You can buy Schwab's S&P 500 index fund with $1 and pay just 0.02% a year to own it. That combination, no minimum plus one of the lowest expense ratios in the industry, is why Charles Schwab index funds show up in so many beginner portfolios.
This guide covers Schwab's index mutual funds specifically: what they cost as of July 2026, how they differ from Schwab's ETFs, and how to buy them without paying extra fees.
What Are Charles Schwab Index Funds?
Charles Schwab index funds are mutual funds that track a market index, like the S&P 500 or the total U.S. stock market. Instead of paying a manager to pick winners, the fund simply holds everything in the index, which keeps costs close to zero.
Unlike ETFs, mutual funds price once per day after the market closes. You invest in dollar amounts rather than share counts, and you can set up automatic investments on a schedule. That structure makes them popular for hands-off monthly investing.
The Main Charles Schwab Index Funds
Here are the four funds that cover most portfolios, with expense ratios as of July 2026:
| Ticker | Fund | What it tracks | Expense ratio | Minimum |
|---|---|---|---|---|
| SWPPX | Schwab S&P 500 Index Fund | The S&P 500 | 0.02% | $0 |
| SWTSX | Schwab Total Stock Market Index Fund | Roughly 3,500 U.S. stocks of all sizes | 0.03% | $0 |
| SWISX | Schwab International Index Fund | Large companies in developed international markets | 0.06% | $0 |
| SWAGX | Schwab U.S. Aggregate Bond Index Fund | The broad U.S. bond market | 0.04% | $0 |
At 0.02%, SWPPX costs about $2 per year on a $10,000 balance. Even the priciest fund on this list, SWISX, runs about $6 per year on the same balance.
SWPPX is the flagship. SWTSX adds small and mid-size companies on top of the large caps, and SWISX plus SWAGX round out a classic three-fund portfolio.
Schwab Index Funds vs Schwab ETFs
Schwab runs two parallel lineups, and the differences matter more than most people expect. SWPPX (mutual fund) and SCHX (ETF) hold very similar large-cap portfolios, but they behave differently in your account:
- Trading. Mutual funds price once daily. ETFs trade all day like stocks.
- Dollar-based investing. Mutual funds accept exact dollar amounts, like $75 per payday. Schwab does not offer fractional ETF shares, so ETF buyers at Schwab purchase whole shares.
- Automatic investing. Schwab supports recurring automatic purchases into its mutual funds, which is the easiest way to stay consistent.
- Portability. ETFs trade commission-free at almost any brokerage. Schwab mutual funds usually trigger transaction fees if you buy them outside Schwab.
- Taxes. ETFs tend to be slightly more tax-efficient in taxable accounts, though index mutual funds like these distribute relatively little in capital gains.
If you want the ETF side of the story, we break down SCHB, SCHX, SCHD, and the rest of the lineup in our separate Schwab ETF guide.
Minimums and How to Buy Charles Schwab Index Funds
Schwab dropped investment minimums on its index funds years ago, so you can start with $1. Here is the process:
- Open a Schwab brokerage account or IRA.
- Transfer money from your bank.
- Search the ticker, like SWPPX, and choose a dollar amount.
- Turn on automatic investing if you want recurring monthly purchases.
One warning: buy Schwab mutual funds at Schwab. Many outside brokerages charge a transaction fee, sometimes $50 or more per purchase, to buy another company's mutual funds. That single fee could exceed a decade of expense-ratio costs on a small balance.
If you would rather not open a Schwab account, the ETF versions are the portable route. Robinhood offers fractional shares of ETFs like SCHB and SCHD starting at $1 with no commissions, plus recurring buys, so you keep the exact-dollar convenience mutual funds are known for. Our Robinhood review has the full breakdown.
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How Schwab Index Fund Costs Compare With Vanguard and Fidelity
As of July 2026, the big three price their S&P 500 index funds within a whisker of each other. SWPPX charges 0.02% with no minimum. Vanguard's VFIAX charges 0.04% and requires $3,000 to start. Fidelity's FXAIX charges 0.015%, and its FNILX runs a true 0.00%.
On a $10,000 balance, the entire spread between 0.00% and 0.04% is four dollars a year. At that point, pick the company whose account experience and tools you actually like, because the fee war is effectively over.
Who Charles Schwab Index Funds Fit Best
These funds tend to fit investors who want automatic, dollar-based investing inside a Schwab account, whether that is a brokerage account, a Roth IRA, or a rollover IRA. They may not fit if you want intraday trading or plan to switch brokerages often, since the ETF versions travel better.
Whatever you choose, consistency beats fund selection. A budgeting app like Monarch Money can help you find a monthly contribution you can sustain, then track your accounts and net worth in one dashboard so you can see the plan working. Firstcard readers get 50% off the first year, and our Monarch Money review has the details.
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This article is educational, not personalized investment advice. All investing involves risk, including possible loss of principal, and past performance does not guarantee future results.
Frequently Asked Questions
Do Charles Schwab index funds have minimum investments?
No. Schwab's index mutual funds, including SWPPX and SWTSX, have no investment minimum, so you can start with $1. That is a real advantage over Vanguard's Admiral shares, which typically require $3,000 per fund.
Is SWPPX or SCHX better?
They hold similar large-cap portfolios and both cost almost nothing as of July 2026. SWPPX suits automatic dollar-based investing at Schwab, while SCHX is an ETF you can hold at any brokerage. The better pick depends on where and how you invest.
Are Schwab index funds free to buy?
At Schwab, yes, there are no loads or transaction fees on Schwab's own index funds, just the expense ratio. At other brokerages you may pay a transaction fee per purchase, which is why most people hold them inside a Schwab account.
Can I lose money in a Schwab index fund?
Yes. Index funds hold stocks or bonds, and their value falls when markets fall. Low fees reduce your costs, but they do not remove market risk, which is why these funds typically suit long-term goals rather than short-term savings.
