I just reviewed my notes on chart patterns and thought it would be interesting to share something many traders underestimate: flags on price charts. They are not just pretty lines; they can actually give you clues about where the market is headed.

Flag patterns are quite common if you know where to look. They appear when an asset already has a clear trend and then enters a consolidation phase. Imagine the price rises sharply (that's the pole), then moves sideways within a narrow range (that's the flag), and finally breaks out in the original direction. This is what many technical analysts look for to try to predict the next moves.

There are two main types. The bullish flag forms after a strong upward move and suggests that the price will continue rising. You see it in clear uptrends. On the other hand, the bearish flag appears after a sharp decline and anticipates further drops. Both have the same structure: a pole (the initial strong move) and the flag (the rectangular consolidation).

So, how do you use them in trading? For a bullish flag, identify the point where the price breaks above the upper boundary of the rectangle. That is your entry point. To estimate how far it could go, take the height of the pole and add it to the breakout price. For the bearish flag, it's similar but in reverse: wait for it to break below the lower boundary.

A quick example: suppose you see a bullish flag on ETH/USDT. The consolidation range is between $2,500 and $2,800 USD. The previous pole measured about $1,200 USD. When the price breaks above $2,800, that’s your signal. Your target would be approximately $2,800 + $1,200 = $4,000 USD. To protect yourself, place a stop-loss below the flag’s support.

One important thing: don’t confuse flags with pennants. Pennants have a triangular shape, not rectangular. They are similar patterns but slightly different.

Now, the warning I always give: these patterns are not guarantees of anything. False breakouts exist. The price can break the bullish flag and then quickly reverse. That’s why many traders combine this with other indicators like RSI to confirm if an asset is truly overbought or oversold.

What really matters is that you first identify if there is a consistent and strong trend. A bullish flag in a market without volume or clear momentum isn’t worth much. Volume is key: a real breakout is usually accompanied by strong movement.

Use these patterns, but do so carefully. They are useful tools, not crystal balls. Combine them with analysis of the overall market context and your own risk management.