Example of wedge symmetry, rising wedge turned falling wedge on the ETCUSD pair. The falling wedge begins wide at the top and contracts as it proceeds, eventually tightening to a point where it 'explodes' which can be seen. The rising wedge is the same except beginning wide at the bottom and tightening as it proceeds upwards, eventually leading to bearish movement. Apologies for the top red line it is not symmetrical at all!