PUSYX Performance — Putnam Mortgage Securities Fund, CL Y
Data updated: 2026-08-27
PUSYX returned +3.68% year to date and +8.30% over one year to Jun 2026. Annualised returns are +7.52% over 3 years and +1.57% over 5 years. The fund beat its Ultrashort Securitized Bond category average: $100 invested three years ago grew to $124, against $122 for the category, and to $108 over one year, against $106. Volatility over the past three years was 6.30% a year. In the 12 months to Jun 2026 the fund lost a net $53.8M, and assets reached $373.72M.
PUSYX Growth of $100
What $100 invested in Putnam Mortgage Securities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Ultrashort Securitized Bond category average over the same months.
| Period | PUSYX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $108 | $106 |
| 3 years (Jul 2023 – Jun 2026) | $124 | $122 |
| 5 years (Jul 2021 – Jun 2026) | $108 | $121 |
| Since data start (Jul 2019 – Jun 2026) | $112 | $127 |
PUSYX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +3.68% |
| 1 year | +8.30% |
| 3 years (annualised) | +7.52% |
| 5 years (annualised) | +1.57% |
PUSYX Annual Returns
Calendar-year total returns of Putnam Mortgage Securities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +3.68% |
| 2025 | +10.53% |
| 2024 | +4.66% |
| 2023 | +3.89% |
| 2022 | −10.58% |
| 2021 | −4.11% |
| 2020 | −0.47% |
| 2019 (Jul–Dec) | +5.41% |
PUSYX 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 | +0.8% | +2.1% | −1.2% | +0.2% | +1.2% | +0.6% | — | — | — | — | — | — |
| 2025 | −0.1% | +3.0% | +1.6% | 0.0% | −0.7% | +2.0% | −0.2% | +2.0% | +0.6% | +1.0% | +0.7% | +0.3% |
| 2024 | +1.3% | −1.2% | +1.0% | +1.3% | +2.0% | −2.1% | +1.2% | +0.8% | +2.6% | −1.5% | +2.0% | −2.8% |
| 2023 | +0.1% | −2.6% | +2.5% | +0.2% | −0.5% | +0.5% | −3.3% | −0.7% | +0.4% | +4.8% | +4.8% | −2.2% |
| 2022 | −3.0% | −1.5% | +1.5% | −1.9% | +0.5% | −2.7% | −6.4% | −2.9% | +3.5% | +0.1% | +4.3% | −2.0% |
| 2021 | −0.7% | +0.8% | +1.7% | −1.1% | −1.4% | −0.3% | 0.0% | 0.0% | −0.5% | −0.9% | −1.2% | −0.6% |
| 2020 | −10.6% | +0.9% | +0.9% | +2.8% | +0.9% | +0.1% | +0.2% | +1.4% | −1.0% | +1.7% | +2.0% | +0.9% |
| 2019 | — | — | — | — | — | — | +0.8% | +1.2% | +1.2% | +0.5% | +1.2% | +0.4% |
PUSYX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 6.30%
- 3-year Sharpe ratio: 0.48 (vs 4.5% risk-free rate)
- Best month: +4.81% (Oct 2023)
- Worst month: −3.27% (Jul 2023)
PUSYX Fund Flows
Monthly money in and out of Putnam Mortgage Securities Fund, from SEC Form N-PORT.
- 12-month net flow: −$53.8M
- 12-month gross sales (incl. reinvestments): $43.3M
- Sales ÷ redemptions: 0.45×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $3.9M | $7.6M | −$3.7M |
| May 2026 | $623K | $5.7M | −$5.0M |
| Apr 2026 | $3.0M | $10.8M | −$7.7M |
| Mar 2026 | $5.5M | $5.7M | −$212K |
| Feb 2026 | $2.3M | $4.5M | −$2.2M |
| Jan 2026 | $4.1M | $6.7M | −$2.6M |
| Dec 2025 | $4.5M | $6.4M | −$1.9M |
| Nov 2025 | $3.4M | $7.5M | −$4.1M |
| Oct 2025 | $4.0M | $18.8M | −$14.8M |
| Sep 2025 | $5.6M | $6.7M | −$1.0M |
| Aug 2025 | $2.5M | $8.2M | −$5.7M |
| Jul 2025 | $3.9M | $8.6M | −$4.7M |
PUSYX Assets Under Management
Net assets of Putnam Mortgage Securities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $373.72M |
| 2026-03-31 | $386.60M |
| 2025-12-31 | $390.00M |
| 2025-09-30 | $409.48M |
| 2025-06-30 | $416.91M |
| 2025-03-31 | $432.19M |
| 2024-12-31 | $408.98M |
| 2024-09-30 | $434.22M |
| 2024-06-30 | $424.18M |
| 2024-03-31 | $420.54M |
| 2023-12-31 | $426.61M |
| 2023-09-30 | $411.65M |
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.