies a Principal's operational framework. This represents an institutional-grade RFQ protocol for digital asset derivatives, facilitating high-fidelity execution and price discovery within market microstructure, optimizing capital efficiency](https://options.greeks.live/wp-content/uploads/2025/08/prime-os-rfq-for-institutional-digital-asset-derivatives-execution.jpg)

## Record-Keeping

Meaning ▴ Record-keeping signifies the systematic, immutable capture and preservation of all transactional and operational data within an institutional digital asset derivatives ecosystem. </a><a href="https://prime.greeks.live/area/data-capture/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A futuristic circular financial instrument with segmented teal and grey zones, centered by a precision indicator, symbolizes an advanced Crypto Derivatives OS. This system facilitates institutional-grade RFQ protocols for block trades, enabling granular price discovery and optimal multi-leg spread execution across diverse liquidity pools](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-execution-microstructure-platform.jpg)

## Data Capture

Meaning ▴ Data Capture refers to the precise, systematic acquisition and ingestion of raw, real-time information streams from various market sources into a structured data repository. </a><a href="https://prime.greeks.live/area/systematic-internaliser/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A luminous teal bar traverses a dark, textured metallic surface with scattered water droplets. This represents the precise, high-fidelity execution of an institutional block trade via a Prime RFQ, illustrating real-time price discovery](https://options.greeks.live/wp-content/uploads/2025/07/high-fidelity-real-time-institutional-digital-asset-rfq-execution-stream-visualizing-prime-os-liquidity-flow.jpg)

## Systematic Internaliser

Meaning ▴ A Systematic Internaliser (SI) is a financial institution executing client orders against its own capital on an organized, frequent, systematic basis off-exchange. </a><a href="https://prime.greeks.live/question/what-are-the-key-data-points-in-a-mifid-ii-compliant-rfq-audit-log/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Glowing teal conduit symbolizes high-fidelity execution pathways and real-time market microstructure data flow for digital asset derivatives. Smooth grey spheres represent aggregated liquidity pools and robust counterparty risk management within a Prime RFQ, enabling optimal price discovery](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocol-market-microstructure-prime-os.jpg)

## Mifid Ii-Compliant Audit Trail

A MiFID II RFQ audit log is a time-sequenced data architecture proving best execution through complete trade lifecycle reconstruction. </a><a href="https://prime.greeks.live/area/legal-entity-identifier/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![Intricate mechanisms represent a Principal's operational framework, showcasing market microstructure of a Crypto Derivatives OS. Transparent elements signify real-time price discovery and high-fidelity execution, facilitating robust RFQ protocols for institutional digital asset derivatives and options trading](https://options.greeks.live/wp-content/uploads/2025/07/principal-rfq-protocol-engine-for-institutional-digital-asset-derivatives.jpg)

## Legal Entity Identifier

Meaning ▴ The Legal Entity Identifier is a 20-character alphanumeric code uniquely identifying legally distinct entities in financial transactions. </a><a href="https://prime.greeks.live/question/what-are-the-key-data-points-in-a-mifid-ii-compliant-rfq-audit-log/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A dynamic central nexus of concentric rings visualizes Prime RFQ aggregation for digital asset derivatives. Four intersecting light beams delineate distinct liquidity pools and execution venues, emphasizing high-fidelity execution and precise price discovery](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-rfq-hub-for-digital-asset-derivatives-execution.jpg)

## Mifid Ii-Compliant Audit

A MiFID II RFQ audit log is a time-sequenced data architecture proving best execution through complete trade lifecycle reconstruction. </a><a href="https://prime.greeks.live/question/how-should-an-institutions-internal-compliance-framework-integrate-with-the-audit-trails-from-a-third-party-rfq-platform/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
![A multi-layered device with translucent aqua dome and blue ring, on black. This represents an Institutional-Grade Prime RFQ Intelligence Layer for Digital Asset Derivatives](https://options.greeks.live/wp-content/uploads/2025/08/institutional-digital-asset-derivatives-rfq-protocol-intelligence-layer.jpg)

## Audit Trails

Integrating RFQ audit trails transforms compliance from a reactive task into a proactive, data-driven institutional capability. </a>

**Tags:** [Clock Synchronisation](https://options.greeks.live/area/clock-synchronisation/), [IOI](https://options.greeks.live/area/ioi/), [Record-Keeping](https://options.greeks.live/area/record-keeping/), [Data Capture](https://options.greeks.live/area/data-capture/), [Pre-Trade Transparency](https://options.greeks.live/area/pre-trade-transparency/), [MiFID II](https://options.greeks.live/area/mifid-ii/)	

## Discover More

- 
### [What Are the Key Differences in RFQ Compliance between US and European Markets?](https://options.greeks.live/question/what-are-the-key-differences-in-rfq-compliance-between-us-and-european-markets/)
![Central metallic hub connects beige conduits, representing an institutional RFQ engine for digital asset derivatives. It facilitates multi-leg spread execution, ensuring atomic settlement, optimal price discovery, and high-fidelity execution within a Prime RFQ for capital efficiency.](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-digital-asset-derivatives-rfq-protocol-execution-hub.jpg)

Divergent RFQ compliance stems from the US model's process-driven protocols versus the EU's principles-based best execution framework.

- 
### [How Do Regulatory Frameworks like MiFID II and Regulation ATS Impact Rfq Platform Design?](https://options.greeks.live/question/how-do-regulatory-frameworks-like-mifid-ii-and-regulation-ats-impact-rfq-platform-design/)
![Two sleek, abstract forms, one dark, one light, are precisely stacked, symbolizing a multi-layered institutional trading system. This embodies sophisticated RFQ protocols, high-fidelity execution, and optimal liquidity aggregation for digital asset derivatives, ensuring robust market microstructure and capital efficiency within a Prime RFQ.](https://options.greeks.live/wp-content/uploads/2025/07/institutional-grade-digital-asset-derivatives-platform-architecture-high-fidelity-execution-protocols-and-liquidity-aggregation.jpg)

Regulatory frameworks mandate that RFQ platforms evolve from simple communication tools into robust, auditable systems for demonstrating best execution.

- 
### [How Do MiFID II and FINRA Rules Differ in Their Practical Application to Request-For-Quote Markets?](https://options.greeks.live/question/how-do-mifid-ii-and-finra-rules-differ-in-their-practical-application-to-request-for-quote-markets/)
![Central teal-lit mechanism with radiating pathways embodies a Prime RFQ for institutional digital asset derivatives. It signifies RFQ protocol processing, liquidity aggregation, and high-fidelity execution for multi-leg spread trades, enabling atomic settlement within market microstructure via quantitative analysis.](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-core-for-institutional-digital-asset-rfq-protocol-execution-engine.jpg)

MiFID II architects market transparency pre-trade, while FINRA enforces fair conduct through post-trade diligence and reporting.

- 
### [How Do Regulatory Frameworks like Mifid Ii Influence the Adoption of Electronic Rfq Platforms in Fixed Income?](https://options.greeks.live/question/how-do-regulatory-frameworks-like-mifid-ii-influence-the-adoption-of-electronic-rfq-platforms-in-fixed-income/)
![A precisely balanced transparent sphere, representing an atomic settlement or digital asset derivative, rests on a blue cross-structure symbolizing a robust RFQ protocol or execution management system. This setup is anchored to a textured, curved surface, depicting underlying market microstructure or institutional-grade infrastructure, enabling high-fidelity execution, optimized price discovery, and capital efficiency.](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-engineered-rfq-block-trade-execution-for-digital-asset-derivatives.jpg)

MiFID II's data-intensive compliance mandates made the auditable, competitive framework of eRFQ platforms a structural necessity for fixed-income best execution.

- 
### [How Do Regulatory Frameworks like MiFID II Influence the Strategy for Managing RFQ Information Leakage?](https://options.greeks.live/question/how-do-regulatory-frameworks-like-mifid-ii-influence-the-strategy-for-managing-rfq-information-leakage/)
![Stacked, distinct components, subtly tilted, symbolize the multi-tiered institutional digital asset derivatives architecture. Layers represent RFQ protocols, private quotation aggregation, core liquidity pools, and atomic settlement. This design optimizes market microstructure for high-fidelity execution and capital efficiency.](https://options.greeks.live/wp-content/uploads/2025/07/layered-institutional-digital-asset-derivatives-rfq-protocols-optimizing-principal-execution-management-systems-for-best-execution.jpg)

MiFID II transforms RFQ information leakage management from a relational art into a data-driven science of systematic risk control.

- 
### [What Is the Role of the FIX Protocol in Transmitting Compliance Data during an RFQ?](https://options.greeks.live/question/what-is-the-role-of-the-fix-protocol-in-transmitting-compliance-data-during-an-rfq/)
![Interconnected, sharp-edged geometric prisms on a dark surface reflect complex light. This embodies the intricate market microstructure of institutional digital asset derivatives, illustrating RFQ protocol aggregation for block trade execution, price discovery, and high-fidelity execution within a Principal's operational framework enabling optimal liquidity.](https://options.greeks.live/wp-content/uploads/2025/07/precision-geometric-prisms-reflecting-institutional-digital-asset-derivatives-rfq-price-discovery-and-optimized-execution-market-microstructure.jpg)

The FIX protocol embeds auditable compliance data into the RFQ lifecycle, transforming regulatory adherence into a systemic, pre-trade function.

- 
### [What Are the Key Compliance Considerations for RFQ Workflows in Fixed Income?](https://options.greeks.live/question/what-are-the-key-compliance-considerations-for-rfq-workflows-in-fixed-income/)
![A sleek, black and beige institutional-grade device, featuring a prominent optical lens for real-time market microstructure analysis and an open modular port. This RFQ protocol engine facilitates high-fidelity execution of multi-leg spreads, optimizing price discovery for digital asset derivatives and accessing latent liquidity.](https://options.greeks.live/wp-content/uploads/2025/08/institutional-digital-asset-derivatives-rfq-execution-engine-for-high-fidelity-price-discovery-and-latent-liquidity-aggregation-across-multi-leg-spreads.jpg)

A compliant fixed income RFQ workflow is a systemic architecture for auditable, high-fidelity execution and risk management.

- 
### [What Are the Regulatory Reporting Requirements Associated with Electronic RFQ Trading?](https://options.greeks.live/question/what-are-the-regulatory-reporting-requirements-associated-with-electronic-rfq-trading/)
![Precision-engineered device with central lens, symbolizing Prime RFQ Intelligence Layer for institutional digital asset derivatives. Facilitates RFQ protocol optimization, driving price discovery for Bitcoin options and Ethereum futures. Robust design ensures high-fidelity execution, capital efficiency, and counterparty risk mitigation.](https://options.greeks.live/wp-content/uploads/2025/07/high-fidelity-institutional-rfq-protocol-engine-for-digital-asset-derivatives-options-trading.jpg)

Regulatory reporting for electronic RFQs mandates a systematic, high-fidelity capture of the entire trade lifecycle for transparency and supervision.

- 
### [How Do Large in Scale Waivers under MiFID II Impact RFQ Execution Strategy for Block Trades?](https://options.greeks.live/question/how-do-large-in-scale-waivers-under-mifid-ii-impact-rfq-execution-strategy-for-block-trades/)
![Clear geometric prisms and flat planes interlock, symbolizing complex market microstructure and multi-leg spread strategies in institutional digital asset derivatives. A solid teal circle represents a discrete liquidity pool for private quotation via RFQ protocols, ensuring high-fidelity execution.](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-derivatives-rfq-protocols-price-discovery-and-high-fidelity-execution.jpg)

LIS waivers under MiFID II enable discreet, large-scale liquidity sourcing via RFQ protocols, minimizing market impact for block trades.

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        "caption": "This abstract image visualizes a central RFQ protocol engine orchestrating principal liquidity aggregation across distinct institutional liquidity pools for digital asset derivatives. It symbolizes the complex market microstructure enabling high-fidelity execution and optimal price discovery via multi-dealer RFQ workflows. This sophisticated Crypto Derivatives OS optimizes block trades through smart order routing, minimizing slippage and ensuring best execution."
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                "text": "The central principle of MiFID II's audit trail requirements is the concept of \"reconstructability.\" This means that a firm must be able to provide regulators with a complete and accurate history of every order and transaction, from inception to completion. For RFQ and IOI workflows, this extends beyond simple trade tickets to encompass all related communications and data points that inform the trading decision. The regulation compels firms to create a detailed narrative of each trade, supported by verifiable data, that can be independently audited to ensure compliance with best execution, transparency, and other regulatory obligations. This principle of reconstructability forces firms to view their trading infrastructure as a holistic data ecosystem, where every component must contribute to a single, coherent audit trail."
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                "text": "A critical technical requirement of MiFID II is the synchronization of all business clocks to a common time source. This is essential for ensuring the accuracy and integrity of the timestamps in the audit trail. The regulation specifies that firms must synchronize their clocks to Coordinated Universal Time (UTC) and be able to demonstrate the accuracy of their timestamps to within a specified tolerance. To achieve this, firms must implement a robust clock synchronization protocol, such as the Network Time Protocol (NTP), across their entire IT infrastructure. This includes all servers, network devices, and trading applications that are involved in the generation of the audit trail."
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                "text": "The future of regulatory compliance will be increasingly data-driven. Regulators will continue to demand greater transparency and accountability from firms, and they will expect to have access to high-quality, granular data on all aspects of their trading activity. This will require firms to continue to invest in their data management and analytics capabilities and to adopt a more proactive and forward-looking approach to compliance. The firms that are able to embrace this new reality and to build a culture of data-driven decision-making will be the ones that are best able to navigate the complex and ever-changing regulatory environment."
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```


---

**Original URL:** https://options.greeks.live/question/how-do-mifid-ii-regulations-impact-rfq-and-ioi-audit-trail-requirements/
