They say to buy the rumor and sell the news so it's quite likely we're already seeing the pricing/market action from Segwit2x even though the actual event is still a month out.

As for BCG, I think it's a poorly disguised joke intended to make the devs rich and there's very little info released from the dev team to suggest otherwise.  They're pre-mining (up to) 1% right now under the guise of "testing" yet dodge any legit concerns regarding replay protection, wallet, etc.

So sure, people love free coins and the BTC and ALT markets seem rich with speculation on BCG but tough to say how much of the action is from BCG or Segwit.

Sadly, forking BTC is gonna be the next get-rich-quick version of ICOs and ITOs and become much more prevalent so who knows how the markets will react.