You asked: those shares you bought in the $60 and are sitting on. How does Pro Shares go about charging you the expense fee on them? Once a month? When you sell them? ????? I'm still in the dark on WHEN and HOW they collect that expense fee.
The short answer is TQQQ is reballanced daily. There is a more complicated answer though ... not sure i can do it justice.. Decay is everyday but is visable over time. But if its $30, that is what get ... I do pay a small brokerage fee because it's an ETF but has nothing to do with it being TQQQ..