Extrinsic value (also called time value) is the component of an option's price that reflects time remaining until expiration and the implied volatility of the underlying stock. It is what option sellers are selling and what option buyers are paying for the "privilege" of having the option.
The formula is: Extrinsic Value = Total Premium − Intrinsic Value. For OTM options, there is zero intrinsic value, so the entire premium is extrinsic value.
Why It Matters for Wheel Traders: Every dollar of extrinsic value you collect when selling an option is a dollar that will decay to zero by expiration (via Theta), assuming the stock does not breach your strike. Your entire income from the wheel strategy comes from capturing extrinsic value decay.
Volatility's Impact: Higher implied volatility inflates extrinsic value. This is why wheel traders seek high-IV environments — more extrinsic value to harvest.
Examples of Extrinsic Value (Time Value) in Action
- 1A $5.00 OTM put option — the entire $500 ($5 × 100) is extrinsic value that can decay to zero by expiration.
- 2An ITM call priced at $7.00 with $4.00 of intrinsic value has $3.00 of extrinsic value.
- 3When IV crushes after earnings, extrinsic value can drop 40-60% overnight — a windfall for the option seller.