Key facts
- State Street's SPDR Portfolio S&P 500 ETF (SPYM) charges an expense ratio of 0.02%.
- Vanguard's S&P 500 ETF (VOO) charges an expense ratio of 0.03%.
- VOO holds $1.675 trillion in net assets as of June 30, 2026.
- SPYM holds $171.5 billion in net assets.
- VOO returned 12.59% year-to-date and 16.61% over one year through September 18, 2026.
- SPYM returned 12.63% year-to-date and 16.65% over one year through September 18, 2026.
State Street is now offering exposure to the same 500 stocks as Vanguard's popular Vanguard S&P 500 ETF (VOO) at a lower cost. The SPDR Portfolio S&P 500 ETF (SPYM), formerly known as SPLG, charges an expense ratio of 0.02%, compared to VOO's 0.03%. This difference represents a 33% cost saving for investors annually.
As of June 30, 2026, VOO held $1.675 trillion in net assets, while SPYM held $171.5 billion. Despite the fee difference, performance between the two ETFs has been nearly identical. Through September 18, 2026, VOO returned 12.59% year-to-date and 16.61% over one year, while SPYM returned 12.63% year-to-date and 16.65% over one year.
Other competitors also offer similar exposure at competitive prices. The iShares Core S&P 500 ETF (IVV) matches VOO's price and tax-efficient structure, while the Fidelity 500 Index Fund (FXAIX) offers an even lower expense ratio of 0.015%, though it operates with end-of-day pricing rather than intraday liquidity.