$BTC Where the US Trading Session and US Investors were the primary reason for the October all time high, they are also the main reason for this recent sell off. Most downside happening during the US & EU sessions. The Asia session has been pretty bearish into the October all time high but has actually not been a massive seller during this actual downturn. Most action still happens during the US session which is of course also when ETFs are live for trading and when most volume occurs.