What is expiration?
The date an option contract ends. After it the contract is worthless unless it finished in the money.
The date an option contract ends. After it the contract is worthless unless it finished in the money.
Expiration, explained
Options are dated — they expire. On the expiration date the contract is settled and ceases to exist; if it didn’t finish in the money it expires worthless. Days to expiry (DTE) counts down to that date, which is why time decay matters more as expiration nears.
Where expiration shows up in a journal
A trading journal is where this stops being a definition and becomes your own number. sizeforzero computes it from the trades you import or log, alongside the rest of your analytics vocabulary, and every figure in the app carries an (i) that explains it in the same plain English you just read.