Moneyness¶
OVERVIEW¶
Moneyness describes the relationship between an option's strike price and the current market price of the underlying asset, determining whether the option possesses intrinsic value. It is a foundational concept in options pricing that directly dictates intrinsic value and heavily influences extrinsic value, time decay, and sensitivity to underlying price movements.
Options are categorized into three states based on this metric:
| State | Abbreviation | Intrinsic Value |
|---|---|---|
| In-The-Money | ITM | Greater than zero |
| At-The-Money | ATM | Zero |
| Out-Of-The-Money | OTM | Zero |
Note
Quantitative traders also express moneyness as a continuous variable using the ratio of the underlying spot price to the strike price (S/K), or the logarithm of this ratio. An option is considered at-the-money when the logarithmic ratio equals zero.
CALCULATION¶
Moneyness and intrinsic value are calculated differently for calls and puts.
Call Options¶
| State | Condition | Intrinsic Value |
|---|---|---|
| ITM | Underlying Price > Strike Price | Underlying Price − Strike Price |
| ATM | Underlying Price = Strike Price | 0 |
| OTM | Underlying Price < Strike Price | 0 |
Put Options¶
| State | Condition | Intrinsic Value |
|---|---|---|
| ITM | Underlying Price < Strike Price | Strike Price − Underlying Price |
| ATM | Underlying Price = Strike Price | 0 |
| OTM | Underlying Price > Strike Price | 0 |
WORKED EXAMPLE¶
Assume AAPL is trading at $190. The table below evaluates four options contracts:
| Contract | Strike | Moneyness | State | Intrinsic Value | Premium Notes |
|---|---|---|---|---|---|
| 165 Call | $165 | $25 ITM | ITM | $25.00 | Premium is at least $25 |
| 190 Call | $190 | At parity | ATM | $0.00 | Premium is entirely extrinsic value |
| 210 Call | $210 | $20 OTM | OTM | $0.00 | Premium derived from time and volatility only |
| 210 Put | $210 | $20 ITM | ITM | $20.00 | Premium is at least $20 |
HOW TO USE¶
Traders apply moneyness to structure trades based on directional conviction and risk tolerance.
ITM Options
- Carry higher deltas, moving more closely with the underlying asset
- Require less extrinsic value premium to reach break-even
- Preferred when seeking reliable directional exposure
OTM Options
- Require significant underlying movement to overcome the lack of intrinsic value
- Favored when seeking high leverage with low capital outlay
- Highly sensitive to time decay (theta) and implied volatility contraction
Quantitative and Market-Making Applications
- Moneyness is used to standardize volatility smiles and skew charts across different expirations and strikes
- Enables comparison of options pricing behavior independent of the absolute price level of the underlying
Tip
Use moneyness alongside delta when sizing positions. A deep ITM option with a delta near 1.0 behaves similarly to holding the underlying asset directly, while a far OTM option with a delta near 0.05 provides lottery-style exposure.
LIMITATIONS AND COMMON MISCONCEPTIONS¶
Note
ITM does not mean profitable. An ITM option still requires the underlying price to move favorably enough to recover the extrinsic value paid as part of the total premium.
Note
OTM options are not cheap. Despite low premiums in absolute terms, OTM options carry a high probability of expiring worthless and are acutely sensitive to both time decay and drops in implied volatility.
Moneyness alone does not determine profitability. The decisive factor is the speed of the underlying price movement relative to time decay eroding the option's extrinsic value.