I’m not recommending this. Be careful. It’s daily leverage (intended for short term use). If you look at it over longer periods, there is very very substantial drag. As a short term gamble with a single digit percentage of your portfolio, maybe.

See also this article about risks of leveraged ETFs: https://www.bogleheads.org/wiki/Leveraged_and_inverse_ETFs

Edit: here’s a chart comparing TQQQ to plain QQQ: https://totalrealreturns.com/s/TQQQ,QQQ