Schwab Fundamental U.S. Broad Market ETF (FNDB) is an exchange-traded fund that seeks to track the total return of the RAFI Fundamental High Liquidity US All Index, which measures the performance of U.S.-based companies selected and weighted based on fundamental metrics including sales, cash flow, and dividends plus buybacks; it provides exposure to a broad range of U.S. equities across market capitalizations, with approximately 1,629 holdings as of December 2025, diversified across sectors such as information technology (17%), financials (16%), and health care (12%); top holdings include Apple Inc., Microsoft Corp., Alphabet Inc., Exxon Mobil Corp., and JPMorgan Chase & Co.. The ETF, launched on August 15, 2013 and managed by Charles Schwab Investment Management, Inc., a division of The Charles Schwab Corporation headquartered in Westlake, Texas, operates passively with a total expense ratio of 0.25% and total net assets exceeding $1 billion; it targets investors seeking value and yield factor exposure through a rules-based, contrarian approach that emphasizes fundamental size over market capitalization weighting.. In recent developments, effective June 21, 2024, the fund transitioned its benchmark index from the Russell RAFI US Index to the RAFI Fundamental High Liquidity US All Index as part of Schwab Asset Management's suite-wide refinements; additionally, on October 10, 2024, FNDB executed a 3-for-1 forward share split, increasing shares outstanding while reducing net asset value per share without altering shareholder value..