What Is the Practical Difference between Theta and the Implied Volatility of an Option?

Theta is a measure of the rate of time decay, representing the loss in an option's value per day. Implied Volatility (IV) is an input into the option pricing model, representing the market's expectation of the underlying asset's future price fluctuations.

High IV increases an option's price, but that higher price will decay faster (higher Theta). Theta is a derivative of the price, while IV is an input.

Which Greek Measures the Rate of Time Decay?
How Is Implied Volatility Different from Historical Volatility?
How Does the Concept of “Time Value” Relate to the Uncertainty of Future Price Movement?
What Is the Difference between Historical Volatility and Implied Volatility?
Which Greek Letter Measures the Rate of Time Decay?
What Is the Key Difference between Realized Volatility and Implied Volatility in Financial Derivatives?
How Is ‘Historical Volatility’ Different from ‘Implied Volatility’ in the Context of Options Trading?
How Does the Time Decay (‘theta’) Affect Option Prices?

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