Long term historical performance is kind of useless in years after a huge move up or down in indexes, or during an economic recovery. I patterned my decisions since March 2020 based on what occurred 2009-2012. Strong commodities ( especially Copper ), strong CDN$, strong cyclicals like Cdn banks, strong TSX off the bottom. Two aspects that didn't repeat closely were IT was much stronger in 2020 then 2009/2010 and Gold/Silver miners ran up super strong and fast but then cratered for 7 months. If you want to look at historical decisions since 1995, simply putting all your money in TD Bank stock was far better then owning QQQ. Nobody knew that in 1995 though.
Your data excludes bear markets therefore is biased. If you track back to 1999 , QQQ beat TQQQ for both reward and risk. https://www.elitetrader.com/et/threads/tqqq-vs-qqq-22-years-simulation.356593/
I just went back to when it became available. That way I missed the tech wreck and the 2008 meltdown. Somewhere there's a disclaimer about past performance. I have no idea where things are going tomorrow. Back testing only tells you what you could have done.
That was me being sarcastic as he was explaining to us how we missed such a great opportunity with his hindsight analysis. If he had worded it more correctly and suggested what could've happened rather than us missing that great trade, I'd have not commented so sarcastically.