Recently, I’ve been following discussions in trading communities and noticed that many people are particularly interested in signals like MACD golden cross. I also want to share my perspective on this indicator because it can indeed help judge market trends, but it’s also easy to fall into traps.

First, let’s talk about the core logic. The MACD golden cross occurs when the fast line crosses above the slow line, which is usually seen as a bullish signal. Conversely, the death cross is when the fast line drops below the slow line, indicating the market may weaken. Many rely on this to make buy and sell decisions, which makes sense to some extent, but the key is how to use it.

I’ve seen many people backtest the S&P 500 from 2010 onward, using only MACD golden cross as buy signals and death cross as sell signals. Over the long term, they can still make money. What does this show? It indicates that on a larger cycle, this signal still has value. But that doesn’t mean you can blindly follow it, because details determine success or failure.

The indicator itself is simple to calculate: the fast line is the difference between the 12-period and 26-period EMAs, the slow line is the 9-period EMA of that difference, and the histogram is the difference between the two. When the fast line crosses above the slow line, the histogram shifts from negative to positive, forming the golden cross. It looks straightforward, but in actual trading, problems arise.

The biggest pitfall is lag. When you see the MACD golden cross form, the market may have already risen for a while, and no one can say how much more it can go up. Also, in sideways markets, the fast and slow lines cross frequently, producing many false signals. I’ve seen too many people believe in these false signals, repeatedly taking losses, and eventually losing all their capital.

So, how to improve? My suggestion is not to look at MACD in isolation. You can add a 99-period EMA as a long-term trend reference. When the price is above the EMA and a golden cross occurs, the credibility of the signal increases significantly. Or combine it with technical analysis, such as a breakout above a key resistance level along with a golden cross, which makes the signal more convincing.

Another often overlooked issue is the position relative to the zero line. A golden cross above the zero line and one below the zero line have different implications. A golden cross above zero indicates the market is already in an uptrend, and this signal is more about trend continuation or acceleration. A golden cross below zero might be a rebound from a weak state. Understanding this helps you better assess the situation.

Ultimately, MACD golden cross and death cross are just auxiliary tools, not a holy grail. I’ve seen too many treat them as guaranteed profit signals, then greedily increase their positions, only to suffer a setback and lose everything. Strict risk management and position control are key to long-term survival. Using multiple indicators, confirming across different timeframes, and trading with small positions for trial and error can help you maximize MACD’s advantages while keeping risks within acceptable limits.