0DTE (Zero Days to Expiration)
Options that expire the same trading day they are held. Cheap, volatile, and dominated by time decay.
What is 0DTE?
0DTE stands for "zero days to expiration." It refers to options that expire the same trading day they are bought or held. SPY, QQQ, SPX, and a handful of mega-cap single stocks now offer 0DTE options (Mondays, Wednesdays, and Fridays for index products; some stocks on any weekday).
Why they are popular
- Cheap premiums. With only hours left on the contract, premiums are small. A $1 or $2 per share ATM option is common.
- Fast moves. If the underlying breaks a key level, a 0DTE option can double or triple in minutes.
- Defined risk. The most you can lose is the premium paid.
Why they are dangerous
- Theta is brutal. Extrinsic value drains by the minute. A 0DTE option can lose 50 percent of its value in an hour of chop.
- No time to be wrong. If the stock chops or moves against you, there is no "maybe tomorrow." The clock runs out today.
- Gamma risk. Small stock moves cause large option price swings, in both directions.
Who should avoid them
Beginners. Almost always. 0DTE is the closest thing to a casino game that options markets offer. Even experienced traders who use them treat them as small-position, high-conviction bets with a pre-defined exit rule.