Subject: Re: twice the Nasda100 CAGR with simple criteria
I am using the screener in Portfolio123 simply sorting the NASDAQ 100 by Ret1Y%Chg. Top 10 stocks.

Rebalance every 4 weeks, max 10 stocks, and no slippage/carry cost.

From 01/01/2020 to present, I am showing an annualized return of 14.79% versus QQQ at 18.92%.

I can see the first portfolio was:
AMD, LRCX, KLAC, SGEN, ASML, MELI, CPRT, AAPL, LULU, AMAT

When I run the following backtest in GTR, I believe the CAGR/IRR equivalent is 20.33% under Cycle 0.

https://gtr1.net/2013/?!!QlpoM...

Any ideas of what I am missing or is this level of variance (which seems shockingly high) accepted due to varying measurement approaches, trading parameters, etc....?

Thank you so much -- I'm learning!