MFS US Government Money Market Fund (MCMXX)
1.00
0.00 (0.00%)
USD |
Oct 02 2026
Returns Chart
Key Stats
| Net Expense Ratio | Total Assets Under Management | Weighted Average Dividend Yield | Turnover Ratio (Generic) |
|---|---|---|---|
| 0.45% | 312.17M | -- | -- |
| 1 Year Fund Level Flows | 1 Year Total Returns (Daily) | Annualized Total Returns Since Inception (Daily) | Max Drawdown (Since Inception) |
| -48.87M | 3.35% |
Basic Info
| Investment Strategy | |
| The Fund seeks as high a level of current income as is considered consistent with the preservation of capital and liquidity. |
| General | |
| Security Type | Money Market Fund |
| Equity Style | -- |
| Broad Asset Class | Money Market |
| Broad Category | Capital Preservation |
| Global Peer Group | Money Market USD |
| Peer Group | U.S. Government Money Market Funds |
| Global Macro | Money Market HC |
| US Macro | Taxable Money Market Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | U.S. Government Money Market Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^BBUTB13MTR | 100.0% |
Net Fund Flows Versus Peer Group
1 Month
% Rank:
49
-2.911B
Peer Group Low
6.802B
Peer Group High
1 Year
% Rank:
54
-48.87M
-20.13B
Peer Group Low
40.92B
Peer Group High
3 Months
% Rank:
44
-24.33B
Peer Group Low
13.75B
Peer Group High
3 Years
% Rank:
79
-3.544B
Peer Group Low
142.94B
Peer Group High
6 Months
% Rank:
38
-22.90B
Peer Group Low
18.11B
Peer Group High
5 Years
% Rank:
77
-37.99B
Peer Group Low
184.89B
Peer Group High
YTD
% Rank:
55
-16.76B
Peer Group Low
11.99B
Peer Group High
10 Years
% Rank:
74
-10.19B
Peer Group Low
328.60B
Peer Group High
Date Unavailable
Risk
Performance Versus Peer Group
Annual Total Returns Versus Peers
As of October 05, 2026.
Asset Allocation
As of July 31, 2026.
| Type | % Net |
|---|---|
| Cash | 37.41% |
| Stock | 0.00% |
| Bond | 62.59% |
| Convertible | 0.00% |
| Preferred | 0.00% |
| Other | 0.00% |
Top 10 Holdings
| Name | % Weight | Price | % Change |
|---|---|---|---|
|
Fixed Income Clearing Corp Repo
|
18.74% | -- | -- |
|
BofA Securities Inc Repo
|
18.74% | -- | -- |
| United States of America USGB 0.0 10/06/2026 FIX USD Government | 6.61% | 100.00 | 0.01% |
| United States of America USGB 0.0 10/13/2026 FIX USD Government | 3.61% | 99.92 | 0.01% |
| United States of America USGB 0.0 11/27/2026 FIX USD Government | 3.58% | 99.43 | 0.01% |
| Federal Farm Credit Bank FEDEFAR 08/03/2026 FIX USD Corporate (Matured) | 3.39% | -- | -- |
| United States of America USGB 09/24/2026 FIX USD Government (Matured) | 3.28% | 100.00 | 0.01% |
| United States of America USGB 0.0 12/10/2026 FIX USD Government | 3.12% | 99.29 | 0.01% |
| FEDERAL NATIONAL MORTGAGE ASSOCIATION FNMA-New 08/26/2026 FIX USD Agency (Matured) | 3.06% | 99.99 | 0.01% |
| Federal Home Loan Banks FHLB 0.0 10/16/2026 FIX USD Agency | 3.00% | 99.88 | 0.03% |
Fees & Availability
| Fees | |
| Actual 12B-1 Fee | -- |
| Actual Management Fee | 0.25% |
| Administration Fee | 60228.00 None |
| Maximum Front Load | -- |
| Maximum Deferred Load | -- |
| Maximum Redemption Fee | -- |
| General Availability | |
| Available for Insurance Product | No |
| Available for RRSP | No |
| Purchase Details | |
| Open to New Investors | No |
| Minimum Initial Investment | 1000.00 None |
| Minimum Subsequent Investment | 50.00 None |
TTM Distributions
| Type | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Qualified Income
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Normal
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Qualified
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
LT Cap Gains
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Ordinary Income
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Non-Qual
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
ST Cap Gains
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Interest
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Tax-Exempt
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
ROC
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Other
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
|
Total
|
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
As of September 30, 2026.
Basic Info
| Investment Strategy | |
| The Fund seeks as high a level of current income as is considered consistent with the preservation of capital and liquidity. |
| General | |
| Security Type | Money Market Fund |
| Equity Style | -- |
| Broad Asset Class | Money Market |
| Broad Category | Capital Preservation |
| Global Peer Group | Money Market USD |
| Peer Group | U.S. Government Money Market Funds |
| Global Macro | Money Market HC |
| US Macro | Taxable Money Market Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | U.S. Government Money Market Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^BBUTB13MTR | 100.0% |
Fundamentals
| General | |
| Distribution Yield | -- |
| Dividend Yield TTM (10-2-26) | 3.32% |
| 30-Day SEC Yield (12-31-19) | 1.00% |
| 7-Day SEC Yield (8-31-26) | 3.28% |
| Number of Holdings | 24 |
| Bond | |
| Yield to Maturity (7-31-26) | -- |
| Effective Duration | -- |
| Average Coupon | -- |
| Calculated Average Quality | -- |
| Effective Maturity | -- |
| Nominal Maturity | -- |
| Number of Bond Holdings | 21 |
As of July 31, 2026
Fund Details
| Key Dates | |
| Inception Date | 12/19/1975 |
| Last Annual Report Date | 8/31/2025 |
| Last Prospectus Date | 12/29/2025 |
| Attributes | |
| Index Fund | -- |
| Inverse Fund | No |
| Leveraged Fund | -- |
| Fund of Funds | No |
| Currency Hedged Fund | -- |
| Socially Responsible Fund | No |
Top Portfolio Holders
| Name | % Weight |
|---|---|
| Portfolio A | 5.00% |
| Portfolio B | 3.50% |
| Portfolio C | 2.25% |