Triple Witching
a.k.a. Triple witching day
The quarterly day when stock options, stock index options and stock index futures all expire at once,…
In plain English
The quarterly day when stock options, stock index options and stock index futures all expire at once, often bringing heavy trading.
Triple witching happens on the third Friday of March, June, September and December, when three kinds of contracts expire together: stock options, stock index options and stock index futures. Traders rush to close or roll positions, and volume can spike, especially near the close.
It can bring odd price swings in stocks. Forex usually feels it only indirectly, through risk sentiment.
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