While Wall Street’s attention has been fixed on Nvidia earnings, Fed chair transitions, and Iran ceasefire negotiations, something quieter has been happening at the smaller end of the market. The Russell Microcap Index is up 17.55% year to date. The S&P 500 is up 8.72%. Microcap stocks have more than doubled the return of the 500 largest companies in America through the first five months of 2026, and the story behind that performance is one that most mainstream financial coverage has almost entirely missed.