Educational only, not tax, legal, or financial advice. Rules vary by broker and situation — verify specifics with your broker or a professional.

Market holidays and half-days shift the options calendar — some days have no 0DTE, and half-days close early. Knowing the schedule around holidays saves you from surprises.

How holidays affect the schedule

On full market holidays, there’s no trading and no expiration — the calendar shifts. On half-days (e.g. the day after Thanksgiving, Christmas Eve, July 3rd), the market closes early (usually 1pm ET), so any 0DTE that day expires at the shortened close, with thinner liquidity. Always confirm whether a given day even has a same-day expiration.

Why it matters

Beyond the timing shift, holiday-adjacent sessions are thin and distorted — wide spreads, warped levels, and compressed time. A 0DTE on a half-day faces accelerated decay into an earlier close. And the days around holidays can carry unusual seasonal behavior. Check the exchange calendar so an early close or missing expiration doesn’t catch you holding.

The options calendar isn’t Monday-to-Friday clockwork around holidays — expirations shift and half-days close early. Check before you trade the week.

What it means for a scalper

Around holidays: verify the schedule, expect thin, distorted tape, and factor the early close into 0DTE decay. Many scalpers simply sit out the worst holiday half-days — low edge, poor liquidity. Know the calendar; trade the good sessions.