What DTE means
DTE is “days to expiration.” A contract's behavior depends heavily on it: longer-dated options move slowly and hold value; short-dated ones are twitchy and decay fast.
When flow clusters in near-term expirations, it often signals urgency — someone positioning for something soon. Long-dated flow is more like a standing bet.
0DTE: options that expire today
0DTE means zero days to expiration — they expire the same session. They're cheap, extremely sensitive to price, and can swing to zero or many multiples in hours. Enormous volume trades in 0DTE, especially on index products.
For a watcher, 0DTE flow is a window into very short-term positioning — and a reminder of how fast options risk moves. We flag 0DTE so you always know the clock you're looking at.
Related terms
- DTE (days to expiration) — Days to expiration. Drives how fast an option decays and how sensitive it is to price.
- 0DTE options — Options that expire the same day. Cheap, extremely sensitive, and fast-decaying.
Put it into practice
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