Bollinger Band breakouts in crypto: what happened next
Jordan Ellis
Senior Product Marketing Manager, CoinBeacon
A candle that closes outside its Bollinger Bands is read two opposite ways: as a breakout that will keep going, or as a move stretched too far that will come back. This is what crypto prices actually did after each, across about 800 coins on five exchanges over six months, measured from CoinBeacon’s Indicator Edge.
What was measured
Bollinger Bands draw a line two standard deviations above and below a coin’s average close over the last 20 candles. When prices swing more, the bands move apart; when trading calms down, they close in. Indicator Edge records a signal when a candle closes outside a band after the candle before it closed inside: below the lower band, or above the upper band.
For every signal it records where the price closed a set time later, against the close of the candle that fired. The first tables use the 4-hour chart and the close seven days later, for signals from 18 April to 8 October 2026 on Binance spot and the Binance, Bybit, OKX and Gate.io perpetual futures.
- A run outside the band is one signal. A close outside counts only when the candle before closed inside, and a repeat within five candles of the last one is not counted, so a coin that rides the band for a day is one signal, not six.
- Each exchange counts separately. A coin listed on three of the five exchanges can fire three times on the same candle. The tables count signals, with the number of different coins beside them.
- The median, not the average. Half the signals ended above the median and half below it, so one coin that doubled cannot drag it the way it would an average.
Every figure sits next to an ordinary week for the same coins: the move over seven days from any 4-hour candle, outside the bands or not. In these months most weeks ended lower, so a fall after a signal means little until it is set against that.
The tables also split each signal by volume. Indicator Edge measures every signal on its own, so for this guide each Bollinger signal was matched with Indicator Edge’s volume spike signal, a candle trading more than three times its recent average, on the same candle, coin and exchange.
Breakout or stretch?
Read as a breakout, a close above the upper band shows buyers pushing past the recent range, and a close below the lower band shows sellers doing the same. CoinBeacon’s Bollinger alert follows this reading: it labels a break above the upper band bullish and a break below the lower band bearish.
Read as a stretch, the close has run unusually far from its average and tends to drift back. Indicator Edge follows this reading: pick the upper band there and its ranking opens on Top drops. Both labels describe the candle. What followed it is below.
After a close below the lower band
| Signal | Signals (coins) | Median move | Ended higher |
|---|---|---|---|
| Every close below the lower band | 48,086 (796) | −0.93% | 45.4% |
| With a volume spike on the same candle | 4,198 (648) | −1.42% | 42.5% |
| Without a volume spike | 43,888 (790) | −0.88% | 45.7% |
| An ordinary week | every candle | −1.04% | 45.1% |
Over a week, a close below the lower band looked almost exactly like an ordinary week for these coins: a median fall of 0.93% against 1.04%, and 45.4% of signals ending higher against 45.1%.
Over shorter windows it was followed by slightly better days than usual. The next day ended with a median of +0.09% and 51.2% of signals higher, against −0.23% and 46.9% for an ordinary day. After three days it was +0.32% and 52.7%, against −0.62% and 45.4%. By the end of the week the difference had gone.
When the same candle also traded more than three times its usual volume, which fewer than one in ten of these closes did, the week that followed was weaker than an ordinary one: a median fall of 1.42%, with 42.5% ending higher.
After a close above the upper band
| Signal | Signals (coins) | Median move | Ended higher |
|---|---|---|---|
| Every close above the upper band | 49,637 (785) | −1.80% | 42.6% |
| With a volume spike on the same candle | 9,834 (711) | −2.75% | 39.5% |
| Without a volume spike | 39,803 (774) | −1.55% | 43.4% |
| An ordinary week | every candle | −1.04% | 45.1% |
A close above the upper band was followed by a weaker week than usual: a median fall of 1.80% against 1.04%, with 42.6% of signals ending higher against 45.1%. The shorter windows were weaker too: −0.66% with 41.8% higher after one day, against −0.23% and 46.9% for an ordinary day, and −0.96% with 43.5% higher after three days, against −0.62% and 45.4%.
A common rule of thumb says volume confirms a breakout. In these six months, the closes above the upper band that came with a volume spike were followed by the weakest weeks in either table: a median fall of 2.75%, with only 39.5% ending the week higher.
On the daily and hourly charts
The same signals on other charts gave a different picture, which is a reason to check the chart you actually trade.
| Signal | Signals (coins) | Median move | Ended higher |
|---|---|---|---|
| Every close below the lower band | 6,095 (591) | −1.47% | 43.2% |
| Every close above the upper band | 8,264 (620) | −1.62% | 44.0% |
| Above, with a volume spike | 2,114 (472) | −4.28% | 36.8% |
| Above, without a volume spike | 6,150 (596) | −0.78% | 46.5% |
| An ordinary week | every candle | −2.00% | 42.3% |
On the daily chart, both bands were followed by slightly better weeks than the ordinary one, which here is measured over a longer stretch of history than the signals and is a looser yardstick. The split by volume was sharper than on the 4-hour chart: a daily close above the upper band on a volume spike was followed by a median fall of 4.28%, with 36.8% higher, against −0.78% and 46.5% without one. Below the lower band, only 243 daily closes on 105 coins came with a volume spike, a sample small enough for one market-wide move to decide.
The hourly signals start on 23 June 2026, so they cover a shorter stretch, measured over the following day. After a close below the lower band the next day had a median of +0.20%, with 52.7% higher, and +0.63% with 56.9% higher when the close came on a volume spike, against +0.03% and 50.2% for an ordinary day. After a close above the upper band it was −0.39% with 44.6% higher, and −0.79% with 41.0% on a volume spike.
How to read these numbers
- They describe one stretch of market. April to October 2026, for coins whose ordinary week ended lower more often than higher. In a rising market every row would move, the ordinary week included.
- Signals arrive in crowds. When the whole market drops, hundreds of coins close below their lower band on the same candle. On the 4-hour candle that closed at 16:00 UTC on 8 October, 354 coins did, for 1,309 signals across the five exchanges, and the week after it is one market event counted over a thousand times.
- Only coins still listed are measured. Indicator Edge reads the pairs each exchange lists today, so coins delisted during these months are missing, which flatters the figures.
- A median hides the spread. Half the signals did better than the median and half did worse, often by a wide margin. Indicator Edge shows each coin’s range.
- The past is not a forecast. These are measurements of what followed, not a rule that it will happen again, and none of it is advice to buy or sell.
Look up a coin in Indicator Edge
Indicator Edge, under Screeners in the app, runs the same measurement for each coin separately and ranks them.
- Pick the signal. Choose Close broke below the lower Bollinger band, or Close broke above the upper Bollinger band, in the Signal menu.
- Set the chart, the outcome and the history. Chart timeframe 4h, Outcome window 7d and History 180d match the first two tables. The page opens on 90 days.
- Read the ranking. Each coin’s Edge is its median move after the signal minus its own ordinary move over the same window. Win rate is the share of signals that ended higher, and coins with fewer than 20 independent signals are marked as a small sample.
Signed out, you see the top 20 coins for any setting. A free account opens the full board and lists every firing behind a row, with its date, entry price, outcome and a chart. The RSI guide explains the board in more detail.
Get an alert on a band breakout
A Bollinger alert watches one coin and messages you when its close breaks out of its Bollinger Bands (20, 2).
- Pick the coin and the chart. Search the coin, choose the exchange, and pick a timeframe from 1 minute to 4 hours.
- Choose Band breakout and a direction. Upper band (bullish) or Lower band (bearish). The words name the direction of the break, not what follows it.
- Pick where it reaches you. Email, Telegram, Discord or a webhook. The channels guide shows how to connect each one.
The alert checks every minute and reads the newest candle, which on charts from 3 minutes to 4 hours is the one still forming, so it can fire on a break that the close later undoes; Indicator Edge counts only closed candles. It fires at most once per candle, and a run of closes outside the band alerts once. Its other mode, Squeeze, fires when the bands are at their narrowest in 50 candles; Indicator Edge does not measure squeezes, so this guide has no figures for them. To watch every coin on an exchange instead of one, use Scan all coins with Bollinger.
For volume on its own, see what happened after crypto volume spikes.
