MFS Government Securities Portfolio
Data updated: 2026-05-26
C000007239 — MFS Government Securities Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Securitized (MBS/ABS/CMBS) Bond · $255.85M AUM · 0.56% expense ratio · 3.7% 1-yr return. From SEC regulatory filings.
C000007239 Fund Overview
MFS Government Securities Portfolio is a US mutual fund managed by Mfs Variable Insurance Trust II, categorised as Long Securitized (MBS/ABS/CMBS) Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Mfs Variable Insurance Trust II
- Category: Long Securitized (MBS/ABS/CMBS) Bond
- Assets under management: $255.85M
- 1-year return: 3.7%
- SEC CIK: 0000719269
- SEC series ID: S000002635
- Share class ID: C000007239
C000007239 Holdings
Top 10 holdings of MFS Government Securities Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| MFS Institutional Money Market Portfolio | 4.63% |
| United States Treasury | 4.06% |
| United States Treasury | 3.85% |
| United States Treasury | 3.74% |
| United States Treasury | 3.13% |
| United States Treasury | 2.56% |
| United States Treasury | 2.31% |
| United States Treasury | 2.27% |
| United States Treasury | 2.17% |
| United States Treasury | 2.16% |
C000007239 Portfolio Allocation
Asset-class allocation of MFS Government Securities Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 63.1% |
| Fixed Income | 33.1% |
| Equity | 4.6% |
C000007239 Performance
Total returns for C000007239 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.1% |
| 1 year | 3.7% |
| 3 years (annualised) | 2.9% |
| 5 years (annualised) | -0.2% |
C000007239 Risk Information
Risk metrics for C000007239, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.8%
C000007239 Costs and Fees
C000007239 costs about $56 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.56%
- Gross expense ratio: 0.65%
- Portfolio turnover: 101%
- Brokerage commissions: 1.47 bps of average net assets (SEC N-CEN)
C000007239 Cashflows
Over the 12 months to 2026-03, MFS Government Securities Portfolio had net outflows of $16.32M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$5.82M |
| 2026-02 | −$2.69M |
| 2026-01 | −$1.53M |
| 2025-12 | $307.96K |
| 2025-11 | −$1.96M |
| 2025-10 | −$3.65M |
C000007239 Debt Constituents
Largest debt holdings of MFS Government Securities Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 4.06% |
| United States Treasury | 3.85% |
| United States Treasury | 3.74% |
| United States Treasury | 3.13% |
| United States Treasury | 2.56% |
| United States Treasury | 2.31% |
| United States Treasury | 2.27% |
| United States Treasury | 2.17% |
| United States Treasury | 2.16% |
| United States Treasury | 2.03% |
C000007239 Prospectus and SEC Filings
Official MFS Government Securities Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Securitized (MBS/ABS/CMBS) Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.