NMIMX Performance — Columbia Large Cap Enhanced Core Fund, Institutional Class
Data updated: 2026-07-29
NMIMX returned +8.51% year to date and +28.45% over one year to May 2026. Annualised returns are +22.40% over 3 years and +13.92% over 5 years. The fund beat its US Large Blend category average: $100 invested three years ago grew to $183, against $165 for the category, and to $128 over one year, against $122. Volatility over the past three years was 12.95% a year. In the 12 months to May 2026 the fund lost a net $86.9M, and assets reached $482.56M.
NMIMX Growth of $100
What $100 invested in Columbia Large Cap Enhanced Core Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Blend category average over the same months.
| Period | NMIMX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $128 | $122 |
| 3 years (Jun 2023 – May 2026) | $183 | $165 |
| 5 years (Jun 2021 – May 2026) | $192 | $164 |
| Since data start (Sep 2019 – May 2026) | $283 | $229 |
NMIMX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +8.51% |
| 1 year | +28.45% |
| 3 years (annualised) | +22.40% |
| 5 years (annualised) | +13.92% |
NMIMX Annual Returns
Calendar-year total returns of Columbia Large Cap Enhanced Core Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +8.51% |
| 2025 | +16.95% |
| 2024 | +25.56% |
| 2023 | +26.21% |
| 2022 | −17.00% |
| 2021 | +31.44% |
| 2020 | +15.50% |
| 2019 (Sep–Dec) | +11.67% |
NMIMX 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 | +0.7% | −1.3% | −4.6% | +9.4% | +4.7% | — | — | — | — | — | — | — |
| 2025 | +2.3% | −2.1% | −5.7% | −1.3% | +5.9% | +4.8% | +2.7% | +2.7% | +3.2% | +2.4% | +0.2% | +1.1% |
| 2024 | +2.1% | +5.2% | +3.5% | −4.9% | +5.1% | +3.9% | +1.5% | +2.1% | +2.0% | −0.2% | +5.7% | −2.4% |
| 2023 | +6.6% | −2.0% | +3.7% | +1.2% | 0.0% | +6.7% | +3.5% | −1.7% | −4.3% | −2.3% | +8.6% | +4.3% |
| 2022 | −4.0% | −2.2% | +2.7% | −7.4% | +0.4% | −8.8% | +8.6% | −4.0% | −9.1% | +7.9% | +5.8% | −6.1% |
| 2021 | 0.0% | +2.5% | +5.3% | +4.9% | +1.0% | +2.1% | +2.7% | +3.7% | −5.5% | +6.2% | −0.1% | +5.5% |
| 2020 | −0.2% | −8.7% | −12.6% | +13.4% | +5.2% | +2.0% | +4.8% | +7.1% | −4.3% | −2.8% | +10.0% | +3.8% |
| 2019 | — | — | — | — | — | — | — | — | +2.4% | +2.2% | +3.7% | +3.0% |
NMIMX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 12.95%
- 3-year Sharpe ratio: 1.38 (vs 4.5% risk-free rate)
- Best month: +9.39% (Apr 2026)
- Worst month: −5.68% (Mar 2025)
NMIMX Fund Flows
Monthly money in and out of Columbia Large Cap Enhanced Core Fund, from SEC Form N-PORT.
- 12-month net flow: −$86.9M
- 12-month gross sales (incl. reinvestments): $165.4M
- Sales ÷ redemptions: 0.66×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $34.8M | $9.2M | $25.6M |
| Apr 2026 | $2.5M | $60.2M | −$57.7M |
| Mar 2026 | $38.2M | $6.0M | $32.2M |
| Feb 2026 | $2.4M | $5.8M | −$3.4M |
| Jan 2026 | $3.2M | $44.0M | −$40.8M |
| Dec 2025 | $56.5M | $7.8M | $48.8M |
| Nov 2025 | $1.5M | $5.1M | −$3.6M |
| Oct 2025 | $6.2M | $23.5M | −$17.3M |
| Sep 2025 | $1.8M | $26.8M | −$25.0M |
| Aug 2025 | $1.9M | $10.7M | −$8.8M |
| Jul 2025 | $2.1M | $26.7M | −$24.6M |
| Jun 2025 | $14.1M | $26.4M | −$12.2M |
NMIMX Assets Under Management
Net assets of Columbia Large Cap Enhanced Core Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $482.56M |
| 2026-02-28 | $440.54M |
| 2025-11-30 | $477.89M |
| 2025-08-31 | $495.68M |
| 2025-05-31 | $505.91M |
| 2025-02-28 | $458.84M |
| 2024-11-30 | $520.44M |
| 2024-08-31 | $535.34M |
| 2024-05-31 | $526.19M |
| 2024-02-29 | $401.57M |
| 2023-11-30 | $403.47M |
| 2023-08-31 | $421.35M |
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.