40% volatility is nothing out of the ordinary in the history of Crypto.
I personally don't invest in BTC myself, but I certainly know that all boats rise with the tide, and BTC is the one to watch.
I'm believe there is an excellent chance BTC is going to be testing the $2750 support level. When that happens I'll be jumping on some Alts.
We arn't dropping BECAUSE of China's news. We were already overdue for a correction. The regulations, and BTCC news certainly contributed to the speed and ferocity of the consolidation, but it was due to happen regardless.
Quite frankly I prefer it, allows us to get on with our regularly scheduled programming sooner after we're over with this rapid shake out !