Just seeing this thread and we've gone through this leveraged ETF discussion several times over the years with various clients (institutional and HNW). The slippage and decay caused by the daily reset makes these investments become a loser over time from the long side and its way to volatile on the short side. Its just a math problem... However we knew of a hedge fund, maybe a decade ago or so now, whose entire strategy was to go long the 3X and short the 2X (or maybe it was reverse) and pick up the spread on the decay. Pretty smart strategy and the fund did well. Also it didn't require much leverage until the clearinghouses caught wind and increased margin requirements for levered ETFs on both the long and short side. Increasing the margin requirements wound up taking a lot of the juice out of the trade.