Nuveen Municipal High Income Opportunity Fund
NMZ- Exchange
- NYSE
- SEC CIK
- 0001266585
In the last 90 days, Nuveen Municipal High Income Opportunity Fund insiders filed 3 open-market purchases and 3 sales; 213 institutions reported holding it in 13F filings for Q2 2026, worth $358.6M in total; no superinvestor holds it.
Key figures
- Insider buysLast 90 days, $490.29 in total
- 3
- Insider sellsLast 90 days, $491.95 in total
- 3
- 13F holdersQ2 2026, +76 vs. previous quarter
- 213
- 13F valueReported value at the end of Q2 2026
- $358.6M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding NMZ, Q2 2026
No superinvestor reported holding NMZ at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Nuveen Municipal High Income Opportunity Fund insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 6, 2026 (view filing)1:39 PM ET | Aug 4 | 2 days | Bank Of America Corp and 1 other10% Owner | PPurchase | +3 | $10.19 | +$30.56 | New position3 after | 3 lots |
| Aug 6, 2026 (view filing)1:39 PM ET | Aug 4 | 2 days | Bank Of America Corp and 1 other10% Owner | SSale | −3 | $10.26 | −$30.79 | −100.0%0 after | 3 lots |
| Aug 4, 2026 (view filing)2:48 PM ET | Aug 3 | 1 day | Bank Of America Corp and 1 other10% Owner | PPurchase | +36 | $10.21 | +$367.61 | New position36 after | 4 lots |
| Aug 4, 2026 (view filing)2:48 PM ET | Jul 31-Aug 3 | 4 days | Bank Of America Corp and 1 other10% Owner | SSale | −36 | $10.27 | −$369.58 | −100.0%0 after | 4 lots |
| Jul 28, 2026 (view filing)1:40 PM ET | Jul 24 | 4 days | Bank Of America Corp and 1 other10% Owner | PPurchase | +9 | $10.24 | +$92.12 | New position9 after | |
| Jul 28, 2026 (view filing)1:40 PM ET | Jul 24 | 4 days | Bank Of America Corp and 1 other10% Owner | SSale | −9 | $10.18 | −$91.58 | −100.0%0 after | |
| Jun 29, 2026 (view filing) | Jun 22 | 7 daysLate | Moschner Albin FOther: Trustee | SSale | −1.81K | $10.37 | −$18.8K | −32.4%3.79K after | |
| Jun 29, 2026 (view filing) | Jun 22 | 7 daysLate | Moschner Albin FOther: Trustee | SSale | −1.10K | $10.35 | −$11.4K | −59.9%736 after | |
| Mar 6, 2026 (view filing) | Mar 5 | 1 day | Siffermann William AVice President | PPurchase | +100 | $10.48 | +$1.05K | +12.3%913.97 after | |
| Dec 22, 2025 (view filing)5:14 PM ET | Dec 19 | 3 days | Bank Of America Corp and 1 other10% Owner | PPurchase | +1.00K | $10.32 | +$10.3K | New position1.00K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Nuveen Municipal High Income Opportunity Fund at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 3,168,046 | $33.5M | 0.00% | +502,314+18.8% | Added |
| Guggenheim Capital LLC | 2,376,749 | $25.1M | 0.16% | +333,311+16.3% | Added |
| Wells Fargo & Company | 2,359,288 | $24.9M | 0.00% | +1,480,618+168.5% | Added |
| Sit Investment Associates Inc | 2,336,943 | $24.7M | 0.47% | +2,336,943 | New |
| Hennion & Walsh Asset Management, Inc. | 2,217,036 | $23.4M | 0.67% | +577,934+35.3% | Added |
| Raymond James Financial Inc | 1,930,236 | $20.4M | 0.01% | +810,274+72.3% | Added |
| UBS Group AG | 1,531,663 | $16.2M | 0.00% | −388,040−20.2% | Reduced |
| Bank of America Corp | 1,112,841 | $11.8M | 0.00% | +723,642+185.9% | Added |
| LPL Financial LLC | 1,080,405 | $11.4M | 0.00% | +316,334+41.4% | Added |
| Van Eck Associates Corp | 1,056,439 | $11.2M | 0.01% | +382,155+56.7% | Added |