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NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) Form 424B5 — Oct 23, 2026

$NMZForm 424B5Filed Oct 23, 2026, 12:23 PM ET0001999371-26-023426Original filing

Nuveen Municipal High Income Opportunity Fund (NYSE: NMZ) launched a transferable rights offering to raise up to ~$318.2 million by issuing up to 37,000,000 new common shares — roughly 17% more than the 217.5 million shares outstanding as of October 16, 2026. Shareholders of record on November 2, 2026 receive one Right per share, exercisable at six Rights per new share at an estimated subscription price of $8.60 — 95% of the recent five-day average market price and a discount to the $9.28 NAV. Fully participating shareholders face an estimated NAV dilution of only about 1.08%, and the rights themselves will trade on the NYSE under "NMZ RT" through December 1, 2026.

Key figures

Gross Proceeds
318200000
Offering Price
8.6
Shares Offered
37000000
Shares Outstanding
217525902
Net Assets
2017986666
Record Date
2026-11-02
Nav Per Share
9.28
Rights Ratio
1 new share per 6 Rights (1 for 6)
Rights Ticker
NMZ RT
Expiration Date
2026-12-02
Market Price Oct16
9.13
Offering Expenses
371000
Total Rights Issued
222000000
Max Aggregate Shares
46250000
Premium Discount To Nav
-1.62%
Nav Dilution If Fully Subscribed
-1.08%
Secondary Over Subscription Shares
9250000

AI analysis

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