SPAXX — Fidelity Government Money Market Fund
7-day yield, assets, and how it ranks — from the June 2026 month-end N-MFP filing.
All figures are from the June 2026 month-end Form N-MFP filings (report date ) — money-market funds must file within five business days of month-end. Regulatory data, not live quotes.
7-day net yield
3.29%
as of
Net assets (class)
$424.5B
June 2026 month-end
Category
Government
fund's own N-MFP classification
Minimum initial investment
None
as reported on N-MFP
- As of the Form N-MFP filing (June 2026 month-end), SPAXX (Fidelity Government Money Market Fund) has a 7-day net yield of 3.29%.
- SPAXX's 7-day yield ranks #492 of 873 US money-market fund ticker share classes reporting a yield for June 2026.
- SPAXX is a Government money-market fund share class with $424.5B in net assets (#1 of 873 ticker classes by size).
- The fund's series-level 7-day gross yield was 3.71% — the 0.42-point gap to this class's net yield reflects fund expenses.
Other share classes of this fund
| Class | Ticker | 7-day yield | Net assets | Min. investment |
|---|---|---|---|---|
| Fidelity Government Money Market Fund - Premium Class | FZCXX | 3.39% | $14.0B | $100,000 |
| Fidelity Government Money Market Fund - Daily Money Class | FZBXX | 3.01% | $9.2B | None |
| Fidelity Government Money Market Fund - Class K6 | FNBXX | 3.46% | $4.9B | None |
| Fidelity Government Money Market Fund - Capital Reserves Class | FZAXX | 2.76% | $3.8B | None |
| Fidelity Government Money Market Fund - Class M | FZGXX | 3.01% | $225.5M | None |
| Fidelity Government Money Market Fund - Class S | FZSXX | 3.29% | $168.9M | None |
Compare
VMFXX vs SPAXX · SPAXX vs FDLXX · SWVXX vs SPAXX · SPAXX vs SPRXX
Fund context & source
Fidelity Government Money Market Fund is a series of Fidelity Hereford Street Trust (SEC series ID S000007051). The whole series held $456.9B across all share classes at June 2026 month-end.
This page shows the class's month-end regulatory filing, not a live quote — 7-day yields move daily. For today's yield, check Fidelity. Verify the filing itself on EDGAR: N-MFP filings for this series.