Business and Personal Finance Dictionary

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 

• A-D
  
  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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