I have sold all my LISK tokens on bittrex, sent over my position in bitshares (for speed) to Polo and bought LISK back at a nice 12% discount.
Unfortunately you cannot send LISK back to bittrex at the moment due to the wallet maintanance on bittrex.. otherwise this could be a fun cycle!!
I am not necessarily advising anyone to do this as prices can align quickly and break out in any direction, but if you're up for it, at your own risk, good luck!