The key is that the inclination angles of wedge and symmetrical triangle are different, which is the most significant difference.
Wedge is also composed of two gradually converging trend lines, usually lasting 1 ~ 3 months, belonging to a medium-sized trend form with triangles. We know that symmetrical triangle is impartial, and there is no difference in appearance and scale between symmetrical triangle in the upward trend and symmetrical triangle in the downward trend. However, wedges have an obvious tendency. The wedge that appears in the upward trend is inclined downward, while the wedge that inclines upward means bearish, similar to the flag shape.
Similar to the breakthrough of triangle, the breakthrough of wedge generally occurs at 2/3 ~ 3/4 of its transverse length. There are also cases where a breakthrough does not occur until the wedge-shaped tip. Wedges tend to break through near the tips of shapes.
From the perspective of transaction volume, the wedge has obvious shrinkage finishing characteristics during its formation, but when the wedge breaks through, the transaction volume tends to expand rapidly. Especially when the upper edge of the falling wedge is broken, the expansion of trading volume becomes more important.
Wedge up and down
Generally speaking, the downward wedge in the upward trend is called "downward wedge", which means bullish; The upward sloping wedge that appears in the downward trend is called "upward sloping wedge". It is bearish. However, when the "upward wedge" is found in the long-lasting upward trend, it also has bearish significance, which is often the performance of the market peaking; Similarly, if there is a "downward wedge" at the bottom of the market, it won't be long before the market turns upward, and the "downward wedge" is still bullish here.
The measurement method of wedge-shaped price target is the same as flag-shaped and pennant-shaped, that is, the sharp rise or fall of the market before the wedge-shaped breakthrough is regarded as the rise or fall after the wedge-shaped breakthrough.