Wealthy PotSWPPX vs SWTSX: Schwab's S&P 500 Fund or Its Total Market Fund?
Schwab's two core U.S. equity index funds sit right next to each other in most Schwab accounts, and the difference between them is easy to state. SWPPX buys the S&P 500 for 0.020%. SWTSX buys the entire U.S. stock market for 0.030%. Neither has a minimum. Unlike the Fidelity and Vanguard equivalents, there is a genuine, if small, fee difference here, so it is worth knowing what the extra costs you and what it buys.
The Short Answer
- Want the cheapest broad U.S. index fund at Schwab? SWPPX. At 0.020% it is the lower-cost option, and the S&P 500 is the standard large-cap benchmark.
- Want one fund to cover U.S. stocks completely? SWTSX. The extra 0.010% a year buys total-market coverage, so mid-caps and small-caps are never left out by accident.
Both are legitimate core holdings. The fee difference is one basis point, which is not large enough to be the deciding factor for most people.
SWPPX vs SWTSX Side by Side
| Feature | SWPPX | SWTSX |
|---|---|---|
| Full name | Schwab S&P 500 Index Fund | Schwab Total Stock Market Index Fund |
| Index tracked | S&P 500 | Dow Jones U.S. Total Stock Market Index |
| What it owns | Large-cap U.S. companies | The whole U.S. market: large, mid and small caps |
| Total expense ratio | 0.020% | 0.030% |
| Minimum | None | None |
| Wrapper | Mutual fund | Mutual fund |
The Fee Gap, in Dollars
The difference is 0.010% a year, one basis point. Put into money:
- On $10,000: SWPPX costs $2 a year, SWTSX costs $3. A difference of $1.
- On $100,000: $20 against $30. A difference of $10.
- On $500,000: $100 against $150. A difference of $50.
This is a real difference and it is also a small one. It is not a good reason to accept narrower market coverage if you actually want the total market, and it is not a good reason to pay more if the S&P 500 is what you wanted anyway. Let the coverage decide, and treat the basis point as a tiebreaker at most.
What Each One Tracks
SWPPX follows the S&P 500, the index of large U.S. companies selected by a committee according to published criteria. It is the most widely quoted U.S. equity benchmark in existence.
SWTSX follows the Dow Jones U.S. Total Stock Market Index, which aims to capture the investable U.S. equity market rather than a selected subset. That is a genuinely broader mandate.
In practice both funds weight holdings by market value, so the largest companies dominate either way. SWTSX's thousands of additional smaller holdings change the fund's composition at the margins without changing what drives most of its return. Expect the two to move closely together, with one pulling slightly ahead whenever large caps or smaller companies happen to be leading.
No Minimum on Either
Schwab's index mutual funds carry no investment minimum, which is a meaningful practical advantage over Vanguard's Admiral share classes and their $3,000 threshold. You can start either fund with a small amount and add to it in exact dollar amounts, which suits automatic monthly contributions well.
That removes the usual reason a beginner would be pushed toward an ETF instead. At Schwab you can simply buy the mutual fund from the first dollar.
When Not to Switch
If you hold one of these in a taxable account and it has grown, selling to switch realises a capital gain and triggers tax. Paying that bill to capture one basis point, or to shift between two funds that behave almost identically, does not add up. The saving would take many years to recover the tax cost.
In an IRA the switch is free of tax consequences, so act on a genuine preference if you have one.
If you hold both funds already, consider consolidating into one. They overlap so heavily that owning both adds complexity without adding diversification.
Which One Fits You
Pick SWPPX if you want the lowest cost, prefer the best-known benchmark, or are deliberately building your portfolio from separate large-, mid- and small-cap pieces.
Pick SWTSX if you want a single fund to handle U.S. stocks entirely and consider one basis point a fair price for not having to think about market-cap gaps again.
Both are cheap, broad and suitable as the core of a portfolio. The choice between them will matter far less to your outcome than how much you invest and how consistently you keep at it.
FAQ
Which is cheaper, SWPPX or SWTSX?
SWPPX, at 0.020% against 0.030%. On $100,000 that is $20 a year against $30.
Does SWTSX contain the S&P 500?
Yes. SWTSX tracks the total U.S. market, which includes the S&P 500 companies plus thousands of smaller ones.
Is there a minimum investment?
No. Schwab's index mutual funds have no investment minimum, so you can start with any amount.
Should I own both?
Generally no. The overlap is very high, so owning both mostly increases your large-cap weighting rather than diversifying the portfolio.
How do these compare with Vanguard or Fidelity equivalents?
All three providers offer broadly similar S&P 500 and total-market index funds at very low cost. Fees differ by hundredths of a percent. The practical differences are usually minimums and which brokerage you already use, not fund quality.
This article is for general information and is not investment advice. Fund figures were taken from Schwab Asset Management's published fund pages on 2026-09-21 and can change; confirm current figures before you invest.