Bollinger Bands in Crypto: Squeezes, Rides and False Signals
Bollinger Bands measure volatility, not direction. Once you internalise that, they stop giving you bad signals.
What the bands represent
The bands sit two standard deviations above and below a 20-period moving average, so they widen when volatility rises and contract when it falls.
The squeeze precedes the move
When bands contract to unusual tightness, volatility is compressed. It does not tell you direction — only that a bigger move is statistically more likely.
Touching the upper band is not a sell signal
In strong trends price “rides the band” for extended periods. Fading every touch is a reliable way to lose money in a bull market.
%B turns the bands into a number
%B expresses where price sits within the bands as a single value, which makes it far easier to compare across assets or automate.
Timeframes: why the same signal means different things
Timeframe selection is quietly the most consequential setting on any chart. A 5-minute chart is dominated by noise, execution and short-term liquidity. A daily chart shows genuine supply and demand. A weekly chart shows the trend that actually determines multi-year outcomes. None is more correct — but mixing them is how people end up taking a long-term position and managing it on a 15-minute chart.
Match the timeframe to your holding period. If you expect to hold for years, intraday movement is not information you should be acting on, and watching it will only cost you the position. If you are trading a multi-day move, the weekly trend is context rather than a trigger.
A useful convention: use the higher timeframe to decide direction and whether to be involved at all, and the lower one only to choose an entry once that decision is made. Alerts fit this naturally — set them on levels that matter on the higher timeframe, and you stop needing to watch the lower one.
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Frequently asked questions
Is any of this financial advice?
No. Everything here is general educational information about how markets and tools work, not a recommendation to buy or sell anything. Your circumstances, tax position and risk tolerance are specific to you — for decisions that depend on them, speak to a licensed professional in your jurisdiction.
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