Well this is super low and I would recommend buying some bitcoin if you have the money, since it is almost guaranteed that bitcoin will rise back up and you will profit off your investment.

What I think is causing all this huge dump in bitcoin is the pre segwit anticipation. Since a hard fork is happening, there are heaps of conspiracies of how this is when bitcoin will die. Then people are add to the drop by selling and rebuying when it drops even more