Triple Witching Day

In derivatives trading, a “triple witching day” refers to the quarterly date of expiration for three major types of futures and options: index futures, stock options and index options. Additionally, single-stock futures also expire on triple witching days.

Occurring on the third Friday of March, June, September and December, triple witching days usually involve unusually high levels of derivative market activity.

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Editor Daniel Dreier
Daniel Dreier is editor and personal finance expert at moneyland.ch.