MFS Government Securities Fund B (MFGBX)
8.54
+0.02
(+0.23%)
USD |
Jun 09 2026
Returns Chart
Key Stats
| Net Expense Ratio | Total Assets Under Management | Weighted Average Dividend Yield | Turnover Ratio (Generic) |
|---|---|---|---|
| 1.52% | 1.923B | -- | 53.00% |
| 1 Year Fund Level Flows | 1 Year Total Returns (Daily) | Annualized Total Returns Since Inception (Daily) | Max Drawdown (Since Inception) |
| -19.69M | 3.29% |
Basic Info
| Investment Strategy | |
| The Fund seeks total return with an emphasis on current income, but also considering capital appreciation. The Fund invests at least 80% its net assets in U.S. Government securities but may also invest in other debt instruments. It generally invests all of the funds assets in investment grade quality debt instruments. |
| General | |
| Security Type | Mutual Fund |
| Equity Style | -- |
| Broad Asset Class | Taxable Bond |
| Broad Category | Fixed Income |
| Global Peer Group | Bond USD Medium Term |
| Peer Group | Intermediate U.S. Government Funds |
| Global Macro | Bond HC |
| US Macro | Short-/Intermediate-Term U.S. Government & Treasury Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | Intermediate U.S. Government Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^BBUSATR | 100.0% |
Net Fund Flows Versus Peer Group
1 Month
% Rank:
68
-35.16M
Peer Group Low
1.022B
Peer Group High
1 Year
% Rank:
61
-19.69M
-332.41M
Peer Group Low
10.07B
Peer Group High
3 Months
% Rank:
94
-56.84M
Peer Group Low
1.902B
Peer Group High
3 Years
% Rank:
89
-2.890B
Peer Group Low
29.25B
Peer Group High
6 Months
% Rank:
84
-100.67M
Peer Group Low
6.374B
Peer Group High
5 Years
% Rank:
79
-4.006B
Peer Group Low
38.24B
Peer Group High
YTD
% Rank:
89
-74.90M
Peer Group Low
5.420B
Peer Group High
10 Years
% Rank:
46
-4.734B
Peer Group Low
48.20B
Peer Group High
Date Unavailable
Risk
Performance Versus Peer Group
Annual Total Returns Versus Peers
As of June 10, 2026.
Asset Allocation
As of April 30, 2026.
| Type | % Net |
|---|---|
| Cash | -0.61% |
| Stock | 0.00% |
| Bond | 94.72% |
| Convertible | 0.00% |
| Preferred | 0.00% |
| Other | 5.89% |
Top 10 Holdings
| Name | % Weight | Price | % Change |
|---|---|---|---|
| United States of America USGB 2.5 02/15/2045 FIX USD Government | 3.53% | 69.27 | 0.56% |
| United States of America USGB 3.625 03/31/2028 FIX USD Government | 3.37% | 99.12 | 0.05% |
| United States of America USGB 2.75 02/15/2028 FIX USD Government | 2.75% | 97.78 | 0.04% |
| United States of America USGB 1.25 04/15/2031 FIX USD Government | 2.30% | 97.46 | 0.09% |
| United States of America USGB 4.125 08/31/2030 FIX USD Government | 1.96% | 99.55 | 0.15% |
| United States of America USGB 1.625 05/15/2031 FIX USD Government | 1.93% | 88.35 | 0.17% |
| United States of America USGB 4.75 02/15/2045 FIX USD Government | 1.85% | 96.84 | 0.49% |
|
Federal National Mortgage Association 2% 01-MAY-2056
|
1.85% | -- | -- |
| United States of America USGB 4.25 08/15/2035 FIX USD Government | 1.63% | 98.10 | 0.28% |
| United States of America USGB 1.0 07/31/2028 FIX USD Government | 1.56% | 93.62 | 0.08% |
Fees & Availability
| Fees | |
| Actual 12B-1 Fee | 1.00% |
| Actual Management Fee | 0.36% |
| Administration Fee | 53.00% |
| Maximum Front Load | -- |
| Maximum Deferred Load | 4.00% |
| Maximum Redemption Fee | 0.00% |
| 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 | 0.00 None |
Basic Info
| Investment Strategy | |
| The Fund seeks total return with an emphasis on current income, but also considering capital appreciation. The Fund invests at least 80% its net assets in U.S. Government securities but may also invest in other debt instruments. It generally invests all of the funds assets in investment grade quality debt instruments. |
| General | |
| Security Type | Mutual Fund |
| Equity Style | -- |
| Broad Asset Class | Taxable Bond |
| Broad Category | Fixed Income |
| Global Peer Group | Bond USD Medium Term |
| Peer Group | Intermediate U.S. Government Funds |
| Global Macro | Bond HC |
| US Macro | Short-/Intermediate-Term U.S. Government & Treasury Funds |
| YCharts Categorization | -- |
| YCharts Benchmark | -- |
| Prospectus Objective | Intermediate U.S. Government Funds |
| Fund Owner Firm Name | MFS |
| Broad Asset Class Benchmark Index | |
| ^BBUSATR | 100.0% |
Fundamentals
| General | |
| Distribution Yield | -- |
| Dividend Yield TTM (6-8-26) | 2.82% |
| 30-Day SEC Yield (4-30-26) | 2.72% |
| 7-Day SEC Yield | -- |
| Number of Holdings | 784 |
| Bond | |
| Yield to Maturity (4-30-26) | 4.31% |
| Effective Duration | 5.58 |
| Average Coupon | 3.73% |
| Calculated Average Quality | 1.561 |
| Effective Maturity | 18.56 |
| Nominal Maturity | 18.56 |
| Number of Bond Holdings | 757 |
As of April 30, 2026
Fund Details
| Key Dates | |
| Inception Date | 8/30/1993 |
| Last Annual Report Date | 2/28/2026 |
| Last Prospectus Date | 6/27/2025 |
| Share Classes | |
| MFGDX | C |
| MFGGX | Retirement |
| MFGHX | Retirement |
| MFGJX | Retirement |
| MFGKX | Retirement |
| MFGSX | A |
| MGSIX | Inst |
| MGVSX | Retirement |
| 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% |
Excel Add-In Codes
| Name: =YCI("M:MFGBX", "name") |
| Broad Asset Class: =YCI("M:MFGBX", "broad_asset_class") |
| Broad Category: =YCI("M:MFGBX", "broad_category_group") |
| Prospectus Objective: =YCI("M:MFGBX", "prospectus_objective") |
| To find the codes for any of our securities and financial metrics, see our Complete Excel Reference. |