It's being pumped by the S2X crew, so they can dump their coins then buy back in to BTC cheaper and make a big profit. Just hodl and be patient.
Yes,the price of BCH has fallen now from $1,673 to $1,519 now.I think its time for dumping and its under process.That's why,for the first time after three days of pumping,BCH price has started to fall.If it continues,once again people who switched from BTC to BCH would sell their BCH coins and would buy bitcoins.If this happens,it would be a big relief for bitcoin.