This drop in the price are based on confusion between Bitcoin and Bitcoin Cash.

The average Crypto currency speculator does not understand the technical difference between Bitcoin and Bitcoin Cash. They read in mainstream media about a Bitcoin war and they think it is happening in Bitcoin
The Bitcoin Cash fork has absolutely nothing to do with Bitcoin , but these stupid speculators does not understand that, so they run for the hills at the slightest indication of possible instability.
The fork and the war is applicable to
Bitcoin Cash not Bitcoin BTC!!!!!!!!!!!!!!!!!!!!!!!!!!
people always try to rationalize why selling occurs, so they tie it to a news event. i saw some articles speculating that the bcash fork caused the dump. i really doubt it. i think price was just bleeding all week and a few large players got squeezed into closing their longs. that triggered more selling as people panicked.