Which Volatility Measure Is Used in the Black-Scholes Model?

The Black-Scholes option pricing model uses implied volatility (IV) as an input, or it can be used to derive the IV from the option's market price. While the model requires an estimate of future volatility, in practice, the market price is used to back-solve for the implied volatility.

How Does IV Relate to the Black-Scholes Model for Option Pricing?
What Are the Key Inputs of the Black-Scholes Model for Calculating Implied Volatility?
Explain How Implied Volatility Is Used in Calculating the Required Hedge for Dynamic Hedging
How Is the Bid-Ask Spread Used as a Direct Input in an Options Pricing Model?
What Are the Main Limitations of the Black-Scholes Model?
What Is a Second-Preimage Attack and How Does It Differ from a First-Preimage Attack?
Which Volatility Measure Is Used as an Input in the Black-Scholes Model and Which Is the Output?
What Is the Black-Scholes Model and How Is It Used to Calculate Implied Volatility?

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