SPAXX vs SPRXX
Fidelity Government Money Market Fund vs Fidelity Money Market Fund
Which is better, SPAXX or SPRXX?
SPAXX and SPRXX are close on what we can measure.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | SPAXX | SPRXX |
|---|---|---|
| Expense Ratio | 0.42%Tie | 0.42%Tie |
| AUM | $423.8B | $11.8B |
| Dividend Yield | 3.15% | 3.20% |
| Holdings | 700 | 299 |
| Fund Family | Fidelity Investments (US) | Fidelity Investments (US) |
| Category | Money Market | Money Market |
| Inception | Feb 5, 1990 | Jan 23, 1989 |
SPAXX and SPRXX hold their share price at $1.00 and pay everything out, so a YTD Return, a 1Y, 3Y or 5Y Return, a Volatility and a Max Drawdown measured on that price would every one of them be zero, and none of them would mean anything. Those rows are left out. What separates two funds like these is the Dividend Yield and the Expense Ratio, both above.
Fees and Cost Over Time
SPAXX charges 0.42% per year while SPRXX charges 0.42%. On a $10,000 position that is $42 vs $42 annually. On income, SPAXX currently yields 3.15% against 3.20% for SPRXX.
Holdings Overlap
We hold position weights for 34 holdings in SPAXX and 3 in SPRXX, totalling 6.1% and 1.2% of the two funds. Neither is a share of a fund we can divide by, so no overlap percentage is shown here. Within what we can see, 3 positions appear in both.
3 positions in common, counted across the 34 positions we hold weights for in SPAXX and 3 in SPRXX, against full books of 700 and 299.
Top Shared Holdings
| Stock | Weight in SPAXX | Weight in SPRXX | Difference |
|---|---|---|---|
| B 0 08/06/26United States Treasury 0.00 08/06/2026 | 0.49% | 1.15% | 0.66% |
| T 4.375 08/15/26Us Treasury N/ 4.375 8/26 | 0.13% | 0.05% | 0.08% |
| T 0.875 09/30/26United States Treasury Note/Bond - When Issued .88% 30Sep2026 | 0.06% | 0.01% | 0.05% |
You are not choosing between two funds in isolation.
Whichever of SPAXX and SPRXX you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, SPAXX or SPRXX?
SPAXX has an expense ratio of 0.42% while SPRXX charges 0.42%. At the precision these are quoted to, they cost the same.
Which pays a higher dividend, SPAXX or SPRXX?
SPAXX yields 3.15% while SPRXX yields 3.20%, so SPRXX currently pays the higher dividend yield.
Is SPRXX better than SPAXX?
SPAXX and SPRXX are close on every measure we can compare. Which one suits a particular account depends on what it is for. This is information, not a recommendation.