Recently, I’ve noticed that many traders share a common dilemma when adjusting MACD parameters: they don’t know which set of numbers to use. In fact, this issue reflects the eternal challenge of MACD parameter optimization. It sounds simple, but finding the right settings that suit you isn’t that easy.

Let’s start with the basics. The standard MACD (12-26-9) is well-known: the fast line uses EMA(12) to capture short-term momentum, the slow line uses EMA(26) to observe long-term trends, and the signal line is EMA(9). This set of parameters is widely used because of its stability and because most market participants are using it, creating a consensus effect. But that doesn’t mean it’s the best fit for everyone.

From my experience, the cryptocurrency market is highly volatile, and the standard parameters sometimes respond a bit slowly. So many short-term traders switch to MACD (5-35-5), which is much more sensitive and can catch upswings and downturns more quickly. The downside is that it also produces more noise, and signals can become unreliable. Others use MACD (8-17-9) as a compromise, or MACD (19-39-9) to filter out most noise. Each set of parameters has its own rhythm; it depends on which style of trading suits you best.

I previously did a comparison using both MACD (12-26-9) and MACD (5-35-5) on Bitcoin’s daily chart. In the first half of 2025, the 12-26-9 showed 7 clear signals: 2 successful golden crosses that led to upward moves, and 5 that failed. The 5-35-5 generated nearly twice as many signals—13 in total—but the success rate was lower, with more small rises and falls. Notably, during the upward surge on April 10, both sets caught the move, but the death cross on 5-35-5 appeared earlier, which meant some profit was lost.

This highlights the core contradiction in MACD parameter optimization: higher sensitivity can catch more opportunities but also produces more false signals; lower sensitivity is more stable and reliable but risks missing out on opportunities. There’s no perfect solution—only what works best for you.

My advice for beginners is to start with the default 12-26-9 and observe for a while to understand the market’s temperament. If you find this set can’t effectively guide your decisions, then adjust according to your trading cycle. For short-term trading, try 5-35-5 or 8-17-9; for medium- to long-term, consider 19-39-9 or 24-52-18. But always backtest after making adjustments to see if the parameters perform well historically and align with your trading logic.

A particularly important pitfall to avoid is overfitting. Some people deliberately tune MACD parameters to fit past data perfectly, making the signals look ideal on backtests. But in live trading, this often leads to losses. MACD parameter optimization isn’t about finding the perfect numbers; it’s about finding settings that can adapt to market changes over time.

My approach is to select a set of parameters and observe long-term performance without frequent changes. If recent results are poor, consider slight adjustments. Some traders also use two MACD setups simultaneously to verify signals, which can be effective but requires stronger judgment.

In essence, there’s no “best” MACD parameter—only the one that best fits your current trading style. Instead of obsessing over finding the perfect MACD settings, focus on understanding the logic behind the parameters and continuously adjust based on market feedback. Technical indicators are just tools; the real skill lies in your trading strategy and risk management.