Ranks each stock by how tightly price is compressing over the lookback window you pick: the N-day high/low range versus its own last year, Bollinger Band width versus the last 6 months, and short-term ATR versus 50-day ATR. Daily bars through … close · refreshed ….
→ Insider Filings: the largest Form 4 buys and sells, updated each evening
Hover or tab to a column heading for what it measures. Click a heading to sort; click again to reverse.
| Stock | Coil score | Last 90 days · shaded = window | Window range | Range pctile | BBW pctile | ATR14/50 | Squeeze | Vol 10/50 | Trend | Breakout triggers |
|---|---|---|---|---|---|---|---|---|---|---|
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0–100, higher = tighter. 40% N-day range percentile, 35% Bollinger width percentile, 25% ATR contraction. Scores above 80 mean the stock is in the tightest ~15% of its own trading year.
The window high and low are the box edges. A daily close outside the box on expanding volume is the classic coil resolution; the direction is not known in advance, so trend context matters.
Screen, not signal. Coils often break around earnings or macro events; check the calendar before sizing. Data from Yahoo Finance daily bars; not investment advice.