NYSEMKT:NMZ

Nuveen Municipal High Income Opportunity Fund Stock Insider Trading

Financial Services > Asset Management - Income

Buy NMZ

*Your capital is at risk

$10.20

-0.0400 (-0.391%)

At Close: Jun 03, 2026

Nuveen Municipal High Income Opportunity Fund Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 2.47. In total, the insiders bought 68.57K and sold 53.26K NMZ shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	2.47
● Buy	68.57K shares
● Sell	53.26K shares
52% Buy Activity Moderate Negative Correlation
Buy Signal Low Confidence Apr 27, 2026 Analysis Breakdown: Confidence increased due to high data reliability score of 80.

Historical Insider Trades

Date	Type	Person	Role	Amount
Apr 27, 2026 Buy	Variable Rate Demand Preferred Shares J-Other	Wells Fargo & Company/mn 10 Percent Owner	10% Owner	4 504 Value: $46.3K
Mar 05, 2026 Buy	Common Stock P-Purchase	Siffermann William A Vice President	CEO / President	100 Value: $1K
Dec 19, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 000 Value: $10.5K
Dec 19, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 000 Value: $10.3K
Dec 11, 2025 Buy	Adjustable Rate MuniFund Term Preferred Shares J-Other	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 000 Value: $10.6K
Dec 11, 2025 Sell	Adjustable Rate MuniFund Term Preferred Shares J-Other	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 000 Value: $0
Oct 16, 2025 Buy	Common Stock J-Other	Castro Joseph Officer	Officer	0 Value: $0
Oct 10, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	6 440 Value: $68.5K
Oct 10, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	6 440 Value: $68.0K
Oct 10, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	6 440 Value: $68.5K
Oct 10, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	6 440 Value: $68.0K
Oct 09, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	190 Value: $2K
Oct 09, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	190 Value: $2K
Oct 09, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	190 Value: $2K
Oct 09, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	190 Value: $2K
Sep 17, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	10 784 Value: $114.8K
Sep 17, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	10 784 Value: $113.9K
Sep 17, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	10 784 Value: $113.9K
Sep 17, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	10 784 Value: $114.8K
Sep 10, 2025 Buy	Common Stock J-Other	Page Robert Tanner Officer	Officer	0 Value: $0
Mar 21, 2025 Buy	Common Stock P-Purchase	Siffermann William A Vice President	CEO / President	300 Value: $3K
Mar 21, 2025 Buy	Common Stock P-Purchase	Siffermann William A Vice President	CEO / President	300 Value: $3K
Jan 15, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	5 Value: $54
Jan 15, 2025 Sell	COMMON STOCK S-Sale	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 Value: $11
Jan 15, 2025 Buy	COMMON STOCK P-Purchase	Bank Of America Corp /de/ 10 Percent Owner	10% Owner	1 Value: $11

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

Nuveen Municipal High Income Opportunity Fund is a closed-end fixed income mutual fund launched by Nuveen Investments Inc. The fund is co-managed by Nuveen Fund Advisors LLC and Nuveen Asset Management, LLC. It invests in the fixed income markets of the United States. The fund primarily invests in investment grade tax-exempt municipal securities. The fund was formerly known as Nuveen Municipal High Yield Opportunity Fund. Nuveen Municipal High In...

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