The Coinbase, $COIN, crash just erased $100 BILLION of market cap in #Bitcoin  in 15 minutes. Between 12:15 PM ET and 12:30 PM ET, Bitcoin fell from $64,000 to $59,000. This was a near 9% swing in 15 minutes right as many Coinbase users began showing a $0 balance in their account. It also happened to occur just as Bitcoin was less than 10% away from a new all time high. Coinbase is reportedly still working on fixing the issue.