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NMZ · Nuveen Municipal High Income Opportunity Fund

+0.2% on Oct 16

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Updated Oct 17 · 4 feeds behind: Big-holder filings, 5 days, and 3 more · Every feed →

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The market view

Price chart

The interactive NMZ chart (by TradingView) loads here.

Our take

None of our tested rules has picked NMZ yet.

The 0–100 score for NMZ
Members see one number for how strongly these rules agree on NMZ, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of NMZ. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 26, 2026–Oct 23, 2026 · UTC dates · today is excluded

Insider purchases

Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual.

Latest 28 days
0
Earlier median
2
Earlier range
0–2
Distinct filers per 28 daysScale: 0–2
Oct 25, 2025Oct 23, 2026
Earlier periodsLatest 28 daysEarlier median 2Limited or missing history

Who appears in the latest period?

No named filers on file for this period.

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jun 29, 2026. Newest disclosure across this feed: Oct 16, 2026.

Earlier periods in the comparison: 3. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 2; range: 0–2.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 25, 2025–Nov 21, 2025—Unavailable
Nov 22, 2025–Dec 19, 2025—Unavailable
Dec 20, 2025–Jan 16, 2026—Unavailable
Jan 17, 2026–Feb 13, 2026—Unavailable
Feb 14, 2026–Mar 13, 2026—Unavailable
Mar 14, 2026–Apr 10, 2026—Unavailable
Apr 11, 2026–May 8, 2026—Unavailable
May 9, 2026–Jun 5, 2026—Unavailable
Jun 6, 2026–Jul 3, 20260Partial; excluded
Jul 4, 2026–Jul 31, 20262Within stored history
Aug 1, 2026–Aug 28, 20262Within stored history
Aug 29, 2026–Sep 25, 20260Within stored history
Sep 26, 2026–Oct 23, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 2; range: 0–2.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 25, 2025–Nov 21, 2025—Unavailable
Nov 22, 2025–Dec 19, 2025—Unavailable
Dec 20, 2025–Jan 16, 2026—Unavailable
Jan 17, 2026–Feb 13, 2026—Unavailable
Feb 14, 2026–Mar 13, 2026—Unavailable
Mar 14, 2026–Apr 10, 2026—Unavailable
Apr 11, 2026–May 8, 2026—Unavailable
May 9, 2026–Jun 5, 2026—Unavailable
Jun 6, 2026–Jul 3, 20261Partial; excluded
Jul 4, 2026–Jul 31, 20262Within stored history
Aug 1, 2026–Aug 28, 20262Within stored history
Aug 29, 2026–Sep 25, 20260Within stored history
Sep 26, 2026–Oct 23, 2026Latest period0Within stored history
Congress purchases · Source needs an update

The feed’s newest disclosure is too old for a current comparison. Counts show only the records already stored. Earlier median: —; range: unavailable.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 25, 2025–Nov 21, 2025—Unavailable
Nov 22, 2025–Dec 19, 2025—Unavailable
Dec 20, 2025–Jan 16, 2026—Unavailable
Jan 17, 2026–Feb 13, 2026—Unavailable
Feb 14, 2026–Mar 13, 2026—Unavailable
Mar 14, 2026–Apr 10, 2026—Unavailable
Apr 11, 2026–May 8, 2026—Unavailable
May 9, 2026–Jun 5, 2026—Unavailable
Jun 6, 2026–Jul 3, 2026—Unavailable
Jul 4, 2026–Jul 31, 2026—Unavailable
Aug 1, 2026–Aug 28, 2026—Unavailable
Aug 29, 2026–Sep 25, 2026—Unavailable
Sep 26, 2026–Oct 23, 2026Latest period—Unavailable
Congress sales · Source needs an update

The feed’s newest disclosure is too old for a current comparison. Counts show only the records already stored. Earlier median: —; range: unavailable.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 25, 2025–Nov 21, 2025—Unavailable
Nov 22, 2025–Dec 19, 2025—Unavailable
Dec 20, 2025–Jan 16, 2026—Unavailable
Jan 17, 2026–Feb 13, 2026—Unavailable
Feb 14, 2026–Mar 13, 2026—Unavailable
Mar 14, 2026–Apr 10, 2026—Unavailable
Apr 11, 2026–May 8, 2026—Unavailable
May 9, 2026–Jun 5, 2026—Unavailable
Jun 6, 2026–Jul 3, 2026—Unavailable
Jul 4, 2026–Jul 31, 2026—Unavailable
Aug 1, 2026–Aug 28, 2026—Unavailable
Aug 29, 2026–Sep 25, 2026—Unavailable
Sep 26, 2026–Oct 23, 2026Latest period—Unavailable
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Insiders

Insiders · Aug 2026

  1. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  2. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  3. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  4. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  5. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  6. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  7. Disclosed
  8. Disclosed
  9. Disclosed
  10. Disclosed
  11. Disclosed
  12. Disclosed
  13. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  14. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  15. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  16. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 3, 2026

  17. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 3, 2026

  18. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Jul 31, 2026

  19. Disclosed
  20. Disclosed
  21. Disclosed
  22. Disclosed
  23. Disclosed
  24. Disclosed
  25. Disclosed

3 more on file are not listed here. See that month’s insider trades →

All 25 records in this snapshot
  1. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  2. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  3. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 4, 2026

  4. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  5. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  6. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 4, 2026

  7. Disclosed
  8. Disclosed
  9. Disclosed
  10. Disclosed
  11. Disclosed
  12. Disclosed
  13. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  14. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  15. Disclosed
    Bank Of America Corp · Purchase

    Transaction dated Aug 3, 2026

  16. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 3, 2026

  17. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Aug 3, 2026

  18. Disclosed
    Bank Of America Corp · Sale

    Transaction dated Jul 31, 2026

  19. Disclosed
  20. Disclosed
  21. Disclosed
  22. Disclosed
  23. Disclosed
  24. Disclosed
  25. Disclosed

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No Congress trades on NMZ disclosed in the last 90 days.

See every Congress trade on NMZ →

Company insiders

6 buys · 6 sells (32 filed lots) · $982 sold · $978 bought

  1. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  2. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  3. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  4. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  5. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  6. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  7. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  8. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  9. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  10. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
See every insider trade on NMZ →

Filings & events

Company filings (8-K) 3

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Shared information with investors · item 7.011
  • Directors or officers joined, left or got new pay · item 5.021

5% owners (13D / 13G) 3

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 3 filings
  • 13G, just holds: 0 filings

Filed most: Bank Of America Corp /De/ (2) · Wells Fargo & Company/Mn (1)

Biggest named funds (13F)

The largest NMZ holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on NMZ

  1. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  2. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  3. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  4. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  5. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  6. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  7. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  8. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  9. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  10. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  11. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  12. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$10disclosed Aug 6 · filed 2 days after the trade
  13. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$102disclosed Aug 4 · filed 1 day after the trade
  14. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$72disclosed Aug 4 · filed 1 day after the trade
  15. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$102disclosed Aug 4 · filed 1 day after the trade
  16. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$143disclosed Aug 4 · filed 1 day after the trade
  17. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$51disclosed Aug 4 · filed 1 day after the trade
  18. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$102disclosed Aug 4 · filed 1 day after the trade
  19. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$143disclosed Aug 4 · filed 1 day after the trade
  20. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$71disclosed Aug 4 · filed 1 day after the trade
  21. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$52disclosed Aug 4 · filed 4 days after the trade
  22. ▼ SELLMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$72disclosed Aug 4 · filed 1 day after the trade
  23. ▲ BUYBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$71disclosed Aug 4 · filed 1 day after the trade
  24. ▼ SELLBank Of America Corp 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$52disclosed Aug 4 · filed 4 days after the trade
  25. ▲ BUYMerrill Lynch, Pierce, Fenner & Smith Inc. 10% ownerNMZ Nuveen Municipal High Income Opportunity Fund$143disclosed Aug 4 · filed 1 day after the trade
See all 34 trades on NMZ →
People & votes

Which members of Congress traded NMZ, sponsored bills that touch it and voted on them — opens here.