An analysis suggests the Vanguard International High Dividend ETF (NASDAQ: VYMI) could be the most underrated investment of 2026. The $19.5 billion ETF, which turned 10 in February, has reportedly outperformed both the S&P 500 and broader international ETFs this year. It offers a 3.5% dividend yield and an annual fee of 0.07%, with its portfolio allocating only 5.4% to tech stocks and half its holdings in financial services and industrial sectors.