I would laugh at a 3x rbob etf. Trading SQQQ and TQQQ is enough of the 3x stuff for me and when it was possible, I may be the only trader that ever used the full 2x margin to buy the 2x QLD and QID. This gives me quite a chuckle knowing every daily movement leveraged ETF goes to zero eventually and this one just has me rolling on the floor at the thought.