Breaking 20-day support after tight range - bearish expansion
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The close-below-20-day-low condition requires the current bar to close beneath the lowest close of the past 20 sessions — a definitive structural breakdown, not a wick. The tightness filter checks that the current 20-day low is within 5% of the 20-day low recorded 11 candles ago, confirming the range was genuinely compressed before the break. Volume above 1.2x the 20-period average validates that the breakdown has participation; without this, a single down day on light volume could trigger the price condition alone.
The value of this screen is its specificity: it only fires after a period of price compression, not on a random down day. A stock in free fall will not match because its 20-day low moves lower continuously. This screen catches stocks that consolidated, suggesting indecision or accumulation, then resolved bearishly. The most dangerous failure mode is a false breakdown: price closes below the 20-day low on the signal day, then reverses and reclaims the level within 1-2 sessions — trapping short sellers. This happens most often when the break coincides with a broad market reversal. Compare to 20-Day Consolidation Breakout for the bull-side equivalent, and Near 52-Week High for broader trend context. New 52-Week High helps confirm whether this breakdown is counter-trend.
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This screen identifies stocks breaking below a 20-day support level after a tight consolidation range — a bearish expansion signal. The prior range tightness (20-day low within 5% of where it was 11 sessions ago) confirms that price has been coiling; a break below that floor with elevated volume signals the coil releasing to the downside. Swing traders and short sellers use it to find low-risk entries after confirmed structure failure. Search phrases: 20-day low breakdown with volume, tight range support break, consolidation failure bearish.
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