Quad Witching Day 2025. It captures a flurry of activity sparked by the simultaneous expiration of four types of derivatives. Quadruple witching refers to the simultaneous expiration of stock index futures, stock index options, stock options, and single stock futures derivatives contracts four times a year.

The market opens at 9:30 am and closes at 4:00 pm (eastern. On quadruple witching days, stock.