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Course · Act I: Read the Chain · Act I case study

Reading a 0DTE options chain

Case: a same-day chain at 3pm. Price a nickel call against a defined-risk spread, and see what the stock must do before the close.

Key terms

0DTE
Zero days to expiration. The contract dies today, so extrinsic value has almost no time left.
Breakeven
The stock price at expiration where the trade neither makes nor loses money. For a long call: strike plus premium.

“Friday, 0DTE” is part of the full course: 6 puzzles on reading a 0dte options chain. RocketCo is fictional, and none of this is a trade. Try this act’s free chapter, “Calls, Puts, and the Contract”, first.

Play the free chapter →See the course