US stock crash signals — today's storm score

The storm score combines several warning signals into one 0-100 number. The higher it is, the more warning signals are on.

This is not a prediction — it is a statistic from past data using fixed rules.

Caution · Storm score 71.0/100

Signal

SignalStatus
Many stocks weaken at onceOnThe share of stocks above their 50-day average fell 22.3 points in 10 days
More stocks hitting 52-week lowsOn4.4% of stocks just hit a new 52-week low
Trading volume jumps suddenlyOnTrading volume is 4.06x higher than usual
Fewer stocks above the 200-day averageOn52.3% of stocks are above their 200-day average
Stocks falling togetherOffStocks are moving in the same direction more than in 90% of the past year (avg correlation 0.07)
Price trend brokenOffThe index is below its 200-day average and swinging 0.71x more than usual
Prices swinging more than usualOffPrices are swinging 0.71x more than usual these days
Fast drop in a short timeOffThe index fell 1.5% in the last 10 days
Fell far from its recent highOffIt is down 2.1% from its recent high
Fear index jumps suddenlyOffThe fear index (VIX) is 6% above its 20-day average
Near-term fear bigger than long-termOffToday's fear index is -3.7 points higher than the 3-month one
Bond market gets nervous firstOffThe gap between corporate and government bond prices shrank 1% in 20 days

How accurate this has been

StageDaysFell 7%+ in 3wkFell 10%+Avg biggest drop
Calm2185.1%3.2%-1.88%
Caution6311.1%3.2%-2.31%
Alert9210.9%6.5%-2.89%
Danger3537.1%14.3%-4.26%

What this system does at each level

Last updated: 2026-09-18

Methodology and validation · Data quality

All figures on this page are statistical information, not investment advice.

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