Money Market Funds vs Savings Accounts
Similar yields, different protections. The difference only shows up in a crisis.
At a glance
Figures checked 1 Sep 2026
Ticker
Government examples: SPAXX, VMFXX, SWVXX
Expense ratio
0.09% to 0.42%
Distribution yield
Tracks short-term rates, currently near the federal funds target of 3.50% to 3.75%
Risk level
Low
Tax treatment
Ordinary income; Treasury-heavy funds may be partly state-tax exempt
What to take away
- Money market funds are securities, not deposits — no FDIC insurance applies.
- Government and Treasury funds carry less credit risk than prime funds.
- Yields move with the Fed quickly, in both directions.
A money market fund holds very short-term, high-quality debt and aims to keep a stable share price while passing through interest. Yields currently sit close to short-term rates, which makes them competitive with the best savings accounts.
| Money market fund | High-yield savings | |
|---|---|---|
| Protection | SIPC covers broker failure, not investment loss | FDIC or NCUA to $250,000 |
| Yield | Moves with short-term rates immediately | Bank sets it, often with a lag |
| Access | Settlement usually next business day | Transfer in one to two days |
| State tax | Treasury portion may be exempt | Fully taxable |
SIPC protects you if the brokerage fails; it does not protect against the fund losing value. It is rare, and it is not the same promise a bank deposit carries.
Common questions
A government or Treasury money market fund for most purposes. Prime funds add a little yield and a little credit risk.