Money Market Mutual Funds and FDIC Insurance: What You Need to Know
Money market mutual funds are not covered by FDIC insurance
The Federal Deposit Insurance Corporation (FDIC) insures deposits held directly at banks and credit unions — not investments you buy through a mutual fund company. If you own shares of a money market mutual fund, your money is not protected by FDIC coverage, even if the fund invests in bank CDs or Treasury bills. The fund itself may fail, and you could lose your principal.
This is the most important distinction to understand. A money market mutual fund is an investment product managed by a fund company. The FDIC protects bank deposits, which are a different category of financial product. The two are not interchangeable, and holding one does not give you the protections of the other.
Key Takeaways
- Money market mutual funds are not FDIC-insured because they are investments, not bank deposits.
- If a money market fund company fails, you could lose money even if the fund holds low-risk assets like Treasury bills.
- Money market funds are protected by Securities Investor Protection Corporation (SIPC) coverage, which covers up to $500,000 per account if the fund company fails.
- FDIC insurance applies only to money you deposit directly at a bank or credit union, not to mutual funds held at any financial institution.
- Money market funds aim to maintain a stable share price of $1, but that price can fall below $1 if the fund's holdings lose value.
How FDIC insurance actually works
The FDIC insures deposits you place directly with a bank or credit union. This means if you put $50,000 in a savings account at your bank, and the bank fails, the FDIC will reimburse you up to $250,000 per depositor, per bank. The coverage is automatic — you do not need to sign up for it.
FDIC coverage does not extend to investments. If you buy stocks, bonds, mutual funds, or ETFs through a bank's brokerage arm, those holdings are not FDIC-insured. The bank may fail, but your investments are held separately and protected under different rules. This is true even if you buy those investments at your bank's branch.
Money market mutual funds fall into the investment category. You are buying shares of a fund managed by an investment company, not depositing money with a bank. The fund company holds the actual assets — Treasury bills, commercial paper, bank CDs — but you own a share of the fund, not the underlying assets directly.
What protects money market mutual funds instead
Money market mutual funds are protected by the Securities Investor Protection Corporation (SIPC), not the FDIC. SIPC covers up to $500,000 per customer account if the fund company or brokerage firm fails. This protection covers the value of your shares at the time of failure, not a may provide return.
SIPC protection is different from FDIC insurance in a critical way: SIPC protects you if the fund company or brokerage goes out of business and cannot return your money. It does not protect you if the fund's investments lose value. If a money market fund's holdings decline in price, your shares decline with them, and SIPC does not compensate you for that loss.
Most money market mutual funds also carry additional protections through their fund company's internal policies and regulatory oversight by the Securities and Exchange Commission (SEC). The SEC requires money market funds to hold only short-term, high-quality debt instruments and to disclose their holdings regularly. These rules reduce risk but do not eliminate it.
The difference between a money market fund and a money market deposit account
Banks offer a product called a money market deposit account (MMDA), which is FDIC-insured. This is a bank deposit, not a mutual fund. If you open a money market deposit account at your bank, your money is covered by FDIC insurance up to $250,000.
The names are similar, which causes confusion. A money market mutual fund is an investment. A money market deposit account is a bank deposit. They work differently, carry different protections, and offer different returns. If FDIC insurance is important to you, you need the deposit account, not the mutual fund.
Money market deposit accounts typically pay lower interest rates than money market mutual funds because the bank is using FDIC-insured deposits for its own purposes. Money market mutual funds aim to pay higher returns by investing in slightly riskier short-term debt, but you give up FDIC protection to get that higher yield.
When a money market fund can lose value
Money market mutual funds aim to keep their share price stable at $1 per share. This is called "breaking the buck" when it does not happen. While rare, it is possible. If the fund's holdings decline in value — for example, if a company that issued commercial paper defaults — the fund's share price can fall below $1.
This happened during the 2008 financial crisis, when several money market funds experienced losses and some suspended redemptions (the ability to withdraw your money). Investors in those funds lost money. FDIC insurance would not have protected them, and SIPC coverage would not have compensated them for the investment loss.
Money market funds are considered low-risk investments, but they are not risk-free. The lower the yield a fund offers, the lower the risk it is taking. A fund offering 4% yield is taking more risk than a fund offering 2%, even if both are money market funds.
How to know if your money is FDIC-insured
Ask yourself: Did I deposit this money directly with a bank or credit union, or did I buy an investment through a fund company or brokerage? If you deposited it directly with a bank or credit union, it is likely FDIC-insured (up to $250,000 per depositor, per bank). If you bought an investment product, it is not FDIC-insured.
If you are unsure, check your account statement or contact your financial institution. The statement should say whether you hold a deposit account or an investment account. If you hold a money market mutual fund, the statement will show the fund name, the number of shares you own, and the share price — not a deposit balance.
You can also search the FDIC's Bank Find tool on the FDIC website to confirm whether your bank is FDIC-insured and what your coverage limit is. This tool does not tell you about mutual funds, only about deposits at banks and credit unions.
Frequently Asked Questions
If I buy a money market mutual fund at my bank, is it FDIC-insured?
No. Even though you buy it at your bank, a mutual fund is an investment, not a deposit. Your bank may be FDIC-insured, but the mutual fund itself is not. The fund is protected by SIPC coverage if the fund company fails, but not by FDIC insurance.
What happens to my money market fund if the fund company goes out of business?
Your shares are protected by SIPC coverage up to $500,000 per account. The fund company's assets are held separately from the company's own money, so your shares should be returned to you or transferred to another fund company. You would not lose your money simply because the company failed, though the process can take time.
Is a money market deposit account the same as a money market mutual fund?
No. A money market deposit account is a bank deposit and is FDIC-insured. A money market mutual fund is an investment and is not FDIC-insured. They have similar names but work differently and carry different protections. Check your account statement to see which one you own.
Can a money market fund go to zero?
Extremely unlikely, but theoretically possible. Money market funds hold only short-term, high-quality debt, so the risk is low. However, if many of the fund's holdings defaulted at once, the fund's value could decline significantly. In practice, this has not happened, but the fund's value can fall below $1 per share.
If I want FDIC insurance, what should I buy instead?
Open a money market deposit account at a bank or credit union, or buy a certificate of deposit (CD). Both are FDIC-insured deposits. You will receive lower returns than a money market mutual fund, but your money will be protected up to $250,000 per depositor, per bank.