This year has been a landmark year for Vanguard S&P 500 ETF (VOO) . After dethroning the SPDR S&P 500 ETF Trust (SPY) earlier in 2025 as the world’s largest ETF, VOO has now set another record, becoming the first ETF in history to top $700 billion in AUM.VOO’s AUM currently stands at roughly$709 billion, outpacing SPY’s 647.7 billion and iShares Core S&P 500 ETF (IVV) at 645 billion, according to ETF.com. The lead has widened steadily in 2025, fueled by heavy inflows (read: U.S. Equity ETF Demand Surged ...