And then S&P 600 small caps value did even better, at 7.5% vs 6.5% for the 10 last years. Why not invest in S&P SCV 600 if CAGR is the only interesting criterion ?
Heck, the NASDAQ Biotechnology Index even returned 14.4% on this period. Stash was multiplied by 3.83, for a lame 1.88 with S&P 500.
Regarding non-stocks passive investments via ETF, Gold returned 8.7% on the same period, and that's counting a huge bear market since 2012.
Are you really sure you want to only consider CAGR on a 10-year period ?