Recently, many people have been asking about the KD indicator, especially regarding divergence signals. To be honest, this topic has been beaten to death in the crypto community, but most people still don’t quite understand what KD divergence actually signifies.

Simply put, divergence occurs when the price and the indicator are moving in opposite directions. Normally, when the price rises, the KD indicator also moves upward. But if the price keeps making new highs while the KD decreases or even drops, that’s called divergence. It sounds simple, but the underlying meaning is quite crucial—it’s telling you that although the price is still climbing, the momentum driving it up is weakening.

When I first started trading, my biggest mistake was buying at golden crosses and selling at death crosses. These crossover signals seem intuitive, but in choppy markets, they are just a breeding ground for false signals. KD divergence is different; it’s a leading indicator that can give you an early warning before a trend reverses. That’s why it’s worth paying attention to.

Determining top divergence and bottom divergence isn’t complicated. Top divergence occurs when the price hits a new high, but the corresponding KD value is lower than the previous high. Conversely, bottom divergence happens when the price hits a new low, but the KD value is higher than the previous low. Both situations suggest that market momentum may be shifting.

But here’s a question—are KD divergences really that accurate? Honestly, not always. I’ve seen many cases where divergence appears, but the market doesn’t reverse—instead, it continues to rally or fall strongly. This mainly happens in strong trending markets, where the KD indicator, due to its calculation method, remains in overbought or oversold zones for a long time. It may look like divergence, but it’s just the indicator becoming less responsive.

This kind of situation is especially common in crypto. Because of high volatility, 24/7 trading, and emotional trading, the failure rate of KD divergence signals is indeed higher than in stock markets. Single divergence signals are not very reliable. My experience is that if you see multiple divergences occurring simultaneously, then the signal is more meaningful.

To improve the success rate of KD divergence signals, there are three key points to remember. First, trade in the direction of the higher timeframe trend. If the daily chart is bullish, the success rate of bottom divergence on the hourly chart is much higher than top divergence, because trend-following is easier than trying to pick tops. Second, where the divergence occurs matters more than the divergence itself. If a top divergence happens near a resistance level, the probability of a decline increases significantly; if a bottom divergence occurs at a support level, the chance of a rebound also rises. Third, check whether the KD indicator itself is already in overbought or oversold territory. A high KD (above 80) indicates a shift from extreme heat to exhaustion, suggesting a stronger reversal potential; a low KD (below 20) indicates a shift from extreme fear to optimism, increasing the likelihood of a rebound.

Someone asked me whether KD divergence or RSI divergence is more accurate. I think each has its own characteristics. KD reacts quickly and is good for capturing short-term fluctuations, but it’s noisy. RSI is more stable, suitable for medium- to long-term analysis, with fewer signals but higher reliability. My approach is to look at both together. If KD and RSI divergence appear simultaneously in the same timeframe, then it’s a signal worth paying attention to.

Finally, I want to say that KD divergence is just a warning light—it tells you there might be risk, but it can’t tell you exactly when it will happen. In real trading, always remember to combine divergence signals with trend direction and key levels. Relying solely on KD divergence for trading can lead to losses over the long run. Multiple signals layered together and technical confirmation are the correct way to approach it.