CLMZX Performance — Columbia Mortgage Opportunities Fund, Institutional Class
Data updated: 2026-09-24
CLMZX returned +1.03% year to date and +7.16% over one year to May 2026. Annualised returns are +7.85% over 3 years and +0.84% over 5 years. The fund beat its Intermediate Securitized Bond category average: $100 invested three years ago grew to $125, against $116 for the category, and to $107 over one year, against $106. Volatility over the past three years was 7.45% a year. In the 12 months to May 2026 the fund took in a net $434.2M, and assets reached $2.65B.
CLMZX Growth of $100
What $100 invested in Columbia Mortgage Opportunities 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 | CLMZX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $107 | $106 |
| 3 years (Jun 2023 – May 2026) | $125 | $116 |
| 5 years (Jun 2021 – May 2026) | $104 | $105 |
| Since data start (Sep 2019 – May 2026) | $121 | $111 |
CLMZX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.03% |
| 1 year | +7.16% |
| 3 years (annualised) | +7.85% |
| 5 years (annualised) | +0.84% |
CLMZX Annual Returns
Calendar-year total returns of Columbia Mortgage Opportunities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +1.03% |
| 2025 | +11.85% |
| 2024 | +5.26% |
| 2023 | +7.51% |
| 2022 | −17.75% |
| 2021 | +5.29% |
| 2020 | +9.21% |
| 2019 (Sep–Dec) | −0.05% |
CLMZX 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% | +1.7% | −1.7% | +0.3% | 0.0% | — | — | — | — | — | — | — |
| 2025 | +0.9% | +3.5% | −0.4% | +2.3% | −0.9% | +1.7% | −0.5% | +1.9% | +1.2% | +0.8% | +0.7% | +0.1% |
| 2024 | +0.4% | −1.7% | +1.0% | −3.2% | +1.9% | +1.4% | +3.7% | +3.0% | +1.8% | −3.2% | +1.7% | −1.3% |
| 2023 | +4.1% | −2.7% | +1.5% | +0.4% | −1.2% | −0.3% | +0.4% | −0.8% | −2.6% | −2.5% | +6.1% | +5.5% |
| 2022 | −0.2% | −1.1% | −3.5% | −1.3% | −0.9% | −3.5% | +2.5% | −2.3% | −7.5% | −4.5% | +3.3% | 0.0% |
| 2021 | +2.4% | +2.4% | +1.3% | +0.2% | −0.1% | +0.1% | −0.7% | +0.1% | −0.3% | +0.1% | −0.1% | +0.1% |
| 2020 | +0.9% | +0.9% | −10.7% | +0.3% | +3.1% | +5.3% | +1.7% | +1.9% | +0.9% | +1.6% | +2.1% | +1.8% |
| 2019 | — | — | — | — | — | — | — | — | −1.0% | +1.0% | +0.1% | −0.1% |
CLMZX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 7.45%
- 3-year Sharpe ratio: 0.45 (vs 4.5% risk-free rate)
- Best month: +6.09% (Nov 2023)
- Worst month: −3.25% (Oct 2024)
CLMZX Fund Flows
Monthly money in and out of Columbia Mortgage Opportunities Fund, from SEC Form N-PORT.
- 12-month net flow: $434.2M
- 12-month gross sales (incl. reinvestments): $1.5B
- Sales ÷ redemptions: 1.40×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $59.9M | $50.6M | $9.3M |
| Apr 2026 | $71.8M | $75.4M | −$3.6M |
| Mar 2026 | $101.6M | $56.7M | $44.9M |
| Feb 2026 | $578.0M | $557.1M | $20.8M |
| Jan 2026 | $116.0M | $45.5M | $70.5M |
| Dec 2025 | $63.7M | $41.4M | $22.3M |
| Nov 2025 | $83.7M | $31.3M | $52.4M |
| Oct 2025 | $124.0M | $70.8M | $53.2M |
| Sep 2025 | $103.8M | $51.8M | $52.0M |
| Aug 2025 | $52.9M | $41.0M | $12.0M |
| Jul 2025 | $92.7M | $33.2M | $59.5M |
| Jun 2025 | $75.4M | $34.5M | $40.9M |
CLMZX Assets Under Management
Net assets of Columbia Mortgage Opportunities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $2.65B |
| 2026-02-28 | $2.66B |
| 2025-11-30 | $2.52B |
| 2025-08-31 | $2.33B |
| 2025-05-31 | $2.18B |
| 2025-02-28 | $2.21B |
| 2024-11-30 | $2.36B |
| 2024-08-31 | $2.34B |
| 2024-05-31 | $2.22B |
| 2024-02-29 | $2.38B |
| 2023-11-30 | $2.33B |
| 2023-08-31 | $2.51B |
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.