Top 10 Best Index Funds for Long-Term Investors in 2026

FZROX is one of the only major broad-market index funds with a 0.00% expense ratio, eliminating fund fees for Fidelity investors. Since launching in 2018, it tracks a proprietary Fidelity index designed to track the total US stock market. It is restricted to Fidelity brokerage accounts only, unlike more portable ETF alternatives, making it best suited for investors who keep their assets at Fidelity.

BND establishes the definitive bond market pillar for retirement-focused investors, holding over 10,000 US investment-grade bonds across Treasuries, corporates, and mortgage-backed securities. As the anchor of the classic 60/40 portfolio, it provides diversification and generally lower volatility than an all-equity portfolio. During the 2022 rate hike cycle, however, BND fell roughly 13%, underscoring interest rate risk. This makes it best for investors within 10 to 15 years of retirement seeking a stable income stream.

VWO delivers unmatched exposure to the fastest-growing economies, including China, India, Brazil, Taiwan, and South Korea — together home to well over a third of the world's population. India's weight in the index has surged from 8% to 22% since 2020, reflecting shifting growth dynamics. With a 0.08% expense ratio, it is slightly more expensive than BND but still competitive, roughly 30% costlier than SCHD's 0.06%. Emerging markets are widely expected to keep contributing an outsized share of global GDP growth in the years ahead, and VWO's volatility runs meaningfully higher than SCHD's, making it a riskier play. A 10% to 15% allocation is commonly recommended. Best for patient investors with 15-plus year horizons who can tolerate higher volatility for potentially greater returns.

SCHD combines dividend income with long-term growth, screening 100 US stocks for dividend consistency, cash flow to debt, return on equity, and yield. Its 0.06% expense ratio is lower than VWO's 0.08%. Since inception in 2011, it has outperformed the S&P 500 in risk-adjusted terms. Current yield as of 2026 is approximately 3.5%, nearly triple the S&P 500 average of 1.3%. SCHD dividends are qualified and tax-efficient. Best for investors seeking income combined with long-term growth.

USRT provides diversified real estate exposure across residential, commercial, healthcare, and industrial properties via REITs, with a 0.08% expense ratio equal to VWO's. REITs must distribute 90% of taxable income as dividends, yielding approximately 3.8% in 2026, slightly above SCHD's 3.5% by 0.3 percentage points. Historically, real estate offers returns between bonds and equities with low correlation to both, making it an effective portfolio diversifier that reduces volatility compared to equity-only funds like VWO by roughly 15% over a 20-year horizon. However, REIT dividends are typically ordinary income, making this more suitable for tax-advantaged accounts. Best for diversifying long-term portfolios.

VXUS is the cheapest core international holding, with a 0.07% expense ratio covering over 7,600 non-US stocks from developed and emerging markets. With US stocks trading at P/E ratios 30–50% above equivalent European and Asian firms, VXUS positions investors for secular mean reversion. A 60/40 VTI-to-VXUS split mirrors global cap weights, offering true world ownership.

Vanguard Target Retirement Funds offer a 0.08% expense ratio and an automatic stock-to-bond glide path, a lower cost than the typical target-date rival. By removing behavioral errors that cost average investors an estimated 1–2% annually in market-timing losses, this Morningstar Gold-rated series outperforms manually allocated alternatives in simplicity. Best for hands-off investors seeking a single lifelong holding.