Glossary term
At The Money (ATM)
At the money means an option's strike price is equal to, or very close to, the current market price of the underlying asset.
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What Does At The Money Mean?
At the money, often shortened to ATM, means an option's strike price is equal to, or very close to, the current market price of the underlying asset. The term is used for both call options and put options.
An at-the-money option usually has little or no intrinsic value. Its price is mostly time value, volatility expectation, and the chance that the option will move in the money before expiration.
Key Takeaways
- At the money means the strike price is near the current underlying price.
- An ATM call or put is near the boundary between in-the-money and out-of-the-money.
- ATM options often have significant time value.
- Small moves in the underlying asset can change the option's moneyness.
- ATM options can be sensitive to volatility and time decay.
How ATM Options Work
If a stock trades at $50 and an option has a $50 strike price, that option is at the money. A $50 call gives the buyer the right to buy at $50. A $50 put gives the buyer the right to sell at $50. Because the market price and strike price are aligned, neither option has a clear built-in advantage at that moment.
That can change quickly. If the stock rises, the call may move in the money and the put may move out of the money. If the stock falls, the put may move in the money and the call may move out of the money.
Moneyness Comparison
Term | Call option | Put option |
|---|---|---|
In the money | Stock price is above strike price | Stock price is below strike price |
At the money | Stock price is near strike price | Stock price is near strike price |
Out of the money | Stock price is below strike price | Stock price is above strike price |
What Traders Watch
At-the-money options are often actively traded because they sit near the current market price. They can be useful for directional trades, volatility trades, hedging, and option-spread construction. Their value can change quickly as price, time, and implied volatility move.
The term does not say whether an option is cheap or expensive. It only describes the relationship between the strike price and the underlying price.
The Bottom Line
At the money describes an option whose strike price is near the current price of the underlying asset. It is a moneyness label, not a recommendation, and its practical meaning depends on time to expiration, volatility, and the strategy being used.