Recently, someone asked me what shape a wedge is, and I realized that many new traders still don’t fully understand this pattern. In fact, wedges are very common in technical analysis, but they are also indeed easy to confuse.

I’ve been using wedges for short-term trading for many years, and I’ve found that the biggest feature is that the upper and lower boundary lines clearly converge—like a funnel slowly squeezing toward a single point. If the boundary lines are too loose, then it’s not really a wedge and it can easily turn into other consolidation patterns. That’s also why, when I look at charts, I pay special attention to how much the boundary lines are converging—if they’re too loose, I immediately pass.

So what shape is a wedge, exactly? Put simply, the price oscillates between the upper and lower boundary lines, and both lines slope in the same direction at the same time. This is the biggest difference between a wedge and a triangle. I’ve fallen into this trap before—I treated a wedge as a triangle for trading, and as a result, my judgment of the direction was completely wrong. Now, my approach is to first recognize the wedge’s characteristics: look at whether the boundary lines have a clear slope; if one side is approaching horizontal, then it’s a right triangle, not a wedge.

From a trading perspective, wedges are especially suitable for short-term and medium-term operations. But there’s one detail to watch out for: if, in a declining market, a rising wedge suddenly appears, I usually treat it as a rebound wave rather than the start of a bullish trend. At this time, you need to be particularly alert to the following bearish movement and not take it lightly.

Price fluctuations inside a wedge tend to be relatively tight, and that’s one of its advantages—it can provide clearer entry and exit points. But precisely because of that, if you identify it incorrectly, losses can come very quickly. So my advice is to look at several examples of wedge patterns, imprint their features in your mind, and then you can judge them quickly in live trading. Applying wedge patterns does require some experience accumulation, but once you’ve mastered it, it can be very helpful for short-term trading.