expiration Friday

expiration Friday definition - business

expiration Friday

The Friday once each quarter when stock index futures, index options, and stock options simultaneously expire. Investors tend to close out positions in futures, options, and stocks on expiration Friday, with the result being extremely volatile prices on this day. See also triple witching hour.

The American Heritage® Dictionary of Business Terms Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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