If at the time of the hard fork november 15 you will in bitcoins, then be sure to keep them on exchanges, otherwise you will not be able to make deposits for sale, both sides do not want to put protection from repeated transactions
Don't forget that exchange aren't allowing you to give the private keys of the wallet you will use with them. Are you just want to trade immediately after the fork? Normally exchanges are closing the deposits and withdrawals through that fork coin and they are having some maintenance but they are not closing the buy and sell orders. Just like what happened to bitcoin cash, the trades has been quick and with that pump I missed the chance of selling it at the peak. It's still better to place your bitcoins on a wallet where you have the private keys.