Fidelity Government Money Market Fund Returns Calculator
Calculate historical returns and project future compounding for Fidelity Govt Money Market. Test different monthly amounts, tenures, and step-up scenarios using real historical NAV performance.
Category
Money Market (US)
AUM
$1.00 Million
Expense Ratio
0.42%
Fund Manager
Fidelity Management & Research (FMR Co)
Fidelity Govt Money Market Historical SIP Performance & Returns Table
Historical value of standard monthly SIP investments based on actual fund CAGRs.
| Monthly SIP | 3 Years @ 4.8% CAGR | 5 Years @ 3.2% CAGR | 10 Years @ 2.0% CAGR |
|---|---|---|---|
| $100/mo | $3,882 Invested: $3,600 | $6,518 Invested: $6,000 | $13,329 Invested: $12,000 |
| $250/mo | $9,706 Invested: $9,000 | $16,295 Invested: $15,000 | $33,322 Invested: $30,000 |
| $500/mo | $19,412 Invested: $18,000 | $32,590 Invested: $30,000 | $66,644 Invested: $60,000 |
| $1,000/mo | $38,823 Invested: $36,000 | $65,180 Invested: $60,000 | $133,287 Invested: $120,000 |
| $2,500/mo | $97,058 Invested: $90,000 | $162,950 Invested: $150,000 | $333,218 Invested: $300,000 |
* Projections calculated using actual historical 3-year (4.85%), 5-year (3.22%), and 10-year (2.05%) performance data. Actual mutual fund returns fluctuate with market NAV.
About Fidelity Government Money Market Fund
Fidelity's flagship government money market fund and core cash position. SPAXX invests in ultra-short US government obligations to maintain a stable $1.00 net asset value while paying competitive short-term yields.
Investment Strategy
Government Money Market Strategy â Invests at least 99.5% of total assets in cash, US government securities, and repurchase agreements fully collateralized by US government securities, targeting maximum safety and liquidity.
Key Facts
- Maintains a stable $1.00 net asset value (NAV) per share
- Invests at least 99.5% of assets in US government obligations and repo agreements
- No minimum initial investment required ($0 minimum)
- Default cash core settlement position for Fidelity brokerage and IRA accounts
Historical Returns
3-Year CAGR
4.85% (Compound Yield)
5-Year CAGR
3.22% (Compound Yield)
10-Year CAGR
2.05% (Compound Yield)
Benchmark
Crane Government Money Fund Index
Yields vary with interest rate conditions. Money market funds are not insured by the FDIC, though they seek to maintain a $1.00 share price.
Top Holdings & Sector Allocation
As of September 2026, Fidelity Govt Money Market's portfolio includes:
Top 5 Holdings
- U.S. Treasury Bills & Notes (~55-65%)
- U.S. Government Agency Repurchase Agreements (~35-45%)
- Cash & Cash Equivalents (<1%)
Sector Allocation
U.S. Treasury Securities 58.2%, Government Agency Repos 41.5%, Cash Equivalents 0.3%
Risk & Drawdowns
Near-zero NAV volatility. The fund seeks to preserve a constant $1.00 per share value.
Has maintained its $1.00 constant NAV throughout all historical market and liquidity stress periods.
Tax Treatment
Distributions are taxable as ordinary income for federal taxes. A substantial portion may be exempt from state/local taxes due to direct Treasury holdings.
Who Should NOT Invest in Fidelity Govt Money Market?
Long-term growth investors seeking wealth compounding or inflation-beating equity returns over 5+ year horizons.
About the Fund Manager
Managed by Fidelity's Fixed Income & Money Market team, overseeing hundreds of billions in liquidity strategies.
Who Is This Fund Suitable For?
Ideal for emergency funds, short-term cash reserves, parking cash between trades, and conservative investors requiring capital preservation with daily liquidity.
More Funds from Fidelity & Similar Schemes
Similar Funds to Consider
- Vanguard Federal Money Market Fund (VMFXX)
- Schwab Prime Advantage Money Fund (SWVXX)
- Fidelity Government Cash Reserves (FDRXX)
Or compare side by side using our main SIP calculator â you can test different funds with the same investment amount and dates to see which performed better.
Other Tools for Fidelity Govt Money Market Investors
- FIRE Calculator â Plan your retirement corpus with Fidelity Govt Money Market as part of your portfolio
- Cost of Delay Calculator â See how much delaying your SIP in Fidelity Govt Money Market could cost you
- SIP vs EMI Calculator â Compare investing in Fidelity Govt Money Market vs paying off loans
Frequently Asked Questions About Fidelity Govt Money Market
What is the historical SIP return of Fidelity Govt Money Market?
Based on the latest data, Fidelity Govt Money Market has delivered an annualized return (CAGR) of 4.85% (Compound Yield) over 3 years, 3.22% (Compound Yield) over 5 years, and 2.05% (Compound Yield) over 10 years. Has maintained its $1.00 constant NAV throughout all historical market and liquidity stress periods.
How is Fidelity Govt Money Market SIP return calculated?
SIP returns are calculated using the XIRR (Extended Internal Rate of Return) method. Each monthly installment buys units at the fund's Net Asset Value (NAV) on that specific day. When markets are down, your SIP buys more units, and when markets are up, it buys fewer units (rupee cost averaging). Our calculator replays this exact process using historical NAV data to compute the precise current value of your accumulated units.
How much return would $500 monthly SIP in Fidelity Govt Money Market generate over 5 years?
At an estimated annual return rate of 3.22%, a monthly $500 investment ($30,000 total invested) would grow to approximately $32,590 in 5 years, yielding an estimated wealth gain of $2,590. Use our interactive calculator above to test custom amounts with actual historical NAV data.
What are the top holdings in Fidelity Govt Money Market?
Fidelity Govt Money Market's top holdings include U.S. Treasury Bills & Notes (~55-65%), U.S. Government Agency Repurchase Agreements (~35-45%), Cash & Cash Equivalents (<1%), and others. The fund's sector allocation is U.S. Treasury Securities 58.2%, Government Agency Repos 41.5%, Cash Equivalents 0.3%.
What is the risk profile of Fidelity Govt Money Market?
Near-zero NAV volatility. The fund seeks to preserve a constant $1.00 per share value. This fund may not be suitable for long-term growth investors seeking wealth compounding or inflation-beating equity returns over 5+ year horizons..
What are the tax implications of investing in Fidelity Govt Money Market?
Distributions are taxable as ordinary income for federal taxes. A substantial portion may be exempt from state/local taxes due to direct Treasury holdings.
Data last updated: September 2026 | Fund data sourced from SEC filings and public exchanges
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