NMZNuveen Municipal High Income Opportunity Fund

FUNDNew York Stock Exchange (XNYS)·USD

Identity

Security key: 19238
Ticker: NMZ
Type: FUND — Fund
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 2003-11-20
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: NMZ

Detail

Enriched 2026-08-14 20:47

Market cap: $2,203,211,714.22
Shares outstanding (class): 215,367,714
Shares outstanding (weighted): 215,367,714
SIC: —
Employees: —
Location: —
Homepage: https://www.nuveen.com
Description: Nuveen Municipal High Income Opp Fund is a diversified, closed-end management investment company. The Fund's primary investment objective is to provide high current income exempt from regular federal income tax. The Fund's secondary investment objective is to seek an attractive total return consistent with its primary objective.

Market cap and share counts drift.

Funds holding this security

1 funds · 1 positions · $14.5K reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
Amplify Municipal CEF High Income ETF Amplify ETF Trust	—	$14.5K	3.74%	1,398 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERNMZ
FIGI_COMPOSITEBBG000BY2HL9
FIGI_SHARE_CLASSBBG001SD1KZ4
CIK0001266585
ISINUS6706821039
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Bond
Sector: Municipal
Industry: —
Source: LLMunreviewed
Self-reported confidence: 0.85
Model: deepseek
Rationale: Closed-end fund investing in municipal bonds, so bond asset class and municipal sector, but no specific industry focus.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.