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How Does the Concept of “Volatility Premium” Relate to High Theta?

The volatility premium is the amount by which implied volatility (IV) exceeds realized (historical) volatility. This excess IV contributes directly to the option's extrinsic value.

High Theta is the rapid decay of this extrinsic value. Therefore, the volatility premium is the source of the high Theta, as it represents the extra premium that option sellers collect and that decays over time.

Explain the Difference between Extrinsic and Intrinsic Value in Options
What Happens to Extrinsic Value at Expiration?
What Is the Concept of “Extrinsic Value” and How Does It Relate to ITM Options?
How Does High Volatility Affect the ‘Theta’ of an Option?