NSIOX Performance — Nuveen Strategic Municipal Opportunities Fund, Class I
Data updated: 2026-08-27
NSIOX returned +2.80% year to date and +6.72% over one year to Jun 2026. Annualised returns are +4.95% over 3 years and +0.78% over 5 years. Against its Long-Term Municipal Bond category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $116, against $112 for the category, and to $107 over one year, against $108. Volatility over the past three years was 5.67% a year. In the 12 months to Jun 2026 the fund took in a net $37.3M, and assets reached $1.13B.
NSIOX Growth of $100
What $100 invested in Nuveen Strategic Municipal Opportunities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Long-Term Municipal Bond category average over the same months.
| Period | NSIOX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $107 | $108 |
| 3 years (Jul 2023 – Jun 2026) | $116 | $112 |
| 5 years (Jul 2021 – Jun 2026) | $104 | $103 |
| Since data start (Jul 2019 – Jun 2026) | $119 | $113 |
NSIOX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +2.80% |
| 1 year | +6.72% |
| 3 years (annualised) | +4.95% |
| 5 years (annualised) | +0.78% |
NSIOX Annual Returns
Calendar-year total returns of Nuveen Strategic Municipal Opportunities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +2.80% |
| 2025 | +3.38% |
| 2024 | +4.95% |
| 2023 | +7.13% |
| 2022 | −13.84% |
| 2021 | +5.20% |
| 2020 | +6.81% |
| 2019 (Jul–Dec) | +2.54% |
NSIOX 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% | +1.4% | −2.1% | +1.3% | +0.6% | +1.0% | — | — | — | — | — | — |
| 2025 | +0.5% | +1.4% | −1.7% | −1.0% | 0.0% | +0.6% | −1.1% | +1.0% | +2.6% | +1.0% | +0.3% | 0.0% |
| 2024 | +0.5% | +0.7% | +0.7% | −1.0% | +0.8% | +1.9% | +0.9% | +0.9% | +0.4% | −1.2% | +1.8% | −1.2% |
| 2023 | +3.7% | −2.4% | +1.6% | +0.4% | −0.6% | +0.7% | +0.2% | −1.2% | −2.7% | −1.7% | +6.3% | +2.9% |
| 2022 | −2.7% | −0.9% | −3.5% | −3.6% | +1.4% | −4.1% | +4.0% | −2.8% | −5.3% | −1.4% | +5.1% | −0.4% |
| 2021 | +1.6% | −1.5% | +0.8% | +1.3% | +1.1% | +0.8% | +1.0% | −0.5% | −0.9% | −0.1% | +1.3% | +0.1% |
| 2020 | +2.6% | +2.0% | −7.5% | −1.6% | +3.9% | +2.3% | +1.5% | −0.4% | 0.0% | −0.4% | +2.9% | +1.8% |
| 2019 | — | — | — | — | — | — | +0.9% | +1.9% | −0.9% | +0.1% | +0.2% | +0.3% |
NSIOX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 5.67%
- 3-year Sharpe ratio: 0.08 (vs 4.5% risk-free rate)
- Best month: +6.27% (Nov 2023)
- Worst month: −2.68% (Sep 2023)
NSIOX Fund Flows
Monthly money in and out of Nuveen Strategic Municipal Opportunities Fund, from SEC Form N-PORT.
- 12-month net flow: $37.3M
- 12-month gross sales (incl. reinvestments): $436.8M
- Sales ÷ redemptions: 1.09×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $19.1M | $20.1M | −$999K |
| May 2026 | $30.4M | $30.5M | −$133K |
| Apr 2026 | $26.2M | $26.5M | −$300K |
| Mar 2026 | $29.0M | $24.2M | $4.9M |
| Feb 2026 | $28.6M | $21.5M | $7.1M |
| Jan 2026 | $34.6M | $33.4M | $1.1M |
| Dec 2025 | $59.6M | $49.6M | $10.0M |
| Nov 2025 | $44.1M | $45.2M | −$1.1M |
| Oct 2025 | $38.9M | $30.5M | $8.4M |
| Sep 2025 | $52.5M | $42.2M | $10.3M |
| Aug 2025 | $37.2M | $42.5M | −$5.3M |
| Jul 2025 | $36.7M | $33.3M | $3.3M |
NSIOX Assets Under Management
Net assets of Nuveen Strategic Municipal Opportunities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.13B |
| 2026-03-31 | $1.11B |
| 2025-12-31 | $1.11B |
| 2025-09-30 | $1.09B |
| 2025-06-30 | $1.07B |
| 2025-03-31 | $1.09B |
| 2024-12-31 | $1.10B |
| 2024-09-30 | $1.10B |
| 2024-06-30 | $1.05B |
| 2024-03-31 | $1.03B |
| 2023-12-31 | $996.15M |
| 2023-09-30 | $1.04B |
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.