SC 13D/A

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

Security class unavailable · CUSIP: 670682806

Event date: 2015-07-01

Legacy cover-page extraction is best effort and may not include every reporting person.

Filing-level shares

Unavailable

Percent of class

100.0000%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.