By Kristoff De Turck - reviewed by Aldwin Keppens
Last update: May 21, 2025
(All data & visualisations by ChartMill.com)
U.S. equities paused after a strong rally, with all major indices showing modest pullbacks on the day — a potential breather as they approach key resistance levels.
After a strong run-up in early May, the latest data suggests that market participation is beginning to weaken, a potential warning sign for bulls.
The percentage of advancing stocks dropped sharply to 41.1% on May 20, down from 68.9% just four sessions ago. Decliners have overtaken advancers in three of the last four sessions, highlighting thinning leadership under the surface despite only a mild pullback in the indices.
Visual: Advancing vs. Declining Stocks
A shift from broad-based buying earlier in the month to more defensive posture.
May 12 showed peak participation (75.4% advancers), now cut almost in half.
71.1% of stocks remain above their 50-day SMA.
42.4% remain above the 200-day SMA.
While these numbers are still respectable, they’ve plateaued in recent days. If they begin to turn down, it would signal weakening breadth underneath headline strength.
Visual: % Above 50/200-Day SMAs
A rising trend through mid-May is now stalling. Watch for any crossover or sustained declines in these metrics.
Over the past 3 months:
Only 5.5% of stocks are up more than 25%.
But 10.4% are still down more than 25%, though that number has been declining steadily.
This suggests some healing beneath the surface, but the market is still carrying substantial laggards from the earlier part of the year.
Visual: 3-Month Performance Extremes
Bearish momentum (declines >25%) is easing.
Bullish extremes are inching up — albeit slowly.
While the major indices are holding up, breadth is beginning to diverge and fewer stocks are driving the rally, market participation is waning. This divergence could be an early sign of exhaustion unless broad participation picks up again soon.
Keep a close eye on breadth indicators like advancing volume, new highs/lows, and the percentage of stocks above key moving averages for clues about the market's next move.
Next to read: Market Monitor News, May 21
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