Huh, that's interesting. So when it says "USD Volume 700mm" does that mean 700MM was actually exchanged from BTC to USD or vice versa? Does a pair of trades USD

Huh, that's interesting. So when it says "USD Volume 700mm" does that mean 700MM was actually exchanged from BTC to USD or vice versa? Does a pair of trades USD-BTC-USD count double?