The wedge pattern is a technical analysis tool, which predicts the oncoming breach of the market trend.

Visually Wedge is similar to a Triangle, the only difference is that both its forming lines are pointed in one direction. 

Wedge patterns are trend reversal patterns. They are composed of the support and resistance trend lines that move in the same direction as the channel gets narrower until one of the trend lines get broken and reverse the immediate trend on heavy volume. These reversals can be quite violent due to the complacent nature of the participants who expect the trend to continue. Trend lines are the best way to spot the narrowing of the channel, which is the first key sign that the reversal may be forming.

The wedge is usually formed at the top or bottom of the market, only the trend lines converge. 

If the wedge is directed upwards in an uptrend, most likely there will be a breakdown and the trend will reverse. If it is directed downwards in a downtrend - an upward trend breakdown is similarly possible.

But if the wedge is directed against the main movement, the pattern will be the continuation of the movement. That is, the breakdown mainly takes place in the direction opposite to the tilt of the Forex pattern, although it is not always necessary.