Advance Decline Ratio

Market Analysis

Definition

A market breadth indicator that compares the number of advancing stocks to declining stocks, providing insight into the underlying strength or weakness of market movements beyond major index performance.

Key Points

  • Ratio above 2:1 indicates strong market breadth
  • Divergences can signal market turning points
  • Better measure of market health than price alone

Examples

2000 advancing vs 500 declining = strong breadth
Index rises but A/D ratio weak = narrow leadership