CIMYX Performance — Columbia Intermediate Duration Municipal Bond Fund, Institutional 3 Class
Data updated: 2026-09-28
CIMYX returned +0.66% year to date and +4.65% over one year to Jul 2026. Annualised returns are +3.54% over 3 years and +1.02% over 5 years. The fund beat its Intermediate Municipal Bond category average: $100 invested three years ago grew to $111, against $109 for the category, and to $105 over one year, against $105. Volatility over the past three years was 3.86% a year. In the 12 months to Jul 2026 the fund lost a net $32.5M, and assets reached $1.48B.
CIMYX Growth of $100
What $100 invested in Columbia Intermediate Duration Municipal Bond Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Municipal Bond category average over the same months.
| Period | CIMYX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $105 | $105 |
| 3 years (Aug 2023 – Jul 2026) | $111 | $109 |
| 5 years (Aug 2021 – Jul 2026) | $105 | $102 |
| Since data start (Aug 2019 – Jul 2026) | $113 | $109 |
CIMYX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.66% |
| 1 year | +4.65% |
| 3 years (annualised) | +3.54% |
| 5 years (annualised) | +1.02% |
CIMYX Annual Returns
Calendar-year total returns of Columbia Intermediate Duration Municipal Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +0.66% |
| 2025 | +4.32% |
| 2024 | +2.61% |
| 2023 | +5.48% |
| 2022 | −7.10% |
| 2021 | +1.65% |
| 2020 | +4.18% |
| 2019 (Aug–Dec) | +1.14% |
CIMYX 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% | +1.1% | −1.9% | +0.9% | +0.4% | +0.6% | −1.3% | — | — | — | — | — |
| 2025 | +0.5% | +0.8% | −1.2% | −0.5% | +0.1% | +0.7% | −0.1% | +0.7% | +1.6% | +1.0% | +0.2% | +0.4% |
| 2024 | +0.1% | +0.2% | +0.1% | −0.7% | 0.0% | +1.2% | +0.7% | +0.6% | +0.9% | −1.1% | +1.1% | −0.7% |
| 2023 | +2.2% | −1.6% | +1.5% | −0.1% | −0.4% | +0.7% | +0.2% | −0.5% | −1.6% | −0.8% | +4.2% | +1.9% |
| 2022 | −2.1% | −0.6% | −2.4% | −2.0% | +0.6% | −1.1% | +2.0% | −1.5% | −2.8% | −0.7% | +3.2% | +0.1% |
| 2021 | +0.5% | −1.2% | +0.5% | +0.7% | +0.4% | +0.2% | +0.7% | −0.1% | −0.7% | −0.2% | +0.7% | 0.0% |
| 2020 | +1.6% | +1.1% | −4.0% | −1.8% | +2.7% | +1.1% | +1.5% | 0.0% | +0.2% | −0.1% | +1.2% | +0.8% |
| 2019 | — | — | — | — | — | — | — | +1.2% | −0.7% | +0.2% | +0.2% | +0.3% |
CIMYX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 3.86%
- 3-year Sharpe ratio: -0.25 (vs 4.5% risk-free rate)
- Best month: +4.16% (Nov 2023)
- Worst month: −1.87% (Mar 2026)
CIMYX Fund Flows
Monthly money in and out of Columbia Intermediate Duration Municipal Bond Fund, from SEC Form N-PORT.
- 12-month net flow: −$32.5M
- 12-month gross sales (incl. reinvestments): $350.3M
- Sales ÷ redemptions: 0.92×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $22.5M | $20.6M | $1.9M |
| Jun 2026 | $34.1M | $32.6M | $1.5M |
| May 2026 | $25.5M | $27.9M | −$2.4M |
| Apr 2026 | $23.6M | $25.8M | −$2.2M |
| Mar 2026 | $33.0M | $35.3M | −$2.3M |
| Feb 2026 | $22.8M | $30.7M | −$7.9M |
| Jan 2026 | $37.7M | $41.2M | −$3.5M |
| Dec 2025 | $40.3M | $45.2M | −$4.8M |
| Nov 2025 | $24.9M | $25.0M | −$18K |
| Oct 2025 | $28.4M | $27.1M | $1.3M |
| Sep 2025 | $30.8M | $32.7M | −$1.9M |
| Aug 2025 | $26.6M | $38.7M | −$12.1M |
CIMYX Assets Under Management
Net assets of Columbia Intermediate Duration Municipal Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $1.48B |
| 2026-04-30 | $1.50B |
| 2026-01-31 | $1.52B |
| 2025-10-31 | $1.52B |
| 2025-07-31 | $1.50B |
| 2025-04-30 | $1.51B |
| 2025-01-31 | $1.57B |
| 2024-10-31 | $1.57B |
| 2024-07-31 | $1.57B |
| 2024-04-30 | $1.59B |
| 2024-01-31 | $1.61B |
| 2023-10-31 | $1.57B |
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.