Recently, I’ve been researching MACD parameter adjustments, and I found that many traders actually have misconceptions about indicator settings. Today, I’d like to share some practical ideas.

First, let’s talk about the default 12-26-9. This set of parameters is indeed the most widely used, and the reason is simple—it’s stable enough. The fast line EMA (12) captures short-term momentum, the slow line EMA (26) reflects the long-term trend, and the signal line EMA (9) filters out noise. Because so many people use this set, the market forms a kind of consensus effect: at key signals, it can attract more attention and, in turn, increases its reference value. But the problem is that for a high-volatility market like crypto, sometimes 12-26-9 can be too smooth—especially for short-term traders, who often can’t catch those fast turning points.

This is also why many people start trying MACD parameter adjustments. I’ve seen plenty of traders use 5-35-5, and the reaction speed is indeed much faster, allowing them to capture the moments of rising and falling more sensitively. But the trade-off is that there’s more noise: signals show up more frequently, but the failure rate is also higher. There’s also 8-17-9, which is suitable for the forex 1-hour chart; 19-39-9 is more geared toward medium-to-long weekly cycles; and 24-52-18 is for long-term investors. The higher the sensitivity, the more signals you get—but reliability declines. The lower the sensitivity, the more stable it is, but opportunities are also easier to miss.

I personally backtested Bitcoin’s data from the first half of last year. Using 12-26-9, I caught 7 clear signals in half a year—2 of which rose after golden crosses as expected, while 5 failed. When switching to 5-35-5, the number of signals doubled to 13, but the subsequent rise-and-fall magnitudes were generally smaller, and sometimes the moment a signal appeared, it reversed immediately. In the rally in April, both parameter sets caught the turning point, but the death cross with 5-35-5 arrived earlier, resulting in comparatively worse profits.

There’s one very important pitfall to avoid here—overfitting. Many people adjust parameters and then find that the backtest data looks especially good, so they think they’ve found the holy grail. In reality, they’re just writing the exam paper using the answers. Adjusting parameters by looking at past charts can easily lead to distortion in live trading, and the strategy simply won’t work in the future.

My suggestion is that MACD parameter adjustments should be determined based on your trading style and the market characteristics. Beginners should stick with 12-26-9 honestly and observe without rushing to change it. Short-term traders can try 5-35-5 or 8-17-9, but you must backtest first to confirm whether they truly match your entry and exit logic. Once you select a parameter set, it’s best to use it over the long term and avoid frequent switching—otherwise, MACD can end up becoming a stumbling block in your analysis.

Someone asks whether it’s possible to use multiple MACD sets at the same time. You can, but signals will increase, making judgment harder, and it requires a fairly strong decision-making ability. Overall, there’s no single “best” MACD parameter setting—only the one that best fits your trading habits at the moment. If the default 12-26-9 really doesn’t work, then seriously backtest several options, find the set that matches your strategy, and apply it to live trading with caution. Remember to keep reviewing and conducting post-trade analysis, and watch for signs of overfitting—this is how you can truly make good use of MACD.