[EFFECT] NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND SEC Filing

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	December 17, 2025 3:00 P.M.

Form:

N-14 8C

CIK:	0001266585
Company Name:	NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
File Number:	333-290590