Quadruple Witching Days 2025. “quadruple witching” is a unique phenomenon in financial markets where four types of derivative instruments expire simultaneously. Stock options, index options, index futures and single stock futures;

Quadruple witching, the term describing the simultaneous expiration of four distinct types of derivatives contracts—stock index futures, stock index options, stock. 17, 2021 witching session saw nasdaq volume top 7.6 billion shares.