Quad Witching 2024. 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. Quadruple witching days happen four times a year when four types of financial contracts expire at the same time.

Learn about the concept of quadruple witching and its potential impact on the stock market. The market opens at 9:30 am and closes at 4:00 pm (eastern.