Advance/decline line (A/D) - Financial definition
Financial acronyms
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Concise definition of the term advance/decline line
The advance/decline (A/D) line is a technical indicator that measures the breadth of a market.
Comprehensive definition of the term advance/decline line
When compared to the movement of a market index, the A/D line can confirm the strength of the market trend. It reveals if the movement is sustained by most of the market's stocks.