Vanguard Total Stock Market Index Fund ETF (NYSEARCA: VTI) has outpaced the SPDR S&P 500 ETF (NYSEARCA: SPY) in 2026, with VTI up approximately 10.2% year to date against SPY’s 10.1%.

The margin is razor-thin, but for a fund whose entire strategy is built on doing less, the result carries symbolic weight against the world’s most recognized index ETF.

VTI tracks the CRSP US Total Market Index, holding roughly 3,700 stocks that cover essentially every investable U.S. company across all market capitalizations.

SPY, by contrast, tracks the 500 largest U.S. companies by market cap, and because both funds are cap-weighted, their top holdings are nearly identical.

Nvidia (NASDAQ: NVDA), Apple (NASDAQ: AAPL), and Microsoft (NASDAQ: MSFT) together make up 19% of SPY, with information technology accounting for 35% of the fund’s total sector weight.

VTI carries slightly lower mega-cap exposure, spreading the difference across thousands of smaller names that SPY does not hold at all.

When small and mid cap stocks rally, VTI captures gains that SPY misses entirely, which explains much of the current performance gap in 2026.

The recent edge does not hold across all time horizons, with SPY returning 92% over five years compared to VTI’s 83%, dividends reinvested, and SPY returning 302% over ten years versus VTI’s 307%.

Cost is one variable that consistently favors VTI, which charges 3 basis points annually compared to SPY’s approximately 9 basis points, a gap that compounds significantly on large positions over decades.

VTI’s broader diversification does not eliminate concentration risk entirely, since cap-weighting still means the same mega-cap technology names dominate both funds, just slightly less so in VTI.

Both funds also carry the same valuation overhang, given that the largest holdings by market cap are identical across each index regardless of how many additional names VTI includes.

For long-term retirement investors still in the accumulation phase, VTI offers exposure to every U.S. company that could eventually become a market leader, alongside a lower expense ratio and a structure suited to buy-and-hold strategies.

SPY remains the preferred instrument for active traders who require the deepest options market and tightest bid-ask spreads available in any U.S.-listed ETF.

The 2026 performance data serves as a reminder that owning the full U.S. market, including its least-discussed corners, can occasionally reward patient investors who never made a single tactical decision.