@haejin, I'm just wondering about your wedges on BTC.
In my opinion a wedge get's formed by the past. You draw them using figures you have out of december 2017, touching lower lows half way through january.

When I look into your given charts I see three differend wedges with a massive difference:

30-1-2018
wedge reached $ 7.748,--

7-1-2018
wedge reaches $ $ 5.500,--

13 Hours ago
wedge reaches $ 3.857,--

Do you have an explenation about that?