breadth

Market breadth analysis measures advance-decline balance and stock participation to determine if a market move is broad-based or narrow. It uses daily counts of advancing, declining, and unchanged issues alongside active listings to evaluate sentiment.

To check if a rally is broad-based, analyze market breadth data over a selected number of days. Compare advancing issues against declining ones and review average price movements to see if participation is broad, narrow, or diverging from the trend.

Yes, market breadth scans apply to both US and CN markets. You select the market and a date range, then the analysis requires daily counts of advances, declines, unchanged issues, active listings, average return, and standard deviation to measure sentiment.

To measure advance-decline balance and market sentiment, you need daily counts of advancing, declining, and unchanged stocks, active listings, average return, standard deviation, and advance rate over your selected scan period.

Market breadth data identifies divergence by comparing the breadth trend against overall market movement. If a market rally shows narrow participation with declining advance rates, it signals a bearish divergence, whereas broad participation confirms bullish sentiment.

You should not rely on market breadth alone when daily counts of active listings are incomplete or when the selected scan period is too short to establish a meaningful advance-decline trend, as this limits the accuracy of divergence and sentiment checks.