An option contract that may be exercised only if the price of the underlying asset falls below or rises above a certain, stated barrier. An up-and-in option is often less expensive to buy than another option because of this limitation on exercise. See also: Knock-In Option, Barrier Option.
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An option that comes into being only when the price of the underlying asset reaches a specified value.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.