quadruple witching hour


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Related to quadruple witching hour: triple witching hour, Triple Witching Day

quadruple witching hour

n.
The hour before the closing of the stock market on the third Friday of March, June, September, or December, when stock index options, stock index futures, stock options, and single stock futures expire, known for its high trading volume and volatile prices.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
"It's quadruple witching hour,'' said Joe "JJ'' Kinahan, chief strategist at TD Ameritrade Holding Corp.