Quadruple Witching Day 2024. Quadruple witching is a quarterly event wherein four sets of derivatives, i.e., stock options, stock index options, single stock futures, and stock index futures, expire. Quadruple witching (quad for short) refers to a date in the stock market when the expiry of single stock option contracts, index futures contracts and index futures.

Stock index futures, stock index options, stock options, and single stock futures. Quadruple witching is a rare derivative expiration event where 4 different derivative types expire on the same day which can lead to volatile price action.