triple witching hour

triple witching hour definition - finance
The simultaneous expiration of stock, index, and futures options. The event often creates market volatility, both on the day it occurs and on the days preceding it. A triple witching hour occurs on the third Friday of March, June, September, and December. See also double witching hour.

Webster's New World Finance and Investment Dictionary Copyright © 2003 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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