# The Professional's Method for Selecting the Perfect Protective Put Strike Price ▴ Guide

**Published:** 2025-08-15
**Categories:** Guide

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## Calibrating the Financial Instrument

Selecting a [protective put](https://prime.greeks.live/area/protective-put/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) [strike price](https://prime.greeks.live/guide/strike-price-selection-a-masterclass-in-balancing-cost-and-protection/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) is the definitive act of risk engineering for a sophisticated investor. It transforms a generic hedge into a precision instrument, calibrated to a specific market thesis and risk tolerance. The process begins with the recognition that the strike price itself is the primary control lever, dictating the exact point at which downside protection engages. This decision directly shapes the cost, responsiveness, and ultimate efficacy of the entire position.

A strike set far below the current market price functions as catastrophic insurance, offering a low-cost premium for protection against a severe market dislocation. Conversely, a strike positioned closer to the current price provides a more immediate buffer against smaller fluctuations, demanding a higher premium for its increased sensitivity. This trade-off is the foundational dynamic of every protective put structure.

Understanding this relationship moves the decision from speculation to strategy. The premium paid for the [put option](https://prime.greeks.live/area/put-option/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) is a known, fixed cost ▴ the price of certainty in an uncertain environment. The distance between the current [stock price](https://prime.greeks.live/question/in-what-scenarios-does-tying-compensation-to-operational-metrics-outperform-stock-price-alignment/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) and the chosen strike represents the amount of risk the investor retains, a calculated exposure to market volatility. Professionals view this retained risk not as a liability, but as a component of the strategy itself.

It is the deductible in the insurance policy, consciously chosen to optimize the cost-benefit equation of the hedge. The objective is to secure a floor for the asset’s value without eroding the potential for upside appreciation through excessive premium expenditure. This balance is the first principle of professional hedging.

To achieve this balance, market practitioners rely on quantitative measures of an option’s sensitivity, chief among them being Delta. Delta quantifies the rate of change in an option’s price for every one-dollar movement in the underlying asset. For put options, Delta ranges from 0 to -1.0. A put with a -0.30 Delta will gain approximately $0.30 in value for every $1.00 the underlying stock falls.

This metric provides a clear, objective language for defining the desired responsiveness of the hedge. Choosing a strike based on its Delta allows an investor to predetermine how aggressively the protective put will react to adverse price movements. Mastering the interplay between strike distance, premium cost, and Delta sensitivity is the gateway to deploying protective puts with the precision and confidence of an institutional strategist.

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## The Strategic Execution Methods

Deploying a protective put with professional acumen requires a systematic approach to [strike selection](https://prime.greeks.live/area/strike-selection/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite). The process transcends guesswork, relying instead on a series of distinct, data-driven methodologies. Each method offers a different lens through which to view the market, allowing the strategist to align the hedge with a specific objective, whether it be probabilistic, structural, or financial.

The convergence of these methods provides a robust framework for making a decision that is both defensible and aligned with the overarching portfolio goals. The true art lies in understanding which method to prioritize based on the current market conditions, the specific characteristics of the asset being hedged, and the investor’s unique risk parameters.

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## The Delta Calibration Framework

Delta-based selection is a cornerstone of professional [options trading](https://prime.greeks.live/area/options-trading/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite), offering a quantitative method for defining the hedge’s reactivity. By selecting a strike price based on its Delta, you are choosing a specific level of sensitivity to the underlying asset’s price changes. This transforms the decision from a subjective choice to a precise calibration of the position’s risk dynamics.

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## Targeting Specific Delta Levels

Different Delta levels correspond to different strategic postures. The selection is a deliberate choice about how much of the stock’s downside movement you wish to neutralize from the outset.

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**Low Delta Strikes (-0.15 to -0.30)** ▴ Selecting a put in this range represents a cost-efficient approach. The lower premium reflects the lower probability of the option finishing in-the-money. This is suitable for hedging against sharp, unexpected sell-offs, acting as a form of catastrophic event insurance. The protection is less sensitive to minor price declines, preserving more of the position’s upside potential by minimizing the initial cost.

- 
**Moderate Delta Strikes (-0.30 to -0.50)** ▴ This is often considered the practitioner’s sweet spot, providing a balanced trade-off between the cost of the premium and the degree of protection. A -0.40 Delta put, for example, offers a tangible hedge that becomes increasingly effective as the stock price falls, without the higher cost of an at-the-money option. It is a versatile choice for hedging through uncertain periods like earnings announcements or macroeconomic data releases.

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**High Delta Strikes (-0.50 and higher)** ▴ An at-the-money put will have a Delta around -0.50. Choosing a strike at this level or higher (in-the-money) provides the most immediate and aggressive protection. The combined Delta of the stock (approximately +1.0) and the put (approximately -0.50) results in a net position Delta of around +0.50, effectively halving the position’s sensitivity to small downward price movements. This level of protection comes at the highest cost and is typically reserved for situations where an investor has a strong conviction that a near-term price decline is likely.

> A study of CBOE data reveals that options with deltas between 30 and 50 often exhibit the most liquid markets, providing tighter bid-ask spreads and reducing transactional friction for the strategist.

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## The Technical Inflection Point System

This method anchors the strike price selection to the observable structure of the market. It uses [technical analysis](https://prime.greeks.live/area/technical-analysis/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) to identify price levels that, if breached, would signify a material change in the asset’s trend or momentum. Placing a protective put strike below these levels aligns the hedge with key chart-based indicators, ensuring that the protection engages at a strategically significant point.

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## Identifying Key Structural Levels

The chart of an asset provides a visual record of supply and demand. By identifying critical price zones, a strategist can place a hedge that activates precisely when the bullish thesis is most challenged.

A primary tool for this method is the identification of established [support levels](https://prime.greeks.live/area/support-levels/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite). A support level is a price point where buying interest has historically been strong enough to overcome selling pressure, causing the price to bounce. Selecting a strike price just below a well-defined support level is a logical and powerful strategy. It establishes a clear line ▴ as long as the stock remains above support, the investor participates fully in the upside.

If that critical support level fails, the protective put activates, creating a floor for the position’s value. This is a proactive measure, defining the point of capitulation in advance and removing emotion from the decision-making process during a market decline.

[Moving averages](https://prime.greeks.live/area/moving-averages/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) also serve as dynamic inflection points. For an asset in a long-term uptrend, the 50-day or 100-day moving average often acts as a reliable area of support. Placing a put strike 1-2% below a key moving average provides a technically informed “tripwire” for the hedge.

The breach of such a widely watched indicator often precedes further selling, making it an opportune moment for the protective element of the strategy to take effect. This method ensures the cost of the hedge is only incurred for a technically significant event.

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## The Maximum Tolerable Loss Framework

This approach is the most direct translation of personal risk tolerance into a tangible strike price. It begins with a straightforward and powerful question ▴ What is the maximum percentage or dollar amount I am willing to lose on this position from its current price? The answer to this question directly dictates the strike price of the protective put, creating a completely customized risk parameter for the investment.

For instance, consider an investor holding 100 shares of a stock currently trading at $250 per share, representing a $25,000 position. The investor decides that they are unwilling to risk more than 10% of the current value. This sets a maximum tolerable loss of $2,500, or $25 per share. The calculation is direct ▴ $250 (current price) – $25 (max loss per share) = $225.

The investor would therefore purchase one put option contract with a $225 strike price. The premium paid for this put is the fixed cost of guaranteeing that the loss will not exceed the predetermined 10% threshold during the life of the option. This method removes all ambiguity, creating a precise financial firewall at a level defined entirely by the investor’s own comfort level. It is a disciplined, personal, and highly effective way to engineer a specific risk outcome.

This is where I find many developing traders struggle. They focus exclusively on the potential upside of their [stock position](https://prime.greeks.live/guide/how-to-hedge-your-stock-gains-without-selling-your-position/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite), while giving only a vague nod to the downside. They might say they have a “mental stop-loss,” but we both know how easily those can be abandoned in the heat of a market downdraft. The act of purchasing the put option codifies the risk plan.

It forces a concrete decision. It is the mechanism that imposes discipline when emotional pressure is at its peak. The cost of the premium is the price you pay for that discipline.

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## The Volatility-Adjusted Entry Point

The cost of any option is heavily influenced by [implied volatility](https://prime.greeks.live/area/implied-volatility/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite) (IV). Implied volatility reflects the market’s expectation of future price swings; higher IV leads to more expensive option premiums. A professional strategist understands that the price of protection is not static.

They actively seek to acquire their hedge when it is most favorably priced. This involves analyzing the current level of implied volatility relative to its historical range for that specific asset.

Tools such as IV Rank or IV Percentile are essential for this analysis. These indicators show whether the current IV is high or low compared to its own history (e.g. over the past year). The strategic application is clear ▴ purchase protective puts when IV is in the lower end of its historical range. Buying protection when it is “on sale” significantly improves the overall cost basis of the hedging strategy.

It reduces the drag on performance that the premium cost represents, thereby increasing the position’s net return if the stock continues to appreciate. This proactive timing of the hedge purchase, based on the market price of volatility itself, is a subtle yet powerful edge that separates sophisticated operators from the rest of the market.

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## The Evolution from Static Hedge to Dynamic Strategy

Mastery of the protective put involves moving beyond the concept of a one-time, static insurance policy. It requires viewing the hedge as a dynamic component of the overall portfolio, one that can be adjusted and integrated into more complex structures to achieve superior risk-adjusted returns. This advanced application is about transforming a purely defensive tool into a versatile instrument of portfolio management.

It involves managing the hedge through time, adapting it to changing market conditions, and combining it with other options to create sophisticated risk-reward profiles that are simply unavailable to the uninitiated investor. This is the transition from simply protecting a position to actively managing its risk parameters in real-time.

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## Dynamic Hedge Adjustments

A protective put is not a “set it and forget it” device. As the underlying stock price moves, the characteristics of the hedge change. A significant rally in the stock price will cause the Delta of an out-of-the-money put to decrease, rendering the hedge less effective. The once-protective put may now be too far from the current market price to offer meaningful protection against a sudden reversal.

A professional strategist actively manages this relationship. This can involve “rolling” the hedge ▴ selling the existing put option to recover any remaining time value and purchasing a new put with a higher strike price, closer to the new, higher stock price. This adjustment re-establishes the desired level of protection, locking in a portion of the unrealized gains and recalibrating the hedge to the new market reality. This process of rolling the hedge up and out (to a later expiration) is a core discipline of long-term trend followers who wish to remain in a winning position while continuously managing their downside risk.

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## Integration into Advanced Structures the Collar

The cost of purchasing a protective put can be a significant consideration, creating a drag on the total return of the stock position. One of the most powerful professional techniques to mitigate this cost is the construction of a collar. A collar is created by simultaneously holding the stock, buying a protective put, and selling a covered call option against the same shares.

The premium received from selling the out-of-the-money call option is used to offset, or in some cases completely cover, the cost of purchasing the out-of-the-money put option. This creates what is often called a “zero-cost collar.”

The trade-off is that by selling the call option, the investor agrees to cap the potential upside of their stock position at the strike price of the call. The resulting position has a clearly defined range of outcomes ▴ the maximum loss is limited by the protective put, the maximum gain is limited by the covered call, and the cost of the structure is minimal. This transforms the original investment from a simple long stock position with unlimited upside and significant downside into a structured investment with a known, limited risk and a known, limited reward.

It is an ideal strategy for an investor who is seeking to protect substantial unrealized gains in a stock while generating income and eliminating the cost of the hedge. The selection of both the put and call strikes becomes a nuanced exercise in defining an acceptable profit and loss range for the position over a specific period.

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## The Coded Discipline of Risk

Ultimately, the rigorous selection of a protective put strike is an act of intellectual honesty. It forces an investor to confront and quantify their own tolerance for risk, to define the precise point on a chart where their bullish conviction requires a mechanical safeguard. This process codifies discipline into the portfolio. It replaces the vague intention to “cut losses” with a contractual guarantee, a non-negotiable floor executed with the cold logic of the options market.

The premium spent is not a cost, but an investment in certainty and emotional fortitude, ensuring that a well-reasoned, long-term strategy is never derailed by a short-term moment of panic. This is the final layer of professional execution.

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## Glossary

<a href="https://prime.greeks.live/area/protective-put/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Protective Put

Meaning ▴ A Protective Put is a risk management strategy involving the simultaneous ownership of an underlying asset and the purchase of a put option on that same asset. </a><a href="https://prime.greeks.live/guide/strike-price-selection-a-masterclass-in-balancing-cost-and-protection/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Strike Price

Master strike price selection to balance cost and protection, turning market opinion into a professional-grade trading edge. </a><a href="https://prime.greeks.live/question/in-what-scenarios-does-tying-compensation-to-operational-metrics-outperform-stock-price-alignment/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Stock Price

Tying compensation to operational metrics outperforms stock price when the market signal is disconnected from controllable, long-term value creation. </a><a href="https://prime.greeks.live/area/put-option/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Put Option

Meaning ▴ A Put Option constitutes a derivative contract that confers upon the holder the right, but critically, not the obligation, to sell a specified underlying asset at a predetermined strike price on or before a designated expiration date. </a><a href="https://prime.greeks.live/area/strike-selection/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Strike Selection

Meaning ▴ Strike Selection defines the algorithmic process of identifying and choosing the optimal strike price for an options contract, a critical component within a derivatives trading strategy. </a><a href="https://prime.greeks.live/area/options-trading/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Options Trading

Meaning ▴ Options Trading refers to the financial practice involving derivative contracts that grant the holder the right, but not the obligation, to buy or sell an underlying asset at a predetermined price on or before a specified expiration date. </a><a href="https://prime.greeks.live/area/technical-analysis/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Technical Analysis

Meaning ▴ Technical Analysis is a methodological framework employed to forecast future price movements by systematically examining historical market data, primarily focusing on price action and trading volume. </a><a href="https://prime.greeks.live/area/support-levels/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Support Levels

Meaning ▴ Support Levels define a critical price threshold at which downward momentum for a digital asset is expected to decelerate or reverse due to a discernible increase in buying pressure. </a><a href="https://prime.greeks.live/area/moving-averages/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Moving Averages

Meaning ▴ Moving Averages represent a continuously recalculated average of a financial instrument's price over a specified period, serving as a fundamental statistical tool to smooth price data and identify underlying trends by filtering out transient market noise. </a><a href="https://prime.greeks.live/guide/how-to-hedge-your-stock-gains-without-selling-your-position/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Stock Position

Secure your stock market profits with institutional-grade hedging strategies that shield your assets without selling them. </a><a href="https://prime.greeks.live/area/implied-volatility/?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" class="glossary-item-box">
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## Implied Volatility

Meaning ▴ Implied Volatility quantifies the market's forward expectation of an asset's future price volatility, derived from current options prices. </a>

**Tags:** [Options Trading](https://options.greeks.live/area/options-trading/), [Moving Averages](https://options.greeks.live/area/moving-averages/), [Dynamic Hedging](https://options.greeks.live/area/dynamic-hedging/), [Support Levels](https://options.greeks.live/area/support-levels/), [Strike Selection](https://options.greeks.live/area/strike-selection/), [Implied Volatility](https://options.greeks.live/area/implied-volatility/)	

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- 
### [Why a Collar Strategy Is the Smartest Way to Protect Your Stock Gains](https://options.greeks.live/guide/why-a-collar-strategy-is-the-smartest-way-to-protect-your-stock-gains/)
![An abstract, angular, reflective structure intersects a dark sphere. This visualizes institutional digital asset derivatives and high-fidelity execution via RFQ protocols for block trade and private quotation. It represents liquidity pool access and price discovery within market microstructure on a Prime RFQ.](https://options.greeks.live/wp-content/uploads/2025/07/prime-os-rfq-protocols-for-high-fidelity-digital-asset-execution.jpg)

Define your downside, cap your upside, and structure the protection for a net-zero premium outlay. This is the collar.

- 
### [The Definitive Guide to Engineering Zero-Cost Portfolio Protection](https://options.greeks.live/guide/the-definitive-guide-to-engineering-zero-cost-portfolio-protection/)
![Two abstract, polished components, diagonally split, reveal internal translucent blue-green fluid structures. This visually represents the Principal's Operational Framework for Institutional Grade Digital Asset Derivatives. It illustrates dynamic Liquidity Pool management, High-Fidelity Execution via RFQ protocols, and the intricate Market Microstructure driving Price Discovery and Atomic Settlement.](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-rfq-execution-prime-os-liquidity-framework.jpg)

Engineer portfolio immunity by defining your risk parameters with zero-cost options structures.

- 
### [Using Options to Build a Resilient All-Weather Portfolio](https://options.greeks.live/guide/using-options-to-build-a-resilient-all-weather-portfolio/)
![Precision instruments, resembling calibration tools, intersect over a central geared mechanism. This metaphor illustrates the intricate market microstructure and price discovery for institutional digital asset derivatives. It highlights the analytical rigor of RFQ protocols ensuring high-fidelity execution and capital efficiency across dark pools.](https://options.greeks.live/wp-content/uploads/2025/07/institutional-digital-asset-rfq-execution-engine-microstructure-analytics.jpg)

Build a resilient, all-weather portfolio by using options to precisely define risk, generate income, and prepare for any market.

- 
### [Build a Financial Firewall for Your Stock Portfolio](https://options.greeks.live/guide/build-a-financial-firewall-for-your-stock-portfolio/)
![Precision-engineered multi-vane system with opaque, reflective, and translucent teal blades. This visualizes Institutional Grade Digital Asset Derivatives Market Microstructure, driving High-Fidelity Execution via RFQ protocols, optimizing Liquidity Pool aggregation, and Multi-Leg Spread management on a Prime RFQ.](https://options.greeks.live/wp-content/uploads/2025/07/precision-engineered-multi-vane-system-illustrating-institutional-digital-asset-derivatives-rfq-protocols-market-microstructure-optimized-liquidity-aggregation-prime-os-high-fidelity-execution.jpg)

Stop reacting to market drops. Start commanding your portfolio's risk parameters with an engineered financial firewall.

- 
### [The Institutional Guide to Zero-Cost Asset Protection](https://options.greeks.live/guide/the-institutional-guide-to-zero-cost-asset-protection/)
![A refined object, dark blue and beige, symbolizes an institutional-grade RFQ platform. Its metallic base with a central sensor embodies the Prime RFQ Intelligence Layer, enabling High-Fidelity Execution, Price Discovery, and efficient Liquidity Pool access for Digital Asset Derivatives within Market Microstructure.](https://options.greeks.live/wp-content/uploads/2025/08/prime-os-rfq-protocols-for-digital-asset-derivatives-execution.jpg)

The Institutional Guide to Zero-Cost Asset Protection: Engineer a financial firewall around your assets.

- 
### [The Investor’s Guide to Locking in Gains with Protective Puts](https://options.greeks.live/guide/the-investors-guide-to-locking-in-gains-with-protective-puts/)
![A sleek, multi-component mechanism features a light upper segment meeting a darker, textured lower part. A diagonal bar pivots on a circular sensor, signifying High-Fidelity Execution and Price Discovery via RFQ Protocols for Digital Asset Derivatives. This Market Microstructure detail highlights Atomic Settlement capabilities and Capital Efficiency within a Principal's Operational Framework.](https://options.greeks.live/wp-content/uploads/2025/07/precision-engineered-institutional-digital-asset-derivatives-rfq-execution-microstructure-for-optimal-price-discovery-and-atomic-settlement-with-prime-os-integration.jpg)

Lock in your gains and define your downside with the precision of a professional grade protective put strategy.

- 
### [The Reason Professionals Use Collars to Manage Bitcoin Risk](https://options.greeks.live/guide/the-reason-professionals-use-collars-to-manage-bitcoin-risk/)
![Intersecting abstract geometric planes depict institutional grade RFQ protocols and market microstructure. Speckled surfaces reflect complex order book dynamics and implied volatility, while smooth planes represent high-fidelity execution channels and private quotation systems for digital asset derivatives within a Prime RFQ.](https://options.greeks.live/wp-content/uploads/2025/07/institutional-rfq-protocols-digital-asset-microstructure-execution.jpg)

Professionals use collars to define Bitcoin's price risk, transforming volatility into a structured and predictable outcome.

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---

**Original URL:** https://options.greeks.live/guide/the-professionals-method-for-selecting-the-perfect-protective-put-strike-price/
