Divergence: when price and indicator part ways
If price makes a new low while the indicator makes a higher low, selling strength may be fading; this is called divergence. It is a warning, not a signal on its own.
In the chart above you will see two lines: one over the price candles and one in the indicator panel below (RSI or MACD — whichever the divergence was found on). Both connect the same two points, but their slopes point in opposite directions. That is a divergence.
In a bullish divergence, price makes a new low below its previous low, but the indicator (for example RSI) at the same point stays above its previous low. Price says ‘I fell even further’, while the indicator says ‘the strength of the fall has decreased’. Green lines show a bullish divergence. A bearish divergence is the opposite: price makes a higher high while RSI makes a lower high; this is drawn in red.
Why does it matter? Because indicators measure the speed of price. A drop in speed while price still moves in the same direction can say the move is getting tired, like a runner's steps getting shorter at the end of a long race.
But this is a warning, not an order. A tired move sometimes turns, sometimes just slows down and continues in the same direction, and sometimes produces a new divergence and keeps falling. Look at what price did after the lines on the chart: did the turn come right after the divergence, or did it wait a while longer?
How to read it
- Find the two lows (or two highs) on both price and the indicator and compare their slopes: if price slopes down and the indicator slopes up, there is a bullish divergence.
- Look at where the divergence forms: a bullish divergence at an important support or in RSI's zone below 30 is more meaningful.
- Wait for confirmation: after the divergence, price breaking above the previous small high or making a strong reversal candle moves the warning closer to a signal.
- Put the stop below the last low of the divergence: if price breaks that low, the divergence has failed.
We measured
On BIST's 1-hour chart, adding a classic bullish divergence condition did not improve results, it made them worse: turning points with a divergence returned less than plain turning points without one. On the 4-hour and daily charts the effect pointed in a positive direction, but it was not consistent across the two halves of the measurement period; in other words, there was no evidence. That is why we do not make divergence the main trigger in our own tools.
Source: BBL Pine measurement: BIST, 1 hour / 4 hour / 1 day, against a control group, two period halves ·
Trap
The most common mistake is treating every divergence as a reversal signal and entering early. In strong declines two or three divergences can form one after another, and price falls a little more each time. Our measurement supports this: on a short time frame, divergence alone made results worse. The second mistake is forcing the points to draw a divergence; if the two lows are not clear, there is no divergence either.
Tip
The evidence scene on the analysis card finds divergences automatically and draws them on both panels together. When you tap the divergence layer on the card, the other evidence fades, so you can focus on just these two lines.
Glossary
- Bullish divergence
- Price making a lower low while the indicator makes a higher low.
- Bearish divergence
- Price making a higher high while the indicator makes a lower high.
- Confirmation
- Price also giving a sign in the same direction after the warning; for example breaking above the previous small high.
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Look for divergence evidence in an analysis →For information only, not investment advice.