Options

At the money (ATM)

An option whose strike price is near the current price of the underlying asset.

Plain-English context

Why it matters

Options terms can change the payoff, obligation and sensitivity of a contract. Small misunderstandings can create materially different risk.

EXAMPLE

When reviewing at the money (atm), identify the underlying asset, strike, expiration, premium and whether the position creates a right or an obligation.

COMMON MISTAKE

Using At the money (ATM) without checking contract terms, liquidity and the full maximum-gain and maximum-loss profile.

Use current definitions. Product terms, tax treatment and market rules can change. Confirm important details with official disclosures, regulators and regulated providers.