3X "investments" longer than a couple days are a fools paradise, because the way these multiple level "ETF" degrade, you're looking at a fund that was $200 five years ago now at $6 becoming $7. Whoppee!
They remind me of YDM's bleat about options. You'd do better investing in in the money two month NEM options with little premium. You'd at least have time to double down.
3X ETF make me shudder, just look at the chart and watch a dollar become three pennies, no matter where gold prices went.