This Under-the-Radar ETF Owns Everything the S&P 500 Is Missing and Has Returned 13.55% YTD

The S&P 500 is far more selective than most investors realize, and the thousands of profitable companies it excludes have quietly been outpacing it in 2026. One under-the-radar ETF captures all of them at once, and its structure solves a problem most mid-cap and small-cap funds never address.