VTI's extra 3,000 stocks cost investors $393,400 per $500K vs. S&P 500 over 10 years

Over the past decade, the Vanguard Total Stock Market ETF (VTI) underperformed the Vanguard S&P 500 ETF (VOO) by about 78.68 percentage points, costing investors roughly $393,400 on a $500,000 investment. Although VTI offers broader diversification with around 3,000 additional small- and mid-cap stocks beyond the S&P 500, these smaller companies lagged behind the mega-cap leaders driving S&P 500 returns. Both ETFs charge similar low fees, so the performance gap is due to VTI's exposure to underperforming smaller stocks diluting gains. Investors seeking large-cap exposure might prefer VOO, while those wanting small-cap exposure should be aware of its recent drag on returns.

VTI's market cap stands at $2.30 trillion, notably larger than VOO's $1.80 trillion, reflecting its broader market coverage including about 3,000 extra small- and mid-cap stocks. On Pluang as of Sep 23, 2026 05:21 WIB, VTI trades at USD 381.50 with a 1-day gain of 0.11%, while VOO is priced at USD 712.89, up 0.01% for the day. Despite VTI's larger size and broader diversification, its longer typical hold time of 130 days on Pluang contrasts with VOO's 53 days, indicating different investor strategies for these ETFs.