™When reviewing open interest, identify the underlying asset, strike, expiration, premium and whether the position creates a right or an obligation.
Options
Open interest
The number of outstanding derivative contracts that have not been closed, exercised or expired.
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.
Using Open interest 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.