I've decided to pocket my gains from MARA after realizing a nearly 100% gain since purchasing it a couple of months ago, along with WONDF for a more modest 18% return (approximately).
BITF has done relatively well, climbing to $6.39 from the $3.56 price at which I purchased it. However, today I am liquidating my E*Trade account to supply the funds I'm going to need for Christmas shopping. (However, I will continue to day trade my OANDA and Forex.com Forex accounts.)