Extrinsic Value Erosion

Extrinsic value, also known as time value, is the portion of an option's premium that is not intrinsic value. It represents the potential for the option to increase in value before it expires.

As time passes, this value naturally decays, a process known as erosion. This decay is not linear; it accelerates as the expiration date approaches, making time the enemy of the option buyer and the ally of the option seller.

Extrinsic value is influenced by factors such as time remaining, implied volatility, and interest rates. In crypto, where volatility is often very high, extrinsic value can make up the vast majority of an option's price.

Traders must account for this constant decay when evaluating the cost of holding a long position or the profitability of a short position.