Corporate events & settlement
How do Triple Witching and Quadruple Witching hours impact institutional options volume and delivery dynamics?
By Easy Money Scanner · Educational reference · Not investment advice
The short answer
Triple witching (quarterly simultaneous expiration of stock options, index options, and index futures) and quadruple witching (adding single-stock futures) create spikes in trading volume and volatility as institutions roll or unwind large hedge positions.
How it works
Index rebalancing orders, large institutional hedge rolls, and arbitrage closing trades concentrate heavily into the final hour of these sessions, historically producing elevated volume on major exchanges.
An example
Quadruple witching Fridays in March, June, September, and December regularly rank among the highest equity volume days of the year on US exchanges.
Risk & limitations
Increased volatility and wider spreads near the closing auction on witching days can cause unexpected slippage for market orders placed late in the session.
Examples are hypothetical, not trade recommendations. US contract and regulatory references do not automatically apply in Canada. Rules, margin requirements and broker policies can change; confirm them with the relevant authority and your broker.