FMSAX Performance — Fidelity Advisor Mortgage Securities Fund, Class M
Data updated: 2026-07-24
FMSAX returned +0.93% year to date and +6.51% over one year to May 2026. Over one year the fund beat its Intermediate Securitized Bond category average: $100 grew to $107, against $106 for the category. Volatility over the past 12 months was 3.28% a year. In the 12 months to May 2026 the fund took in a net $140.8M, and assets reached $766.76M.
FMSAX Growth of $100
What $100 invested in Fidelity Advisor Mortgage Securities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Securitized Bond category average over the same months.
| Period | FMSAX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $107 | $106 |
| 3 years (Jun 2023 – May 2026) | $48 | $116 |
| 5 years (Jun 2021 – May 2026) | $16 | $105 |
| Since data start (Sep 2019 – May 2026) | $7 | $111 |
FMSAX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.93% |
| 1 year | +6.51% |
3- and 5-year figures withheld: returns differ from sibling classes.
FMSAX Annual Returns
Calendar-year total returns of Fidelity Advisor Mortgage Securities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +0.93% |
| 2025 | −0.57% |
| 2024 | −38.33% |
| 2023 | −35.95% |
| 2022 | −46.36% |
| 2021 | −39.58% |
| 2020 | −36.24% |
| 2019 (Sep–Dec) | −14.63% |
FMSAX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.5% | +1.6% | −1.6% | +0.2% | +0.3% | — | — | — | — | — | — | — |
| 2025 | −3.5% | −1.6% | −0.1% | +0.2% | −0.9% | +1.7% | −0.4% | +1.6% | +1.2% | +0.8% | +0.6% | 0.0% |
| 2024 | −4.3% | −5.8% | −3.0% | −7.0% | −2.1% | −2.8% | −1.5% | −2.5% | −2.8% | −6.9% | −2.7% | −5.8% |
| 2023 | −0.9% | −6.6% | −2.1% | −3.5% | −4.9% | −4.5% | −4.1% | −4.9% | −7.1% | −6.2% | +1.4% | +0.2% |
| 2022 | −5.4% | −5.0% | −6.7% | −7.4% | −2.8% | −5.8% | −0.9% | −7.3% | −8.9% | −5.5% | 0.0% | −4.5% |
| 2021 | −3.8% | −4.7% | −4.6% | −3.5% | −4.3% | −4.0% | −3.4% | −4.1% | −4.4% | −4.4% | −4.1% | −4.2% |
| 2020 | −3.3% | −3.1% | −3.6% | −3.1% | −3.7% | −4.0% | −3.7% | −3.8% | −4.0% | −4.0% | −4.0% | −3.8% |
| 2019 | — | — | — | — | — | — | — | — | −4.1% | −3.6% | −3.9% | −3.9% |
FMSAX Risk
Risk measures from monthly returns over Jun 2025 – May 2026.
- 1-year volatility (annualised): 3.28%
- Best month: +1.67% (Jun 2025)
- Worst month: −1.58% (Mar 2026)
FMSAX Fund Flows
Monthly money in and out of Fidelity Advisor Mortgage Securities Fund, from SEC Form N-PORT.
- 12-month net flow: $140.8M
- 12-month gross sales (incl. reinvestments): $293.7M
- Sales ÷ redemptions: 1.92×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $28.5M | $31.3M | −$2.8M |
| Apr 2026 | $34.9M | $18.9M | $16.0M |
| Mar 2026 | $41.9M | $18.7M | $23.3M |
| Feb 2026 | $15.0M | $8.1M | $7.0M |
| Jan 2026 | $27.9M | $9.5M | $18.4M |
| Dec 2025 | $21.6M | $8.7M | $12.8M |
| Nov 2025 | $14.0M | $8.9M | $5.1M |
| Oct 2025 | $17.4M | $9.0M | $8.4M |
| Sep 2025 | $12.9M | $8.8M | $4.1M |
| Aug 2025 | $13.4M | $9.2M | $4.2M |
| Jul 2025 | $24.1M | $11.6M | $12.5M |
| Jun 2025 | $42.1M | $10.2M | $31.9M |
FMSAX Assets Under Management
Net assets of Fidelity Advisor Mortgage Securities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $766.76M |
| 2026-02-28 | $745.54M |
| 2025-11-30 | $698.22M |
| 2025-08-31 | $669.37M |
| 2025-05-31 | $608.46M |
| 2025-02-28 | $608.73M |
| 2024-11-30 | $600.76M |
| 2024-08-31 | $607.00M |
| 2024-05-31 | $572.31M |
| 2024-02-29 | $469.20M |
| 2023-11-30 | $438.54M |
| 2023-08-31 | $493.05M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.