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Concept

An institution’s approach to regulatory obligations reveals its core operational philosophy. The annual RTS 28 reporting requirement, born from the second Markets in Financial Instruments Directive, is currently undergoing a significant evolution. In early 2024, European regulators signaled a deprioritization of enforcement for these specific reports, acknowledging their limited utility to end clients and paving the way for their eventual removal from the statute. A superficial reading of this development suggests a simple reduction in administrative burden.

A more sophisticated interpretation, however, recognizes that the operational discipline imposed by RTS 28 provides a valuable, non-negotiable blueprint for constructing a resilient and evidence-based execution architecture. The mandate may be fading, but the methodology it enforces is timeless.

The central purpose of the RTS 28 report was to compel investment firms to publicly disclose their top five execution venues and provide a quantitative summary of the execution quality achieved. For firms that heavily utilize Request for Quote (RFQ) platforms, this presented a unique challenge and opportunity. RFQ systems, by their nature, are decentralized and bilateral. They represent a distinct form of liquidity discovery compared to lit central limit order books.

The data generated within these platforms ▴ a rich log of counterparty interactions, response times, quote competitiveness, and execution success ▴ is the raw material for a profound analysis of a firm’s trading efficacy. Leveraging this data for RTS 28, or for the enduring best execution analysis that supersedes it, is an exercise in transforming a compliance task into a strategic intelligence function.

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What Is the True Value of Regulatory Data Frameworks?

The value of a framework like RTS 28 lies in its structure. It forces a firm to move beyond anecdotal evidence and establish a rigorous, data-driven process for evaluating its execution counterparties. The core of market microstructure theory is the study of how trading mechanisms translate latent investor demand into transactions, a process invariably subject to frictions like information asymmetry and transaction costs.

RFQ protocols are a specific mechanism designed to manage these frictions for large or less liquid orders, allowing a firm to discreetly solicit competitive prices from a select group of liquidity providers. Without a systematic analysis of the resulting data, a firm is effectively navigating this complex environment blind.

RFQ platform data provides the objective, granular evidence required to validate a firm’s execution policy and systematically refine its counterparty relationships.

The data from an RFQ platform is a complete record of a competitive process. Each request initiates a micro-auction, and the data log captures every participant’s behavior. This includes not only who provided the best price but also the speed of their response, their willingness to quote, and the frequency with which their quotes lead to successful execution.

This information is the ground truth of a firm’s execution quality. By systematizing its collection and analysis, a firm builds an empirical foundation for its venue selection policy, which is the ultimate objective of the best execution mandate that underpins RTS 28.

Therefore, the operational question evolves. It shifts from “How do we comply with RTS 28?” to “How do we build a perpetual, data-centric execution quality monitoring system using our RFQ platform data as the primary input?” This reframing transforms the exercise from a retrospective reporting task into a proactive, continuous loop of performance analysis and optimization. The principles of RTS 28 serve as the architectural schematic for this system, ensuring that the analysis is comprehensive, quantifiable, and aligned with the fiduciary duty to achieve the best possible outcome for clients.


Strategy

A strategic framework for leveraging RFQ data begins with the recognition that this data is a high-fidelity digital exhaust of a firm’s liquidity sourcing process. The objective is to architect a system that captures, normalizes, and analyzes this exhaust to produce actionable intelligence for both internal oversight and, where still required, regulatory disclosure. The strategy is built on a direct mapping of the granular data points available from RFQ platforms to the qualitative execution factors defined under MiFID II. These factors ▴ price, costs, speed, likelihood of execution, size, and nature of the order ▴ are the pillars of any robust best execution policy.

The first step is establishing a data governance protocol. This involves defining a canonical data model for all RFQ interactions, regardless of the specific platform used. The model must capture the full lifecycle of a quote request, from initiation to execution or expiration. Key data fields must be identified and standardized.

This creates a clean, reliable dataset that can be fed into an analytical engine. This process of data structuring is the foundational layer upon which the entire analytical framework is built. Without it, any subsequent analysis would be inconsistent and unreliable.

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How Does RFQ Data Substantiate Execution Quality?

The core of the strategy involves translating raw data points into metrics that directly measure the MiFID II execution factors. This translation is what gives the data meaning and allows for a systematic comparison of execution venues (in the RFQ context, the liquidity providers). An effective system connects each piece of data to a specific performance indicator, providing a multi-dimensional view of counterparty performance.

The following table illustrates the direct mapping between common RFQ platform data fields and the analytical factors required for a comprehensive execution quality assessment.

RFQ Data Point MiFID II Execution Factor Strategic Implication
Executed Price vs. Arrival Price Price Measures price improvement or slippage against a baseline market price at the moment of order receipt. This is a primary measure of execution quality.
Executed Price vs. Best Quoted Price Costs Analyzes the spread captured by the winning counterparty, representing an implicit cost. A smaller spread indicates a more competitive quote.
Quote Response Timestamp – Quote Request Timestamp Speed Quantifies the response latency of each liquidity provider. Slower responses may indicate a lack of automation or attention, affecting overall execution timeliness.
Fill Ratio (Executed Trades / Quoted Trades) Likelihood of Execution Measures the reliability of a counterparty’s quotes. A low fill ratio suggests that quotes may be ‘phantom’ or not consistently firm.
Rejection Rate (Rejected Requests / Total Requests) Likelihood of Execution Indicates a counterparty’s appetite for the firm’s flow. High rejection rates for certain instruments or sizes signal a need to diversify counterparties.
Quoted Size vs. Requested Size Size Assesses a counterparty’s capacity and willingness to handle the firm’s typical order sizes. Consistent partial quotes may indicate capacity constraints.

This mapping forms the logic of the analytical engine. By processing trade data through this lens, a firm can move from a simple ranking of venues based on volume to a sophisticated, multi-factor scoring system. This system can then be used to objectively identify the top counterparties who consistently deliver the best results across the most important execution factors for the firm’s specific trading style and client base.

A systematic data strategy transforms compliance from a historical reporting exercise into a forward-looking tool for optimizing execution performance.
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Building the Internal Reporting Architecture

With a data governance model and an analytical framework in place, the final strategic component is the reporting architecture. This involves designing standardized internal dashboards and reports that present the findings of the analysis in a clear and concise manner. These reports are the primary tool for the firm’s Best Execution Committee or equivalent oversight body. They should provide a periodic, evidence-based review of counterparty performance, highlighting trends and identifying areas for improvement.

The structure of these internal reports can mirror the format of the original RTS 28 disclosures. This provides a familiar and regulatorily-tested structure for presenting the information. The key difference is the audience and purpose.

These reports are not for public consumption; they are for internal strategic decision-making. They are the mechanism by which the firm demonstrates to itself, its auditors, and its regulators that it has a robust, repeatable, and effective process for fulfilling its best execution obligations, regardless of the status of a specific reporting mandate.


Execution

The execution phase translates the strategic framework into a concrete operational workflow. This is the engineering of the analytical system, a step-by-step process for transforming raw RFQ data into the definitive evidence required for rigorous best execution analysis. This operational playbook is designed to be implemented by a firm’s technology and compliance teams, creating a repeatable and auditable system for performance monitoring.

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The Operational Playbook a Data Analysis Workflow

Implementing a robust analysis system requires a clear, sequential process. This workflow ensures that data is handled consistently and the resulting analytics are sound. The process can be broken down into four distinct stages, from raw data ingestion to final report generation.

  1. Data Aggregation and Normalization This initial stage involves collecting RFQ data from all relevant platforms. Many platforms provide this data via API endpoints or scheduled flat-file deliveries. The primary task is to transform these disparate data sources into a single, normalized format as defined by the data governance protocol. This involves mapping platform-specific field names to the firm’s canonical model and ensuring consistent data types and formats, especially for timestamps and pricing information.
  2. Data Enrichment Once normalized, the raw data should be enriched with additional market context. This is a critical step for meaningful analysis. For each RFQ, the dataset should be appended with a baseline “arrival price” for the instrument. This could be the prevailing mid-point of the primary market’s best bid and offer (BBO) at the time of the quote request. This enrichment allows for a true measure of price improvement and slippage.
  3. Quantitative Metric Calculation With a clean, enriched dataset, the analytical engine can compute the key performance indicators for each liquidity provider. This involves running calculations on a trade-by-trade basis and then aggregating the results by counterparty over the reporting period. The goal is to build a comprehensive scorecard for each liquidity provider.
  4. Reporting and Visualization The final stage is to present the aggregated metrics in a format suitable for review by the Best Execution Committee. This involves generating summary tables and visualizations that highlight key performance trends and allow for easy comparison between counterparties. The output should be clear enough to support strategic decisions about the firm’s liquidity provider relationships.
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Quantitative Modeling and Data Analysis

The heart of the execution phase is the quantitative analysis of counterparty performance. The following table provides a detailed example of a quantitative scorecard for a set of hypothetical liquidity providers over an annual reporting period. This type of analysis provides the objective evidence needed to rank venues based on actual performance.

Liquidity Provider Total RFQs Received Response Rate (%) Avg. Response Time (ms) Avg. Price Improvement (bps) Fill Ratio (%) Composite Score
LP Alpha 10,500 98% 150 1.25 92% 9.1
LP Beta 12,200 95% 350 0.95 95% 8.5
LP Gamma 8,750 99% 120 0.75 88% 8.2
LP Delta 9,100 85% 500 1.50 90% 7.9
LP Epsilon 11,500 92% 250 1.10 85% 8.4

The ‘Composite Score’ is a firm-specific weighted average of the other metrics, reflecting the firm’s unique priorities. For example, a firm prioritizing speed of execution might assign a higher weight to the ‘Avg. Response Time’ metric. This quantitative approach removes subjectivity from the venue selection process.

Objective data analysis is the mechanism that transforms a best execution policy from a static document into a dynamic and effective operational control.
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What Is the Optimal Workflow for Annual Reporting?

Even with the deprioritization of public RTS 28 reports, producing a similar summary for internal use is a critical governance practice. This annual summary provides a definitive record of the firm’s execution quality analysis. The workflow should be structured to produce a clear, auditable output.

  • Finalize Annual Dataset At the end of the reporting period, a final, immutable dataset of all RFQ transactions should be created. This dataset is the source of truth for the annual report.
  • Generate Final Scorecards Run the quantitative analysis on the final dataset to generate the definitive performance scorecards for all liquidity providers.
  • Rank and Select Top Venues Based on the composite scores and total volume executed, rank the liquidity providers to identify the top five for each class of financial instrument.
  • Compile Summary Report Assemble the final report, including the top-five venue list and a summary of the analysis that was used to arrive at the selection. This summary should explain the relative importance of the different execution factors and how the data supports the firm’s conclusions.

This internal report becomes the primary evidence that the firm is actively and systematically monitoring the quality of its execution, fulfilling its overarching fiduciary and regulatory obligations.

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References

  • Biais, Bruno, Larry Glosten, and Chester Spatt. “Market Microstructure ▴ A Survey of Microfoundations, Empirical Results, and Policy Implications.” Journal of Financial Markets, 2005.
  • Herbst, Jonathan, editor. A Practitioner’s Guide to MiFID II ▴ The Markets in Financial Instruments Directive. 2nd ed. Sweet & Maxwell, 2015.
  • O’Hara, Maureen. Market Microstructure Theory. Blackwell Publishers, 1995.
  • FIX Trading Community. “Recommended Practices for Best Execution Reporting as required by MiFID II RTS 27 & 28.” 2017.
  • European Securities and Markets Authority. “Public Statement on the deprioritisation of supervisory actions on the obligation to publish RTS 28 reports.” ESMA35-335435667-5871, 13 Feb. 2024.
  • Madhavan, Ananth. “Market microstructure ▴ A survey.” Journal of Financial Markets, vol. 3, no. 3, 2000, pp. 205-258.
  • Wah, Elaine, et al. “A Comparison of Execution Quality across US Stock Exchanges.” Global Algorithmic Capital Markets ▴ High Frequency Trading, Dark Pools, and Regulatory Challenges, edited by Walter Mattli, Oxford University Press, 2019.
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Reflection

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From Mandate to Mechanism

The transition away from mandatory RTS 28 reporting presents a pivotal moment for an institution. It prompts a fundamental question about internal motivation. When the external compliance pressure recedes, does the internal commitment to rigorous, evidence-based analysis remain? A firm’s answer to this question defines its operational maturity.

The systems and processes built to satisfy the regulation should not be dismantled; they should be enhanced. They are the core components of a sophisticated execution management system.

The data harvested from RFQ platforms, when analyzed through the disciplined lens of the RTS 28 framework, provides more than a compliance artifact. It offers a clear, unbiased view into the complex network of relationships a firm maintains with its liquidity providers. It quantifies trust, measures performance, and reveals the true cost and quality of execution.

The challenge now is to fully integrate this analytical mechanism into the firm’s decision-making fabric, using it not just to justify past choices but to proactively architect a superior execution strategy for the future. How will your firm use this operational inheritance?

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Glossary

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Rts 28

Meaning ▴ RTS 28 refers to Regulatory Technical Standard 28 under MiFID II, which mandates investment firms and market operators to publish annual reports on the quality of execution of transactions on trading venues and for financial instruments.
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Execution Quality

Meaning ▴ Execution Quality quantifies the efficacy of an order's fill, assessing how closely the achieved trade price aligns with the prevailing market price at submission, alongside consideration for speed, cost, and market impact.
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Best Execution Analysis

Meaning ▴ Best Execution Analysis is the systematic, quantitative evaluation of trade execution quality against predefined benchmarks and prevailing market conditions, designed to ensure an institutional Principal consistently achieves the most favorable outcome reasonably available for their orders in digital asset derivatives markets.
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Market Microstructure

Meaning ▴ Market Microstructure refers to the study of the processes and rules by which securities are traded, focusing on the specific mechanisms of price discovery, order flow dynamics, and transaction costs within a trading venue.
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Liquidity Providers

Meaning ▴ Liquidity Providers are market participants, typically institutional entities or sophisticated trading firms, that facilitate efficient market operations by continuously quoting bid and offer prices for financial instruments.
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Rfq Platform

Meaning ▴ An RFQ Platform is an electronic system engineered to facilitate price discovery and execution for financial instruments, particularly those characterized by lower liquidity or requiring bespoke terms, by enabling an initiator to solicit competitive bids and offers from multiple designated liquidity providers.
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Best Execution

Meaning ▴ Best Execution is the obligation to obtain the most favorable terms reasonably available for a client's order.
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Rfq Platform Data

Meaning ▴ RFQ Platform Data constitutes the structured information payload generated by electronic Request for Quote systems within institutional digital asset derivatives markets.
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Execution Factors

Meaning ▴ Execution Factors are the quantifiable, dynamic variables that directly influence the outcome and quality of a trade execution within institutional digital asset markets.
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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.
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Rfq Data

Meaning ▴ RFQ Data constitutes the comprehensive record of information generated during a Request for Quote process, encompassing all details exchanged between an initiating Principal and responding liquidity providers.
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Liquidity Provider

Meaning ▴ A Liquidity Provider is an entity, typically an institutional firm or professional trading desk, that actively facilitates market efficiency by continuously quoting two-sided prices, both bid and ask, for financial instruments.
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Execution Quality Analysis

Meaning ▴ Execution Quality Analysis is the systematic quantitative evaluation of trading order fulfillment effectiveness against pre-defined benchmarks and market conditions.