CULAX Performance — Calvert Ultra-Short Duration Income Fund, Class A
Data updated: 2026-08-27
CULAX returned +1.65% year to date and +3.93% over one year to Jun 2026. Annualised returns are +5.05% over 3 years and +3.50% over 5 years. The fund trailed its Trading - Leveraged category average: $100 invested three years ago grew to $116, against $157 for the category, and to $104 over one year, against $121. Volatility over the past three years was 0.47% a year. In the 12 months to Jun 2026 the fund took in a net $40.6M, and assets reached $701.54M.
CULAX Growth of $100
What $100 invested in Calvert Ultra-Short Duration Income Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Trading - Leveraged category average over the same months.
| Period | CULAX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $104 | $121 |
| 3 years (Jul 2023 – Jun 2026) | $116 | $157 |
| 5 years (Jul 2021 – Jun 2026) | $119 | $144 |
| Since data start (Jul 2019 – Jun 2026) | $122 | $165 |
CULAX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.65% |
| 1 year | +3.93% |
| 3 years (annualised) | +5.05% |
| 5 years (annualised) | +3.50% |
CULAX Annual Returns
Calendar-year total returns of Calvert Ultra-Short Duration Income Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +1.65% |
| 2025 | +4.60% |
| 2024 | +5.67% |
| 2023 | +6.03% |
| 2022 | −0.27% |
| 2021 | +0.43% |
| 2020 | +0.67% |
| 2019 (Jul–Dec) | +1.19% |
CULAX 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% | +0.3% | +0.1% | +0.3% | +0.3% | +0.3% | — | — | — | — | — | — |
| 2025 | +0.4% | +0.5% | +0.3% | +0.4% | +0.4% | +0.4% | +0.2% | +0.5% | +0.3% | +0.2% | +0.4% | +0.4% |
| 2024 | +0.5% | +0.4% | +0.5% | +0.3% | +0.5% | +0.4% | +0.6% | +0.6% | +0.5% | +0.3% | +0.4% | +0.4% |
| 2023 | +0.9% | +0.2% | +0.1% | +0.6% | +0.3% | +0.6% | +0.5% | +0.5% | +0.4% | +0.3% | +0.7% | +0.7% |
| 2022 | −0.3% | −0.3% | −0.4% | −0.2% | −0.1% | −0.6% | +0.5% | +0.2% | −0.2% | +0.1% | +0.5% | +0.5% |
| 2021 | +0.2% | +0.1% | 0.0% | +0.2% | +0.1% | +0.1% | +0.1% | 0.0% | 0.0% | −0.1% | −0.2% | 0.0% |
| 2020 | +0.2% | +0.3% | −4.8% | +1.6% | +1.0% | +1.2% | −0.2% | +0.5% | +0.1% | +0.2% | +0.5% | +0.3% |
| 2019 | — | — | — | — | — | — | +0.2% | +0.2% | +0.1% | +0.3% | +0.2% | +0.2% |
CULAX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 0.47%
- Best month: +0.72% (Nov 2023)
- Worst month: +0.10% (Mar 2026)
CULAX Fund Flows
Monthly money in and out of Calvert Ultra-Short Duration Income Fund, from SEC Form N-PORT.
- 12-month net flow: $40.6M
- 12-month gross sales (incl. reinvestments): $298.4M
- Sales ÷ redemptions: 1.16×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $24.5M | $27.0M | −$2.5M |
| May 2026 | $20.6M | $15.9M | $4.7M |
| Apr 2026 | $21.0M | $21.7M | −$730K |
| Mar 2026 | $38.5M | $18.8M | $19.7M |
| Feb 2026 | $18.4M | $18.9M | −$518K |
| Jan 2026 | $16.1M | $18.4M | −$2.2M |
| Dec 2025 | $26.0M | $15.3M | $10.7M |
| Nov 2025 | $36.5M | $38.0M | −$1.5M |
| Oct 2025 | $24.9M | $24.0M | $939K |
| Sep 2025 | $25.0M | $17.6M | $7.4M |
| Aug 2025 | $21.0M | $18.4M | $2.7M |
| Jul 2025 | $25.8M | $23.9M | $1.9M |
CULAX Assets Under Management
Net assets of Calvert Ultra-Short Duration Income Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $701.54M |
| 2026-03-31 | $699.97M |
| 2025-12-31 | $684.74M |
| 2025-09-30 | $673.75M |
| 2025-06-30 | $660.95M |
| 2025-03-31 | $702.88M |
| 2024-12-31 | $683.32M |
| 2024-09-30 | $772.47M |
| 2024-06-30 | $741.19M |
| 2024-03-31 | $729.76M |
| 2023-12-31 | $988.19M |
| 2023-09-30 | $921.99M |
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.