A-D
Definition
Advance-Decline, or measurement of the number of issues trading above their previous closing prices less the number trading below their previous closing prices over a particular period. As a technical measure of market breadth, the steepness of the AD line indicates whether a strong bull or bear market is under way.
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Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University
Term of the Day
Market check
An investigation typically conducted by an investment banking firm, on behalf of a target's Board of Directors (or Special Committee) as part of a process to determine whether a proposed price for... Read More
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