Recently, I’ve been chatting with a few trading partners and found that everyone is a bit confused about adjusting MACD parameters. The standard 12-26-9 has been used for so long, but it sometimes feels too slow in the crypto market. Yet, no one dares to change it randomly, fearing that over-optimizing might lead to even bigger losses.

Actually, I used to think the same way. Later, I realized that there’s no absolute best set of MACD parameters; the key is to find a combination that fits your trading style.

First, let’s talk about why so many people use the default 12-26-9. The fast EMA(12) captures short-term momentum, the slow EMA(26) looks at long-term trends, and the signal line EMA(9) filters out noise. The advantage of this setup is stability; the market consensus is strong, everyone is watching it, and key signals tend to resonate when they appear. But the downside is obvious: in highly volatile markets like crypto, sometimes the response can be a bit sluggish.

So, how should you adjust MACD parameters? I’ve tried several sets. For example, 5-35-5 — this makes the indicator more sensitive, and signals appear more frequently. Backtesting Bitcoin daily charts last year, the 12-26-9 setup gave only 7 clear signals over six months, while 5-35-5 produced 13. Sounds more impressive, right? But in reality, more signals also mean more false alarms. Small fluctuations and false signals can cause you to enter and exit trades frequently, increasing transaction costs and psychological stress.

I also tried 8-17-9, which is between the two, suitable for short-term trading. For medium to long-term investors, 19-39-9 and 24-52-18 are options — larger parameters mean fewer signals but clearer trends. The choice really depends on your trading cycle and style.

Here’s an important pitfall: don’t overfit. I’ve seen many people, during backtesting, tweak MACD parameters to make the data look good, fitting them too closely to past market conditions. The results look perfect in backtests, but once in live trading, they get slapped in the face. Over-optimization is useless; when market conditions change, these parameters become invalid.

My current approach is: first, select a set of parameters, observe long-term, and gather enough samples before deciding whether to adjust. Sometimes, I look at two MACD setups simultaneously — one to confirm the trend, another to filter noise. But this requires some experience; for beginners, it’s safer to start with the standard 12-26-9.

Honestly, MACD parameter adjustment isn’t a magic bullet; it’s just a tool to assist judgment. More importantly, it should be combined with your trading logic and risk management. I now use Gate’s chart tools to quickly switch between different setups, record observations as I go, which has significantly improved my efficiency.

Finally, my advice is: don’t blindly chase perfect parameters. Find a combination that suits you, stick with it, and review and optimize periodically. The process of adjusting MACD parameters itself is a way to improve your trading awareness. No need to rush.