Hi
aim wondering which source is used at coinmarketcap.
since they have no own exchange they need to receive a data stream from somewhere.
Most of the times the rates especially for BTC is the highest I could find somewhere.
thanks
marketcup is difference from exchange site into other if your place or country have demand exchange site will be high and other low
sometime difference between north and east of country more than 2000$.
also sites and channel give you average