What would you do with $10,000 sitting in a brokerage account earning almost nothing? That question pushes a lot of investors toward money market funds, and Charles Schwab’s lineup is one of the most common landing spots. The appeal is simple: park cash, keep it liquid, and collect a yield that moves with short-term interest rates. The details are where people get tripped up.
This guide walks through what Schwab money market funds actually hold, how their two main retail options differ, what the rules require, and the practical mistakes that cost investors money. It also covers taxes, the difference between a fund and a sweep program, and how to decide whether any of it belongs in your plan. (Gift card scam works victims rarely get their money back)
What Are Schwab Money Market Funds, Exactly?
A money market fund is a type of mutual fund that invests in short-term, high-quality debt. Think Treasury bills, bank certificates of deposit, commercial paper from large companies, and repurchase agreements. The goal is not growth. The goal is stability plus income.
Schwab runs its own family of these funds alongside the thousands of third-party funds available on its platform. The two retail funds most investors encounter are:
| Fund | Ticker | Type | What It Holds |
|---|---|---|---|
| Schwab Value Advantage Money Fund | SWVXX | Prime | Corporate and bank short-term debt |
| Schwab Government Money Fund | SNOXX | Government | Treasuries, agency securities, repurchase agreements |
Both aim to keep a stable $1.00 net asset value (NAV), meaning a share is designed to be worth a dollar. Both pay dividends that fluctuate. Neither is a savings account, and neither carries FDIC insurance.
Schwab also offers multiple share classes across its money fund lineup, typically labeled Investor, Select, and Premier. Higher share classes usually require larger minimum investments but carry lower expense ratios. If you are deciding between them, the math is straightforward: compare the expense ratio against the balance you can commit.
Prime vs. Government: The Choice That Actually Matters
Most of the decision comes down to one trade-off. Prime funds like SWVXX historically pay more because they take slightly more credit risk. Government funds like SNOXX pay less but sit inside a more protected regulatory category.
Under Rule 2a-7, the SEC rule that governs money market funds, funds must hold short-maturity, high-quality assets and maintain a stable share price. The rule also splits funds into categories, and that split has real consequences. Retail prime funds can impose liquidity fees and redemption gates if their weekly liquid assets fall below a threshold. Government funds are generally exempt from those tools. (Investor.gov: Mutual Funds and Exchange-Traded Funds)
That exemption is not a technicality. In 2008 and again in 2020, prime funds faced stress that government funds largely avoided. If your cash is an emergency reserve you might need on short notice, the lower yield of a government fund buys you a category that has historically held up better under pressure.
The SEC’s 2023 amendments to the rule tightened things further, raising minimum liquidity requirements and removing the temporary fee and gate suspension that had applied to government funds. The practical takeaway for investors: the regulatory floor under government funds got a little firmer, and prime funds still carry the fee-and-gate possibility.
How Yields Work, and Why Your Number Keeps Changing
Money market fund yields are variable. They track short-term interest rates, which means a yield quoted today may be different in a month. Anyone who locked in a mental picture of 2023 or 2024 yields and assumed it would last learned this the hard way.
There are two yields you will see quoted, and they are not the same:
- 7-day yield reflects income over the past seven days, annualized. It is a snapshot.
- SEC yield is a standardized measure based on the most recent 30 days. It is better for comparisons.
Always compare expense ratios alongside yield. A fund yielding 0.05% more but charging 0.20% more in fees is a worse deal. Schwab’s Investor-class shares typically carry higher expense ratios than Select or Premier shares, which is why the share class question matters more than most people expect.
One more thing worth saying plainly: a money market fund can break the buck, meaning its NAV falls below $1.00. It is rare, and it has happened. The SEC’s investor bulletin on money market funds explains the mechanics and the risks in plain language, and it is worth fifteen minutes before you move a large balance.
The Sweep Account Confusion
Here is a mistake that catches people constantly. They open a Schwab brokerage account, see cash sitting there, and assume it is automatically in SWVXX earning the quoted yield. Often it is not.
Brokerage accounts use a cash sweep feature, which automatically moves uninvested cash into a default vehicle. Depending on the account type and the program terms in effect, that default may be a bank sweep paying a modest rate rather than a money market fund. Sweep program details change, so the only reliable move is to check your own account’s current sweep disclosure and confirm where your cash actually lands.
If the default is not what you want, you can usually buy into a money fund manually. That introduces a step most people forget: money funds are mutual funds, so purchases and redemptions settle at the end of the trading day, not instantly. If you need cash for a wire or a trade tomorrow morning, you may need to sell a day ahead. Investors who treat a money fund like a checking account get burned by settlement timing at exactly the wrong moment.
Practical Tips That Actually Help
A few habits separate people who use these funds well from people who fight with them.
Check the prospectus, not the marketing page. Yields on fund pages are updated constantly, but expense ratios, minimums, and holdings are in the prospectus and the most recent holdings report. Read the fee table first.
Match the fund to the job. Emergency reserves belong in a government fund. Cash you are staging for a known purchase in a few months can reasonably sit in a prime fund if you accept the gate risk. Cash you need this week should not be in either.
Watch the calendar. Dividends accrue daily but are typically paid monthly. If you buy mid-month and sell before the payment date, you still earn the accrued income, but the mechanics can confuse anyone reconciling a statement.
Do not chase a basis point. Moving $5,000 between funds to capture a 0.03% yield difference earns you about $1.50 a year. It is not worth the settlement risk or the paperwork.
Revisit annually. Yields move, share class minimums change, and your cash needs change. A fifteen-minute annual review beats a decade of autopilot.
Taxes: The Part People Skip
Tax treatment varies by fund type, and the difference is bigger than most investors realize.
Income from government money market funds is generally exempt from state and local income tax, because it comes from U.S. Treasury and agency obligations. Income from prime funds is generally taxable at the state level as well as federally. If you live in a state with a high income tax, that difference can erase a meaningful chunk of the prime fund’s yield advantage.
The rule of thumb: compare after-tax yields, not headline yields. Your marginal state rate is the number to use. Someone in a no-income-tax state faces a different calculation than someone in California or New York.
Funds publish tax information each year showing what percentage of income came from government obligations. That figure is what you or your tax preparer need at filing time. Keep the annual tax supplement with your records rather than hunting for it in April.
Where Money Funds Fit in a Bigger Plan
Money market funds are a cash tool, not an investment strategy. They preserve purchasing power and provide liquidity. They do not build wealth over decades.
That distinction matters because cash-heavy portfolios feel safe and quietly underperform. If you are holding two years of expenses in a money fund because it feels comfortable, the comfort has a cost. A common approach is to size the cash bucket to actual near-term needs and invest the rest according to a longer horizon.
For readers thinking about where cash and short-term instruments sit in a broader financial picture, including how central bank digital currency proposals could reshape the landscape of everyday money, that is a separate conversation worth following. The same goes for anyone weighing speculative bets against boring cash reserves; understanding how prediction markets price uncertain events is a useful contrast to the certainty of a Treasury-backed fund.
Costs also deserve scrutiny across the board. Investors who scrutinize a fund’s 0.3% expense ratio but ignore larger recurring costs elsewhere in their financial life are optimizing the wrong line item. It helps to understand where identity and fraud protection money actually goes, since account security is part of the same cash-management picture, and to know how scam losses really play out, because a drained account makes yield irrelevant. (Identity threat detection really costs where money goes)
Common Mistakes to Avoid
A short list of things that go wrong, drawn from how these funds are actually used:
- Assuming brokerage cash is automatically in a money fund when it is sitting in a bank sweep.
- Buying a prime fund for an emergency reserve without understanding liquidity fees and gates.
- Comparing yields without comparing expense ratios or share classes.
- Forgetting settlement timing and missing a payment deadline.
- Ignoring state tax treatment on prime fund income.
- Treating a money fund as FDIC-insured when it is not.
None of these are exotic. They are ordinary oversights, and each one has a fix that takes minutes.
Conclusion
Schwab money market funds do one job well: they turn idle cash into modest, liquid income within a regulated structure. The two retail funds most investors meet, SWVXX and SNOXX, differ mainly in what they hold and how much regulatory protection surrounds them. Prime funds pay more and carry fee-and-gate risk. Government funds pay less and sit in a safer category.
The decisions that matter are not complicated. Confirm where your sweep cash actually goes. Compare after-tax yields, not headline ones. Match the fund to the job the cash is doing. Read the fee table before the marketing page. And remember that a money fund is a parking spot, not an engine. Used that way, it does exactly what it promises.
FAQ
Are Schwab money market funds FDIC insured?
No. Money market funds are investment products, not bank deposits, so they carry no FDIC insurance. They aim to maintain a stable $1.00 NAV, but that is a goal, not a guarantee, and a fund can fall below it. If you want FDIC coverage, a bank deposit or a Treasury-only approach is a different product category.
What is the difference between SWVXX and SNOXX?
SWVXX is a prime fund holding short-term corporate and bank debt, and it typically yields more. SNOXX is a government fund holding Treasuries, agency securities, and repurchase agreements, and it typically yields less. The trade-off is that retail prime funds can impose liquidity fees and redemption gates under stress, while government funds are generally exempt from those tools.
Can I lose money in a Schwab money market fund?
Yes, in two ways. The fund can break the buck and fall below $1.00 per share, which is rare but has happened in the industry. Separately, if inflation outpaces the fund’s yield, your purchasing power declines even though the share price holds steady. Money funds are low-risk, not no-risk.
Is my brokerage cash automatically invested in a Schwab money market fund?
Not necessarily. Brokerage accounts use a cash sweep feature that moves uninvested cash into a default vehicle, and depending on your account type and the program terms in effect, that default may be a bank sweep rather than a money fund. Check your account’s current sweep disclosure and confirm where the cash actually sits.
How often do money market fund yields change?
Yields reset continuously as the fund’s underlying holdings mature and get replaced. The quoted 7-day yield is a rolling snapshot, so it can move noticeably within weeks when short-term rates shift. Do not treat a quoted yield as a fixed rate, and compare SEC yields when evaluating alternatives.
Are government money market fund dividends exempt from state tax?
Generally yes. Income from government money market funds is typically exempt from state and local income tax because it derives from U.S. Treasury and agency obligations. Prime fund income is generally taxable at the state level. Funds publish an annual tax supplement showing the percentage of income from government obligations, which is the figure to use at filing time.
