NYSE A/D Line
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McClellan Oscillator
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% Above 20MA
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Tracked universe
Advancers / Decliners
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Today, tracked names
New Highs − Lows
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🏥 Composite Breadth Health
Computing...
📈 A/D Line — cumulative
📉 McClellan Oscillator
% Above 20MA — recent history
New 20-day Highs vs Lows
🧠 How to read breadth
Broad rally (>60% above 50MA)
When breadth is broad, dips get bought. Trend-following works. Add risk on pullbacks.
Narrow rally (mega-cap only)
SPY/QQQ up but %>50MA <40% = leadership only in a few names. Vulnerable. Cut size, watch for rotation or correction.
Negative divergence (price up, breadth down)
Classic warning. New SPY highs without new A/D highs = late-cycle. Reduce, hedge, wait for confirmation either way.