Bitcoin surged before the US stock market opened tonight, reaching 68800 after a wave up from #BTC , then quickly retraced to around 65700, dropping 3000 points from the high. The rebound to 67300 couldn't hold, and it retraced again to around 66000, showing a minor rebound. Currently, I personally feel that the lowest point for Bitcoin tonight will be around 65000-64000 at most. If you expect it to drop a lot more, I don't see that happening. If you are buying below, and the rebound can't hold above 67000, you might want to consider exiting for now and re-entering later.