People keep asking me how to set MACD parameters. Honestly, there’s no standard answer because different trading styles require different parameter combinations.

Most people use the default 12-26-9. This set of parameters is indeed stable: the fast line EMA(12) captures short-term momentum, the slow line EMA(26) observes long-term trends, and the signal line EMA(9) filters out noise. Since these are defaults, there’s an invisible “consensus effect” in the market—key signals tend to attract a lot of attention, which is why it’s so widely used.

But if you’re a short-term trader or operating in the highly volatile crypto market, 12-26-9 might be too smooth and slow to react. In that case, you need to consider adjusting MACD parameters. I’ve tried 5-35-5, which is much more sensitive and can catch rising and falling points faster. The downside is more noise and false signals. There’s also 8-17-9, which is intermediate—suitable for 1-hour forex charts or markets with slightly larger fluctuations. If you’re doing medium- to long-term swing trading, 19-39-9 or 24-52-18 tend to be more stable, with fewer signals but higher accuracy.

I once compared Bitcoin’s daily data from the first half of 2025. The 12-26-9 MACD generated 7 clear signals that half-year, with 2 successful golden crosses leading to gains, and 5 failures. Using 5-35-5 doubled the signals to 13, but only 5 of those led to significant rises or falls afterward; the rest were small fluctuations. On April 10, both sets caught the upward move, but the 5-35-5’s death cross appeared earlier, eating into some profits.

A word of caution: many people, after tweaking parameters and seeing decent results, become obsessed with finding the “best parameters.” In reality, different markets and timeframes vary greatly, and a single set of parameters can’t fit all scenarios. Even worse, overfitting occurs when traders tailor parameters too closely to past data just to look good in backtests, only to see real trading blow up.

My advice is to pick a set of parameters that suit your trading habits, backtest thoroughly, and confirm the logic before going live. If recent parameters seem off, try slight adjustments but avoid frequent changes. Beginners should stick with the default 12-26-9 until they get more familiar, then consider tuning MACD. Some traders use two sets of parameters simultaneously to filter noise, which can work but requires stronger judgment.

Ultimately, MACD is just a tool—there’s no perfect parameter, only what fits your trading style. Once you find it, stick with it and don’t get swayed by the market to change every day.