I've run into a serious problem. And i'm aghast! Every source is showing different data. The historical (Open, High, Low, Close) prices shown on CMC, Yahoo, and other sources are all different! How can this be!
Discussion
#Bitcoin price isn't set by some central authority. It is being traded for a different amount of dollars (or any other currency for that matter) at the same time. You can buy #Bitcoin the same second at two places and the price will be different.
The trading never stops so there's no official open/close position in a particular day.