Vanguard Total Stock Market ETF (NYSEARCA:VTI) and iShares Core S&P Total U.S. Stock Market ETF (NYSEARCA:ITOT) both promise the entire investable US equity market in a single ticker. Yet the index each fund tracks, the issuer behind it, and the fee structure differ in ways that matter once you commit real capital. With volatility now ... iShares Core S&P Total U.S. Stock Market ETF’s 0.03% Fee and BlackRock Scale Face Off Against Vanguard Total Stock Market ETF’s Structural Advantages