I've noticed that many traders get confused with chart patterns. Let's analyze the four main triangle patterns that actually work in trading.

Let's start with the descending triangle. This is a bearish pattern where horizontal support at the bottom meets a resistance line that gradually slopes downward. It's clear that sellers are exerting more pressure each time. When the price breaks below the support, it's a signal to open a sell position. The key is to wait for confirmation with volume. Close the position either when a new support is reached or when signs of a reversal appear. Place your stop-loss above the last resistance line.

The opposite case is the ascending triangle. This is a bullish pattern where horizontal resistance at the top combines with rising support at the bottom. You can see increasing buying pressure. A buy position is opened when the price breaks above the upper line, always checking if volume is increasing. Close when a higher resistance or overbought zone is reached. Place your stop-loss below the last support.

The symmetrical pattern is a neutral figure. The resistance line slopes downward, the support line rises, and they converge in the center. This triangle can break either upward or downward, depending on whether buyers or sellers are stronger. Enter only after a clear breakout in either direction with good volume. If the breakout is upward, buy; if downward, sell. Place your stop-loss on the opposite side of the breakout.

There's also the expanding triangle — the most tricky pattern. Here, support and resistance lines diverge, creating increasing volatility. This indicates market instability. Enter positions cautiously, only after a breakout and with a smaller position size. Volatility can be very high, so place your stop-loss beyond the farthest point of the pattern.

What unites all these triangles? Several key points. First, volume is king. A breakout without volume increase is often false. Second, look at the previous trend. An ascending triangle works better in an uptrend, a descending one in a downtrend. Third, always use a stop-loss. It protects your capital when the market makes an unexpected move.

In practice, I see traders often enter too early, even during the pattern formation. That's a mistake. Wait for a clear breakout. Also, pay attention to decreasing volume during the triangle formation — this often precedes a strong move. And remember, each pattern requires context. The same triangle can produce different results on different markets and timeframes. Study, practice, and over time you'll learn to recognize these patterns automatically. Risk management and understanding each pattern's characteristics are the foundation of profitable trading.