I've noticed that many beginners in trading get confused when they see triangles on charts. Although in reality, these are some of the most reliable patterns to work with. Let's understand what types of triangles exist and how to trade them.

Let's start with the descending triangle — this is a bearish pattern that I see at the end of upward trends. The horizontal line at the bottom holds support, while the top line gradually slopes downward. Sellers increase pressure, and the price can't break above. When support finally breaks — that's a signal to open a short position. The main thing is to wait for increased volume during the breakout, otherwise you risk catching a false signal. I place the stop-loss above the last resistance line. The triangle pattern works best when volume decreases as the pattern narrows.

The opposite situation is the ascending triangle. This is a bullish pattern where the top line is horizontal, and the bottom line rises. It's clear that buyers are pushing harder, each time raising the lows higher. When the price breaks the horizontal resistance with good volume — then you can open a long position. Trading on ascending triangles usually works during clear upward trends.

The symmetrical triangle is a neutral pattern. The top line slopes downward, the bottom line rises, and they converge at a point. The price consolidates, narrowing the range. Here, you wait for a clear breakout — either upward (bullish signal) or downward (bearish). You should only open a position after the breakout occurs and is confirmed by volume. Don't enter the position prematurely; this is a common mistake. Decreasing volume during the formation of such a triangle often predicts an imminent breakout.

There is also an expanding triangle — a rare and dangerous pattern. Support and resistance lines diverge, and volatility increases. This usually indicates market uncertainty, a large imbalance between bulls and bears. Entering here should be done cautiously because movements are unpredictable. I place the stop-loss further away to avoid catching a random spike.

Overall, successful trading with these patterns depends on several factors. First — I always look at volume. If volume increases after the breakout, it confirms the strength of the move. The higher the volume, the higher the probability of a serious move. Second — the trend context. A triangle within a clear uptrend will give a different result than in a sideways market. Third — risk management. A stop-loss is mandatory; otherwise, one unsuccessful trade can wipe out the profits from ten successful ones.

In practice, I often see these patterns on hourly and four-hour charts; they work best there. On minute charts, there's too much noise, and on daily charts, you sometimes have to wait a long time for a breakout. The main thing to remember: a triangle pattern is not a guarantee; it's a signal that needs to be confirmed by volume and context. When everything aligns — the probability of success is high. That's why experienced traders catch good moves on them.