Generated June 2026 from current fund data.
Overview
SPLG and VTI are both broad U.S. equity index ETFs designed to track the stock market at rock-bottom costs, but they differ in scope. SPLG tracks only the S&P 500 (the 500 largest companies), while VTI tracks the entire CRSP U.S. Total Market Index, which includes mid-cap, small-cap, and micro-cap stocks alongside large-caps. For most investors, this difference in breadth is the deciding factor between them.
How they differ
The core distinction is market coverage: SPLG gives you the 500 largest U.S. companies, while VTI includes roughly 3,500 stocks across all market capitalizations. This means VTI holds mid and small-cap exposure that SPLG doesn't, adding diversification beyond mega-cap names. On fees, they're nearly identical—SPLG charges 0.02% while VTI costs 0.03%—a trivial difference on small accounts. VTI is substantially larger, with $654B in assets versus SPLG's undisclosed AUM, which typically translates to tighter bid-ask spreads and deeper liquidity. Both pay quarterly dividends; VTI's reported distribution rate is 1.10%.
Who each is best for
SPLG: Fits investors seeking pure large-cap U.S. exposure with the absolute lowest fees. Works well as a core holding for those confident that the largest 500 companies capture most U.S. equity market returns.
VTI: Designed for investors who want complete market-cap diversification in a single holding, capturing small and mid-cap premium potential alongside large-cap stability. Appeals to buy-and-hold portfolios seeking maximum breadth without needing separate small-cap tilts.
Key risks to know
- Concentration in large caps: SPLG's S&P 500 focus means roughly 25–30% of the fund is typically held in the "Magnificent Seven" and other mega-cap names, limiting diversification versus the full market.
- Mid and small-cap omission: SPLG excludes the mid-cap and small-cap universe entirely. If those segments outperform large-caps (as they have in certain cycles), SPLG will lag VTI.
- Small-cap volatility in VTI: VTI's inclusion of roughly 2,000 smaller stocks adds price volatility, particularly during risk-off periods when small caps sell off harder than large caps. Beta of 1.0379 reflects this slightly higher market sensitivity.
- Sector drift overlap: Both funds are heavily weighted to technology and financials. Holding both alongside sector-specific holdings can create unintended concentration.
Bottom line
If you want the most diversified single holding across all U.S. market caps and can tolerate slightly higher volatility from smaller stocks, VTI's broader index justifies the one basis point fee difference. If you prefer the simplicity and certainty of owning the 500 largest companies with absolute minimal fees, SPLG delivers equivalent simplicity at marginally lower cost. Past performance doesn't predict future results—periods of small-cap outperformance and underperformance have both occurred, and fee differences will compound modestly over decades.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.