SPY vs ITOT ETF Comparison

State Street SPDR S&P 500 ETF (SPY): S&P 500 index exposure. iShares Core S&P Total U.S. Stock Market ETF (ITOT): U.S. total market equities.

37% of SPY is its ten largest holdings.

33% of ITOT is its ten largest holdings.

89% of ITOT is already inside SPY.

100% of SPY is already inside ITOT.

Overlap by weight: 88.5%.

As of August 2026, ETF Copilot compares SPY vs ITOT on Value, Growth, Quality, and Risk.

Updated August 2026

State Street SPDR S&P 500 ETF (SPY) — ETF Copilot score 5.2/10 · top 10 holdings 37% of assets · Tech 45%, Magnificent 7 33%
iShares Core S&P Total U.S. Stock Market ETF (ITOT) — ETF Copilot score 5.0/10 · top 10 holdings 33% of assets · Tech 42%, Magnificent 7 29%