Bitcoin prices fell today, I think the reason is the accumulation of foam. Another reason is that these days BCH crazy, most of the money went into BCH, turnover of billions today. There is a part of the original bitcoin money is flowing into BCH.
The price of bitcoin is reduced due to the nearing of Fork.It will further reduce and get into stable value.After the fork the price will again start to increase and as expect the price of bitcoin will reach 8000$ at this year end.