At b2x-segwit.io they tell you that B2X is traded at HITbtc.

Thats false.

HITbtc is trading another chain, this is close to SCAM. Right now, they have a not working wallet, which stops syncing at the date of the fork and only one loser exchange.
I tried to chat with them but no serios answer they just closed the chat window after I asked they how about the HITbtc situation ...

Can not recommend this fork, looks like jet another wannabe bitcoin fork to me.