Close Below Lower Bollinger
Close under the lower BB(20,2).
Criteria (as backtested)
| Universe | S&P 500 + Nasdaq 100 (current members) |
| Price | > $5 |
| 20d avg $ volume | > $5M |
| + 1 signal rules | Exact thresholds in Pro |
Backtest · 2021-10-13 → 2026-10-12
How we testEqual-weight trade curve (weekly, 1.0× = start). Each signal held 5 sessions; daily return = mean of open positions. No fees, slippage or taxes. Survivorship-biased universe. Not indicative of future results.
Copyable platform settings PRO
Exact copyable settings are a Pro feature
Exact rules plus TradingView, ThinkorSwim settings for every screen, emailed to Pro members.
Daily Fire Picks: 1-3 highest-confidence setups emailed before the open. Educational, not advice.
Get Pro, $39/moToday's matches · close of 2026-10-12
All screens todayScreen matches for study, not recommendations.
Hit rate by year
Was the edge consistent or one lucky year? First and last years are partial. Compare all screens on the leaderboard.
Most recent signals in backtest
How the Close Below Lower Bollinger screen works
The Close Below Lower Bollinger screen is a mean reversion setup: close under the lower BB(20,2). A stock qualifies on a given day when all 4 rules are true at the close (the exact thresholds are part of Pro). To keep results tradable, only S&P 500 and Nasdaq-100 members above $5 with more than $5M of average daily dollar volume are included.
Across 518 tickers from 2021-10-13 to 2026-10-12, the screen fired 30,739 times on 517 different stocks. 54.4% of signals were higher five sessions later, ranking #5 of 25 screens on SetupHits by hit rate. The average 5-day move was +0.54% (median +0.45%), behind SPY's +0.60% over the same days, and the equal-weight trade curve's worst drawdown was -21.9%.
Pro members get copy-paste TradingView, ThinkorSwim versions of this screen by email. In TradingView use the string in the Stock Screener filter or a Pine condition; in Finviz append the filter codes to the screener URL; in ThinkorSwim paste the thinkScript into a Stock Hacker custom study filter. Platforms compute indicators slightly differently, so expect small differences in the hit list.
Treat these numbers as context, not a forecast. The backtest uses daily bars, ignores commissions and slippage, overlaps signals on the same stock, and tests today's index members back in time, which adds survivorship bias. Dip-buying screens are especially flattered by that bias.
Full test rules: methodology. Compare every setup in our ranked list of stock screeners.
FAQ
What is the Close Below Lower Bollinger stock screener?
Close under the lower BB(20,2). It is a mean reversion screen evaluated on daily closes for S&P 500 and Nasdaq-100 stocks.
What is the Close Below Lower Bollinger backtest hit rate?
54.4% of 30,739 signals between 2021-10-13 and 2026-10-12 closed higher 5 trading days later, with an average 5-day move of +0.54% and a max drawdown of -21.9%.
How do I set up the Close Below Lower Bollinger screen in TradingView, Finviz or ThinkorSwim?
SetupHits Pro ($39/mo) includes the exact TradingView, ThinkorSwim settings, delivered by email. Results can differ slightly because each platform calculates indicators its own way.
Is the Close Below Lower Bollinger screen good for day trading?
It is an end-of-day screen measured over a 5-day hold, so it suits swing trading or building a next-day watchlist more than intraday entries. Past, simulated results do not predict future returns.