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ETF vs Index Fund

InvestingSide-by-side comparison

Compare ETFs and index funds to understand which low-cost investment vehicle is right for your portfolio.

ETF compared with Index Fund, feature by feature
FeatureETFIndex Fund
How They TradeTrades like a stock throughout the dayPriced once per day at market close
Minimum InvestmentPrice of one share (often $50-$500)Often $0-$3,000 minimum
Expense RatiosTypically very low (0.03%-0.20%)Typically very low (0.02%-0.20%)
Tax EfficiencyHighly tax-efficient (in-kind redemptions)Good, but may distribute capital gains
Automatic InvestingRequires manual purchaseEasy to automate with dollar amounts
Fractional SharesAvailable at some brokersYes, invest any dollar amount
Best AccountsTaxable and retirement accountsIdeal for retirement accounts

Overview

ETFs and index funds both offer low-cost, diversified exposure to markets, but they differ in how they trade, minimum investments, and tax efficiency. For most long-term investors, the differences are small.

Choose ETF when

Choose ETFs if you want intraday trading flexibility, invest in a taxable account, or are starting with a small amount.

Choose Index Fund when

Choose index funds if you want to automate dollar-cost averaging or invest set dollar amounts on a schedule.

Our verdict

For most investors, ETFs and index funds are nearly identical in practice. ETFs offer slightly better tax efficiency in taxable accounts. Index funds make automatic investing easier. Pick whichever fits your broker and investing style.

Frequently asked questions

What is the difference between ETF and Index Fund?
ETFs and index funds both offer low-cost, diversified exposure to markets, but they differ in how they trade, minimum investments, and tax efficiency. For most long-term investors, the differences are small.
When should I choose ETF over Index Fund?
Choose ETFs if you want intraday trading flexibility, invest in a taxable account, or are starting with a small amount.
When should I choose Index Fund over ETF?
Choose index funds if you want to automate dollar-cost averaging or invest set dollar amounts on a schedule.

Not sure which is right for you?

Warren looks at your accounts, income and goals, then gives a recommendation built for your situation.