The old chain is not traded anywhere and will not be traded!!
If you do not exchange the old Xp for the new Xp you will lose!
I regret that in October 2017 I read reports that Xp is a Scam
and bought too little, and I regretted it in January 2018.
I don't like procedure SWAP, but everything is done for a reason in this world.
Xp has ambitions to list on binance, and you not thought that for this are required certain conditions???
Always think with your head and make decisions independently!!!

look at fedoragold and fedoracoin.
After a year of swapping, the new fedoragold has 0 value and 0 volume. Only fedoracoin still alive
Same apply to other "swap" coin.