CSOIX Performance — Credit Suisse Strategic Income Fund, Class I
Data updated: 2026-09-25
CSOIX returned +0.95% year to date and +2.71% over one year to Jul 2026. Annualised returns are +6.79% over 3 years and +4.77% over 5 years. Against its Short-Term Corporate Bond category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $122, against $120 for the category, and to $103 over one year, against $104. Volatility over the past three years was 2.84% a year. In the 12 months to Jul 2026 the fund took in a net $97.4M, and assets reached $1.15B.
CSOIX Growth of $100
What $100 invested in Credit Suisse Strategic Income Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Short-Term Corporate Bond category average over the same months.
| Period | CSOIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $103 | $104 |
| 3 years (Aug 2023 – Jul 2026) | $122 | $120 |
| 5 years (Aug 2021 – Jul 2026) | $126 | $116 |
| Since data start (Aug 2019 – Jul 2026) | $141 | $127 |
CSOIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.95% |
| 1 year | +2.71% |
| 3 years (annualised) | +6.79% |
| 5 years (annualised) | +4.77% |
CSOIX Annual Returns
Calendar-year total returns of Credit Suisse Strategic Income Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +0.95% |
| 2025 | +5.52% |
| 2024 | +8.90% |
| 2023 | +14.12% |
| 2022 | −5.88% |
| 2021 | +5.44% |
| 2020 | +4.73% |
| 2019 (Aug–Dec) | +2.74% |
CSOIX 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 | −0.3% | −0.4% | −0.8% | +1.8% | +0.6% | 0.0% | +0.1% | — | — | — | — | — |
| 2025 | +0.9% | +0.2% | −0.8% | +0.1% | +1.5% | +1.2% | +0.6% | +0.5% | +0.4% | +0.3% | 0.0% | +0.6% |
| 2024 | +0.7% | +0.7% | +1.2% | 0.0% | +1.1% | +0.6% | +1.1% | +1.1% | +0.7% | +0.3% | +0.9% | +0.2% |
| 2023 | +3.8% | −0.3% | +0.1% | +1.7% | −0.5% | +2.0% | +1.7% | +0.7% | −0.2% | −0.9% | +2.8% | +2.6% |
| 2022 | −0.6% | −0.9% | −0.2% | −1.6% | −1.7% | −4.2% | +3.2% | +0.2% | −3.5% | +1.3% | +1.6% | +0.6% |
| 2021 | +1.2% | +0.8% | +0.3% | +0.7% | +0.6% | +0.4% | 0.0% | +0.4% | +0.4% | 0.0% | −0.3% | +0.8% |
| 2020 | +0.4% | −1.4% | −13.2% | +3.1% | +4.6% | +2.2% | +2.8% | +1.7% | +0.5% | +0.1% | +3.1% | +1.8% |
| 2019 | — | — | — | — | — | — | — | +0.2% | +0.3% | −0.3% | +0.7% | +1.8% |
CSOIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 2.84%
- 3-year Sharpe ratio: 0.81 (vs 4.5% risk-free rate)
- Best month: +2.78% (Nov 2023)
- Worst month: −0.94% (Oct 2023)
CSOIX Fund Flows
Monthly money in and out of Credit Suisse Strategic Income Fund, from SEC Form N-PORT.
- 12-month net flow: $97.4M
- 12-month gross sales (incl. reinvestments): $538.9M
- Sales ÷ redemptions: 1.22×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $37.7M | $28.5M | $9.2M |
| Jun 2026 | $32.3M | $37.8M | −$5.5M |
| May 2026 | $27.0M | $32.1M | −$5.1M |
| Apr 2026 | $29.1M | $41.5M | −$12.3M |
| Mar 2026 | $33.6M | $50.5M | −$16.9M |
| Feb 2026 | $58.0M | $40.0M | $18.1M |
| Jan 2026 | $79.1M | $27.7M | $51.5M |
| Dec 2025 | $55.4M | $53.9M | $1.5M |
| Nov 2025 | $42.7M | $34.4M | $8.3M |
| Oct 2025 | $60.3M | $32.7M | $27.6M |
| Sep 2025 | $37.9M | $21.5M | $16.4M |
| Aug 2025 | $45.7M | $41.0M | $4.7M |
CSOIX Assets Under Management
Net assets of Credit Suisse Strategic Income Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $1.15B |
| 2026-04-30 | $1.17B |
| 2026-01-31 | $1.19B |
| 2025-10-31 | $1.15B |
| 2025-07-31 | $1.10B |
| 2025-04-30 | $1.01B |
| 2025-01-31 | $1.02B |
| 2024-10-31 | $844.84M |
| 2024-07-31 | $756.55M |
| 2024-04-30 | $588.80M |
| 2024-01-31 | $480.24M |
| 2023-10-31 | $369.05M |
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.