SPRXX vs FZDXX
Side-by-side 7-day yields from the August 2026 month-end N-MFP filings.
Data: August 2026 month-end SEC filings
All figures are from the August 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.
- As of the August 2026 month-end filings, FZDXX's 7-day yield of 3.49% is 0.12 points above SPRXX's 3.37%.
| SPRXX | FZDXX | |
|---|---|---|
| Fund | Fidelity Money Market Fund | Fidelity Money Market Fund |
| Category | Prime | Prime |
| 7-day net yield | 3.37% | 3.49% |
| Yield as of | ||
| Net assets (class) | $11.9B | $121.6B |
| Series gross 7-day yield | 3.79% | 3.79% |
| Implied expense gap (gross − net) | 0.42% | 0.30% |
| WAM / WAL (days) | 21 / 22 | 21 / 22 |
| Daily / weekly liquid assets | 67.0% / 80.0% | 67.0% / 80.0% |
| Minimum initial investment | None | $100,000 |
| 2025 USGO income (state tax) | 14.56% | - |
| Manager | Fidelity Hereford Street Trust | Fidelity Hereford Street Trust |
Five-year yield history
FAQ
Which has a higher 7-day yield, SPRXX or FZDXX?
FZDXX - as of the August 2026 month-end SEC Form N-MFP filings, FZDXX's 7-day net yield of 3.49% is 0.12 percentage points above SPRXX's 3.37%.
Numbers only - this site makes no recommendation between funds. Both rows come from each fund's own August 2026 month-end Form N-MFP filing; yields move daily, so check each fund company for live figures (links on the SPRXX and FZDXX pages).