Find the Right ETF.
Then Run the Numbers.

Use ETF BFF's research browser to filter by expense ratio. Sort by cost to see funds with the lowest fees. Look for ETFs with expense ratios below 0.10% for broad index funds: VOO (0.03%), VTI (0.03%), and SCHB (0.03%) are among the cheapest.

An expense ratio is the annual fee an ETF charges, expressed as a percentage of your investment. A 0.03% expense ratio on a $10,000 investment costs $3 per year. Lower is almost always better for long-term investors.

ETFs (exchange-traded funds) trade on stock exchanges throughout the day like stocks, while mutual funds price once per day after market close. ETFs typically have lower expense ratios, no minimum investment, and are more tax-efficient than mutual funds.

ETF BFF covers 400+ ETFs across major categories: US equity, international equity, fixed income (bonds), real estate (REITs), commodities, sector ETFs, dividend ETFs, options income ETFs, leveraged ETFs, thematic ETFs, and cryptocurrency ETFs. Use the category filter to explore each type.

Broad market index ETFs like VOO (S&P 500) or VTI (total US market) are widely considered among the most beginner-friendly investments available. They offer instant diversification across hundreds or thousands of companies, low fees, and are held in standard brokerage accounts.