I have tested a 1 and 2 stock strategy held monthly with .1 spreads, traded the 2nd-to-last day of the month at the close based on the 3rd-to last day's data. Plus a 5-stock strategy.
You get similar results using all 500 S&P500 stocks as the first step, but googlesheets freezes at about the 108 stock mark, so I added a 2nd step to reduce how many stocks googlesheets would have to look up; you then have to paste the symbols for the second step, from another source (e.g. finviz is free).

1 stock: S&P500 Top 20 by 6-month return then → SMA50/180 Top 2 then→ ADV40 #1
"Timed" means my SPY>325day SMA cutoff that requires this or go to cash on the usual trade day.

2 stocks: S&P500 Top 20 by 6-month return then→ SMA50/180 Top 2

5 stocks: S&P500 Top 80 by (6m price change % + (0.5 × 12m price change %)) then → SMA30/180 Top 50 then→ ADV200 Top 5

I didn't test all possible RS lookbacks; 6 month and 1 year are commonly reported so you can find them without needing googlesheets and then paste the symbols into googlesheets to calculate the remaining steps.

2000+ results
Strategy	Timing	CAGR	MDD	Sharpe
SP1, 1 stock	Untimed	35.30%	−74.35%	0.800
SP1, 1 stock	SPY-325	30.31%	−58.38%	0.752
SP2, 2 stocks	Untimed	25.46%	−47.13%	0.740
SP2, 2 stocks	SPY-325	21.34%	−50.64%	0.688
SP5, 5 stocks	Untimed	24.92%	−53.68%	0.931
SP5, 5 stocks	SPY-325	23.08%	−31.09%	0.936

The last completed return is from the May 27, 2026 signal through the June 26, 2026 signal.