Recently studying technical analysis, I found that the DMI indicator is actually more practical than I thought. This indicator was developed by Wilder in 1978, used to determine the strength of market trends. Today, I want to share my understanding with everyone.

The DMI indicator consists of three lines, with +DI and -DI representing the strength of upward and downward movements respectively, and ADX measuring the overall trend strength. Simply put, when ADX exceeds 25, the market has a clear direction; below 25 indicates consolidation, with no significant trend.

I think the most practical aspects of DMI are threefold. First is assessing trend strength; a high or low ADX value clearly shows whether the market is in a one-sided trend. Second is finding trading signals; a +DI crossing above -DI is a buy signal, crossing below is a sell signal. Last year, Apple stock exhibited this situation, rising from $179 to $199. Third is bottom fishing or topping out; when the price hits a new high but +DI and ADX decline, this is a bearish divergence, indicating the upward momentum is waning.

However, DMI is not perfect. The biggest issue is that it is based on the average of the past 14 days, making it relatively slow to react and prone to missing some swings. It can also generate false signals in sideways markets. My suggestion is to adjust parameters, for example, change from 14 to 9, and combine it with MACD or RSI for confirmation. This will improve accuracy significantly.

Honestly, the DMI indicator is best suited for markets with clear trends. If you want to use it for trading, it’s best to test it in a demo environment first, adjusting parameters based on your trading instruments. My own experience is that combining DMI with pattern analysis to determine take-profit and stop-loss levels works quite well. If you're interested, you can check out real-time data on Gate, try it with candlestick charts yourself, and experience how DMI performs in actual trading.