Top Low-Cost Index Funds for Long-Term Compound Growth

Offers exposure to the entire U.S. stock market with an incredibly low expense ratio of 0.04%. Its broad diversification helps mitigate risk while capturing the long-term growth of the American economy, making it ideal for buy-and-hold strategies.

Tracks the S&P 500 index, providing ownership in 500 large-cap U.S. companies. With a low 0.04% expense ratio and strong historical performance, it serves as a foundational core holding for investors focused on large-cap growth over decades.

Notably features a zero expense ratio, maximizing the amount of capital contributing to compound interest. It offers comprehensive U.S. market exposure similar to VTSAX but without the annual management fee, appealing to cost-sensitive long-term investors.

The original and most widely traded S&P 500 ETF, offering high liquidity and consistent tracking of the benchmark index. Although the expense ratio is slightly higher than index mutual funds, its scale and ease of trading make it a staple for many portfolios.

Provides broad U.S. equity market exposure through an ETF structure with an extremely low 0.03% expense ratio. It mirrors the CRSP US Total Market Index, offering investors a cost-effective way to capture the full breadth of U.S. economic growth.

Diversifies a portfolio by providing exposure to developed and emerging markets outside the United States. Holding an international component helps hedge against U.S.-specific economic downturns while still benefiting from global compound growth over long periods.

A no-transaction-fee mutual fund that tracks the S&P 500 with a very low 0.02% expense ratio. It is an excellent option for investors holding accounts at Charles Schwab, allowing for seamless integration and cost-efficient long-term compounding.

Offers broad international equity exposure across developed and emerging markets with a 0.09% expense ratio. This ETF is designed to reduce volatility through global diversification, complementing U.S.-focused holdings in a multi-decade investment plan.

Features a zero expense ratio and tracks the S.F.I.L. S&P 500 Index, making it one of the cheapest ways to gain large-cap exposure. It is a popular choice among Fidelity customers for building a core portfolio base over 20 years or more.

Focuses exclusively on non-U.S. developed markets, providing a stable component for international diversification. This fund helps balance a portfolio by reducing reliance on the U.S. dollar and American corporate earnings over long-term horizons.

Tracks the Nasdaq-100 index, heavily weighted toward technology and growth sectors. While more volatile than broad market funds, it has historically delivered superior returns, making it suitable for investors willing to accept higher risk for potential higher compound growth.

Provides low-cost exposure to the entire U.S. equity market with an expense ratio of just 0.03%. It is ideal for investors seeking comprehensive market coverage without paying higher fees, allowing more capital to remain invested for compounding.

Tracks the CRSP US Large Cap Index with a very low 0.03% expense ratio, available primarily through employer-sponsored plans. Its low cost and broad large-cap exposure make it a powerful engine for retirement savings and long-term wealth building.

An alternative to SPY with a slightly lower 0.03% expense ratio for tracking the S&P 500. It is widely held by institutional and retail investors alike, offering a reliable and liquid vehicle for long-term capital appreciation.

Similar to VTSAX, this fund offers exposure to the entire U.S. stock market with a 0.015% expense ratio. It is a top-tier choice for Fidelity clients looking for maximum diversification and minimal costs to fuel 20-year compounding.

Provides exposure to the total U.S. investment-grade bond market, adding stability to a growth-focused portfolio. While bonds generate interest rather than capital gains, they reduce overall volatility, protecting compounding assets during market downturns.

Tracks the Dow Jones Industrial Average, offering exposure to 30 prominent blue-chip companies. It serves as a conservative equity option for investors seeking stability and dividend income alongside moderate long-term growth potential.

Focuses on small-cap U.S. companies, offering higher growth potential and volatility compared to large-cap indices. Including small-cap exposure can enhance long-term returns due to the historical outperformance of small caps over extended periods.

Invests in companies with a record of consistent dividend growth, balancing income with capital appreciation. This fund is suitable for investors who want to capture compound interest through both price increases and reinvested dividend payments.

Tracks the Dow Jones U.S. Large Cap Total Market Index with a low 0.03% expense ratio. It offers a cost-effective way to access the largest U.S. companies, providing a stable foundation for long-term wealth accumulation.