I just reviewed something many traders overlook: death cross trading. It’s one of those patterns that sounds complicated but is quite straightforward once you understand it.

Basically, a death cross occurs when the short-term moving average drops below the long-term moving average. It sounds technical, but what it really means is that the market is changing direction. Traders use it to detect when a bullish market might turn bearish.

What’s interesting about death cross trading is that it has a pretty solid track record. This pattern accurately predicted some of the biggest declines: the 2008 crisis, markets of the 70s, and more recently movements in Bitcoin and other assets. It’s not magic, but it works.

The mechanics are simple. When you see the 50-day moving average cross below the 200-day moving average, many consider that a sell signal. Historically, it has been a good indication that a bear market is approaching. If you had exited before some of the biggest crashes of the 20th century using this signal, you would have avoided significant losses.

Now, death cross trading has three clear phases. First, you have a long-term bullish trend. Second, the short-term average drops below the long-term while both are declining. Third, some traders wait for confirmation while others enter immediately. The advantage of not waiting is that you enter or exit earlier. The downside is that you can fall for false signals.

Many use the combination of 50 and 200 days, although some prefer 30 and 100 for quicker confirmations. The important thing is that volume accompanies the signal. A death cross with low volume could just be traders taking profits, but high volume indicates a real trend change.

There’s a detail people criticize: it’s a lagging indicator. The price may have already fallen significantly when the death cross appears. Bitcoin in January 2022 is a good example. The 50-day moving average crossed below the 200-day, and the price had already dropped from $66,000 to under $36,000. The pattern confirmed what was already happening.

To improve this, some traders use a variation where the price itself drops below the 200-day moving average, which happens before the moving averages cross. It also helps to combine death cross trading with other indicators like MACD or trading volume.

The opposite also exists: the golden cross, when the short-term average crosses above the long-term. That’s a bullish signal.

I saw examples in various markets. Tesla showed its first death cross in over two years in mid-2021. The S&P 500 formed one in March 2022, the first in two years. According to data, the S&P 500 has generated 25 death crosses since 1970.

The conclusion is that death cross trading is a useful tool but not perfect. It has a decent track record predicting major declines, but it also produces false signals occasionally. The key is not to use it in isolation. Combine it with volume, other indicators, and market context analysis. It’s another instrument in your technical arsenal, not the absolute truth.