GDAX:
Trading will be enabled on the BCH-USD order book at 11am PST. If significant volatility is observed, GDAX will pause trading.
I think they got themselves in some serious trouble, should have done like gemini that dumped the bch to a wallet. Instead, they want to keep the 'instant buy/sell' model having a crap ton of users happy to make some quick money selling bch. Its going to be fun... Always assuming Ver does not have enough money to bail them out :p