The page is the record's research on the issuer — no analyst, no rating, no view.

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) — research page

US · us-cm-kg/NYSE/NMZ · as of 2026-11-08

Identity and listing

The issuer is NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND, listed on NYSE under ticker NMZ, with ISIN US6706821039 and LEI BN7VUB6JBYC7TTWZRZ58. Its security type is non-operating entity type (other), and its jurisdiction is United States, Massachusetts. Segment and sector are not on the record. Its listing status is listed, not halted.

fieldvaluesource · read date
nameNUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUNDsource · 2026-11-08
exchangeNYSEsource · 2026-11-08
tickerNMZsource · 2026-11-08
ISINUS6706821039source · 2026-10-01
LEIBN7VUB6JBYC7TTWZRZ58source · 2026-11-08
security typeNon-operating entity type (other)source · 2026-11-08
segmentnot on the record
sectornot on the record
jurisdictionUnited States — Massachusettssource · 2026-11-08
statuslisted, not haltedsource · 2026-11-08

The disclosure read

The record holds 61 filings in the twelve months to 2026-11-08, across 41 filing days: 44 regulatory filings, 12 directors' dealings, 4 prospectuses and 1 AGM/EGM filing. The median gap between filing days is 6.5 days, against a NYSE median of 6.0 days. The record holds 5 days from the latest filing to the record date, against a NYSE median of 4.0 days. The latest filing is dated 2026-11-03 and is a regulatory filing. The sector median is not on the record for the US market.

filingsmedian gap between filing daysdays from latest filing to as-of
this issuer616.55
exchange median: NYSE (3256 issuers)6464
datetypecategoryfiling
2026-11-03regulatory_filingN-23C-2N-23C-2 — NOTICE OF INTENTION TO REDEEM SECURITIES
2026-10-28regulatory_filing497AD497AD — FILING BY CERTAIN INVESTMENT COMPANIES
2026-10-23prospectus424B5424B5 — PROSPECTUS SUPPLEMENT
2026-10-22regulatory_filing497AD497AD — FORM 497AD
2026-10-02prospectus424B3424B3 — PROSPECTUS FILED PURSUANT TO RULE 424(B)(3)

window 2025-11-08 to 2026-11-08 · the node's disclosure lines, as get_filings serves them

Auditor

The auditor is not on the record, because the latest annual report cover carries no dei:AuditorName tag. The auditor's location is not on the record. The record holds no auditor changes.

Events and halts

The record holds no listing, delisting or name change lines. Domicile change is not on the record, because EDGAR states no dated change of state of incorporation on a filing line. Segment move is not on the record, because the exchanges' tier transfers are not EDGAR filings. The issuer is listed, not halted.

Orderability

The outcome is not determinable, because the chapter's orderability section carries no client categories and so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04.

rule acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability

Coverage

No research houses were found on the issuer's own investor-relations page.

Open research

No openly published research notes were found on the record.

Licensed

Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.

licensorentitlementtitledatesource
none loaded

As-of depth

The record holds sealed years 2021, 2022, 2023, 2024, 2025 and 2026 for this issuer. The market's earliest sealed date is 2021-01-04, and the live record began on 2026-09-12.

Sources

8 source pages are named on this page; every value above carries its own source page and read date in the numbers.

10.1
https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)
10.2
https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)
10.3
https://data.sec.gov/submissions/CIK0001266585.json (identity.jurisdiction)
10.4
https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)
10.5
https://mcp.us-cm-kg.ai/events/NYSE/NMZ (the disclosure lines)
10.6
https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)
10.7
https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)
10.8
https://mcp.us-cm-kg.ai/record/NYSE/NMZ (the record)

Read it by agent

The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"US6706821039"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:3611ad599ba1ad17.