Nuveen Municipal High Income Opportunity Fund Common Stock, $0.0 NMZ

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Nuveen Municipal High Income Opportunity Fund Common Stock, $0.01 par value, per share · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 9.94 → 10.32 · 3.8%
10.74010.3059.870 1 2 3 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 22 Jul 2025 — 23 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
10.3200 10.3400 10.2700 10.3200 500,711
10.3500 10.3500 10.3200 10.3400 491,800
10.3300 10.3700 10.3200 10.3600 852,700
Weekend
Weekend
10.3000 10.3400 10.3000 10.3100 331,900
10.4000 10.4000 10.3400 10.3500 693,500
10.4200 10.4200 10.3600 10.4000 548,600
10.4400 10.4800 10.4100 10.4500 724,700
10.4100 10.4100 10.3600 10.4000 556,700
Weekend
Weekend
10.4500 10.4500 10.3800 10.3900 484,500
10.5000 10.5000 10.4000 10.4400 704,900
10.5000 10.5000 10.4400 10.4700 557,500
10.5700 10.5700 10.4700 10.5100 611,700
10.5500 10.5500 10.5200 10.5500 457,200
Weekend
Weekend
No trading
10.5400 10.5500 10.4800 10.5300 481,600
3 · DEF 14A Next filing day · accepted 01 Jul, 21:19 ET NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND ↗
10.5600 10.5800 10.4700 10.5400 787,200
10.5500 10.5700 10.5300 10.5700 876,600
10.5000 10.5300 10.4800 10.5300 507,100
Weekend
Weekend
10.3900 10.4900 10.3700 10.4900 577,000
10.4500 10.4500 10.3400 10.3700 687,900
10.3700 10.4500 10.3400 10.4500 498,800
10.3400 10.3500 10.2900 10.3400 555,300
10.3600 10.3700 10.2900 10.3300 546,800
Weekend
Weekend
No trading
10.3400 10.3900 10.3100 10.3900 453,500
10.3600 10.3700 10.2800 10.2900 423,500
10.3800 10.3900 10.3100 10.3300 714,100
10.3200 10.3700 10.2800 10.3400 696,700
Weekend
Weekend
10.3200 10.4000 10.3100 10.3700 746,100
10.3200 10.3900 10.2700 10.3300 1,005,700
10.3200 10.3400 10.2600 10.2700 938,100
10.1500 10.3000 10.1500 10.2800 577,400
10.1800 10.2000 10.1100 10.1800 765,000
Weekend
Weekend
10.2200 10.2300 10.1600 10.1800 602,900
10.2000 10.2500 10.1700 10.2400 794,300
10.2400 10.2400 10.1600 10.2000 865,000
10.2800 10.2900 10.2100 10.2400 1,084,300
10.3000 10.3300 10.2600 10.2600 748,900
Weekend
Weekend
10.2500 10.3300 10.2300 10.3100 904,300
10.2500 10.2500 10.1800 10.2500 902,000
10.1900 10.2300 10.1600 10.2300 650,300
10.1000 10.1700 10.0700 10.1700 762,900
No trading
Weekend
Weekend
10.0700 10.0700 10.0100 10.0600 523,000
10.0400 10.0400 9.9700 10.0100 677,600
10.0600 10.0700 9.9900 10.0600 843,000
10.0400 10.0900 10.0000 10.0100 793,800
10.1600 10.1600 10.0800 10.0900 650,800
Weekend
Weekend
10.1600 10.1700 10.1300 10.1300 609,200
10.3100 10.3100 10.2400 10.3000 599,200
10.2400 10.2800 10.2100 10.2800 528,600
10.1800 10.2600 10.1700 10.2600 612,400
10.2200 10.2600 10.1900 10.2200 634,400
Weekend
Weekend
10.2500 10.2700 10.1900 10.2500 644,500
10.2500 10.2600 10.1800 10.2300 552,100
10.2200 10.2800 10.2100 10.2600 593,800
10.1000 10.2000 10.0700 10.2000 671,800
10.1500 10.1500 10.0200 10.0500 1,831,900
Weekend
Weekend
10.1800 10.2000 10.1500 10.1800 903,900
10.1400 10.1900 10.1100 10.1800 771,400
10.2300 10.2400 10.0700 10.1200 1,422,200
10.2800 10.2800 10.2400 10.2800 488,100
10.2800 10.3100 10.2500 10.2800 399,800
Weekend
Weekend
2 · 424B3 After market open · 13:34 ET PROSPECTUS ↗
10.3000 10.3100 10.2600 10.2800 290,400
10.3500 10.3500 10.3000 10.3100 254,700
10.4000 10.4000 10.3200 10.3500 323,300
10.4100 10.6500 10.3400 10.4200 272,100
10.3800 10.4000 10.3400 10.3900 384,200
Weekend
Weekend
10.4200 10.4200 10.3400 10.3500 400,800
10.3300 10.3600 10.3000 10.3300 335,600
10.3000 10.3300 10.2900 10.2900 408,700
10.4100 10.4200 10.3000 10.4200 574,900
10.4000 10.4200 10.3300 10.4100 450,100
Weekend
Weekend
10.4700 10.4700 10.3800 10.3900 225,000
10.3900 10.4300 10.3300 10.4300 262,500
10.3900 10.4000 10.3300 10.3900 516,000
10.2100 10.2900 10.1900 10.2600 444,800
10.2900 10.3100 10.2000 10.2300 472,300
Weekend
Weekend
No trading
10.3000 10.3900 10.2600 10.3300 416,600
10.3800 10.3800 10.3000 10.3400 493,200
10.0700 10.3800 10.0500 10.3800 548,700
10.1200 10.2200 9.9800 10.0100 798,500
Weekend
Weekend
10.0500 10.1000 10.0000 10.0700 610,000
10.2300 10.2400 10.1000 10.1000 456,200
10.2300 10.2600 10.1900 10.2600 307,400
10.2200 10.2300 10.1300 10.1800 487,300
10.2600 10.2800 10.2200 10.2800 395,300
Weekend
Weekend
10.3300 10.3300 10.2000 10.2400 453,000
10.3500 10.3600 10.3100 10.3600 444,100
10.3800 10.4000 10.3600 10.3700 215,000
10.3900 10.4300 10.3700 10.3900 333,800
10.4600 10.4600 10.3800 10.3900 281,300
Weekend
Weekend
10.3900 10.4300 10.3600 10.4300 379,000
10.5000 10.5000 10.4000 10.4200 368,300
10.5400 10.5500 10.4900 10.5100 320,300
10.5200 10.5500 10.4800 10.5500 601,000
10.5400 10.5500 10.4300 10.4800 332,200
Weekend
Weekend
10.4600 10.5800 10.4000 10.5800 491,400
10.5400 10.5400 10.2300 10.5100 570,600
10.6600 10.6600 10.5500 10.5500 599,300
10.7000 10.7100 10.6200 10.6600 646,600
10.6900 10.7400 10.6100 10.7100 722,900
Weekend
Weekend
10.7100 10.7200 10.6600 10.6900 460,200
10.6800 10.7000 10.6700 10.6700 1,100,600
10.6700 10.7100 10.6500 10.6500 520,900
10.6600 10.6800 10.6400 10.6600 404,600
10.6400 10.6600 10.6200 10.6400 401,700
Weekend
Weekend
10.6200 10.6300 10.6000 10.6300 247,300
10.6300 10.6500 10.5500 10.6000 308,500
10.6000 10.6300 10.5900 10.6200 397,600
10.6000 10.6200 10.5600 10.6200 342,000
No trading
Weekend
Weekend
10.5600 10.6000 10.5400 10.6000 313,100
10.6500 10.6600 10.5800 10.6000 461,700
10.6400 10.6500 10.6000 10.6400 366,700
10.6500 10.6500 10.5900 10.6200 324,700
10.5700 10.6200 10.5400 10.6100 448,200
Weekend
Weekend
10.5600 10.5600 10.5000 10.5400 487,400
10.5400 10.5600 10.5100 10.5400 448,200
10.4900 10.5700 10.4800 10.5000 680,300
10.5300 10.5400 10.4500 10.5100 546,000
10.4500 10.5000 10.4300 10.5000 734,000
Weekend
Weekend
10.3600 10.4300 10.3500 10.4200 411,600
10.4000 10.4000 10.3300 10.3700 306,200
10.3700 10.3900 10.3200 10.3900 564,300
10.2900 10.3800 10.2300 10.3800 497,400
10.3700 10.3700 10.2600 10.3000 541,100
Weekend
Weekend
10.3600 10.3600 10.2900 10.3500 422,300
10.4000 10.4000 10.2900 10.3500 526,200
10.3900 10.4000 10.2900 10.3700 396,400
10.4100 10.4400 10.3500 10.3600 386,600
No trading
Weekend
Weekend
10.4500 10.4800 10.4000 10.4400 313,500
10.4900 10.5200 10.4500 10.4500 300,900
10.5000 10.5600 10.4900 10.5400 399,000
10.4700 10.4800 10.4300 10.4800 273,000
10.3900 10.4300 10.3700 10.4300 368,900
Weekend
Weekend
10.3500 10.4000 10.3200 10.3900 330,600
10.3800 10.3900 10.3200 10.3200 375,000
10.3200 10.3800 10.3000 10.3700 526,900
10.2600 10.2800 10.2300 10.2600 437,000
10.1900 10.2500 10.1700 10.2300 394,800
Weekend
Weekend
10.2500 10.2600 10.1600 10.2000 375,900
No trading
10.2800 10.2900 10.1500 10.1900 1,249,000
10.1700 10.2700 10.1500 10.2600 938,400
10.1100 10.1500 10.0300 10.1400 1,576,900
Weekend
Weekend
10.1900 10.2000 10.1000 10.1000 760,200
No trading
10.1500 10.1800 10.1100 10.1700 577,900
10.1600 10.2000 10.1200 10.1400 826,500
10.2400 10.2900 10.1600 10.1900 1,328,100
Weekend
Weekend
10.3800 10.3800 10.2600 10.2800 647,100
10.3800 10.4100 10.3100 10.3400 609,000
1 · 424B3 Next filing day · accepted 17 Dec, 20:52 ET PROSPECTUS ↗
10.4000 10.4500 10.3200 10.3300 522,100
10.4700 10.4700 10.4000 10.4000 528,500
10.5300 10.5300 10.3900 10.4500 618,700
Weekend
Weekend
10.5600 10.5800 10.5100 10.5400 288,300
10.6000 10.6000 10.5600 10.5700 259,400
10.5700 10.5900 10.5300 10.5700 340,500
10.5400 10.5800 10.5200 10.5400 532,400
10.5800 10.6000 10.4900 10.5400 514,700
Weekend
Weekend
10.6200 10.6200 10.5200 10.5800 455,400
10.6200 10.6200 10.5600 10.5900 560,000
10.6400 10.6400 10.5800 10.6000 594,000
10.6000 10.6200 10.5400 10.6200 375,100
10.6300 10.6300 10.5700 10.6000 529,400
Weekend
Weekend
10.6500 10.6500 10.5900 10.6500 182,600
No trading
10.6300 10.6600 10.5900 10.6200 318,900
10.6000 10.6400 10.5800 10.6400 266,200
10.6000 10.6300 10.5600 10.6100 284,400
Weekend
Weekend
10.5800 10.6000 10.5000 10.5500 257,200
10.6400 10.6400 10.5300 10.5400 251,800
10.6600 10.6600 10.5800 10.6200 238,600
10.6600 10.6700 10.5900 10.6500 253,000
10.6700 10.7200 10.5900 10.6400 443,900
Weekend
Weekend
10.6900 10.7000 10.6100 10.6600 232,700
10.7200 10.7600 10.7100 10.7400 303,600
10.7100 10.7700 10.6800 10.7400 348,300
10.6900 10.7400 10.6600 10.7200 400,700
10.6100 10.6800 10.6000 10.6600 263,500
Weekend
Weekend
10.6100 10.6500 10.5700 10.6000 254,400
10.6700 10.7100 10.5900 10.6100 291,900
10.6900 10.7400 10.6200 10.6400 370,200
10.6500 10.6900 10.5800 10.6700 315,100
10.6500 10.6700 10.6000 10.6600 406,600
Weekend
Weekend
10.6000 10.6600 10.5900 10.6500 361,700
10.5600 10.6400 10.5600 10.5900 370,300
10.6300 10.6600 10.5500 10.6500 377,600
10.5900 10.6500 10.5700 10.6300 333,100
10.5500 10.5900 10.5300 10.5900 236,500
Weekend
Weekend
10.5500 10.5700 10.5200 10.5400 268,100
10.5300 10.5500 10.4800 10.5300 276,200
10.6400 10.6400 10.5100 10.5300 208,000
10.6400 10.6500 10.5900 10.6400 279,800
10.6100 10.6700 10.5600 10.5900 190,300
Weekend
Weekend
10.6700 10.7100 10.5100 10.5700 329,500
10.6500 10.6800 10.6100 10.6500 231,700
10.6700 10.6900 10.6100 10.6500 183,400
10.7000 10.7500 10.6700 10.6900 279,400
10.6800 10.7200 10.6500 10.6900 328,200
Weekend
Weekend
10.5800 10.6800 10.5800 10.6500 193,200
10.5900 10.6600 10.5700 10.6300 263,600
10.6000 10.6300 10.5700 10.6200 241,200
10.5700 10.6000 10.5300 10.5700 315,600
10.5600 10.5900 10.5400 10.5600 229,900
Weekend
Weekend
10.6300 10.6300 10.5000 10.5600 324,200
10.6500 10.6500 10.5700 10.6100 212,000
10.6100 10.6400 10.5800 10.6300 535,800
10.4800 10.5900 10.4300 10.5900 316,900
10.5000 10.5000 10.4200 10.4600 202,600
Weekend
Weekend
10.4300 10.4800 10.4000 10.4600 144,000
10.4500 10.4500 10.3800 10.4300 266,000
10.4500 10.4700 10.3900 10.4500 279,500
10.4500 10.4900 10.4400 10.4900 306,700
10.5800 10.5800 10.4400 10.4400 469,200
Weekend
Weekend
10.6300 10.6400 10.5700 10.6200 157,700
10.6100 10.6500 10.5400 10.6500 267,000
10.6300 10.6600 10.5600 10.6200 554,900
10.5600 10.6000 10.5000 10.5900 373,700
10.5500 10.5600 10.4500 10.5400 367,900
Weekend
Weekend
10.5400 10.5800 10.5100 10.5700 251,300
10.5300 10.5600 10.4700 10.5300 306,300
10.3700 10.5000 10.3700 10.5000 319,800
10.3900 10.3900 10.3000 10.3400 382,100
10.2600 10.3900 10.2600 10.3800 544,800
Weekend
Weekend
10.1800 10.2200 10.1500 10.2100 493,300
10.1000 10.1200 10.0800 10.1200 349,600
10.1000 10.1000 10.0200 10.0900 428,300
10.1000 10.1200 10.0300 10.0600 334,000
No trading
Weekend
Weekend
10.0100 10.1300 10.0100 10.1300 290,300
10.0900 10.0900 9.9700 10.0300 405,600
10.0800 10.1000 10.0200 10.0600 274,700
10.0700 10.0800 10.0300 10.0800 207,400
10.0400 10.0800 10.0100 10.0600 281,000
Weekend
Weekend
10.0200 10.1000 9.9700 10.0200 424,800
9.9800 10.0000 9.9200 9.9700 246,300
10.0000 10.0300 9.9800 10.0000 140,800
10.0400 10.0600 9.9800 9.9900 318,400
10.0700 10.0700 10.0200 10.0500 324,200
Weekend
Weekend
10.0700 10.1100 10.0300 10.0800 333,000
10.1500 10.1800 10.1300 10.1500 216,400
10.1200 10.1800 10.1100 10.1400 362,700
10.0400 10.1100 10.0300 10.1000 311,600
10.0700 10.1000 10.0400 10.0500 316,400
Weekend
Weekend
10.0400 10.0700 9.9800 10.0600 286,900
10.0800 10.1000 10.0400 10.0400 292,600
10.0700 10.1300 10.0400 10.0800 283,000
10.0200 10.1000 10.0200 10.0700 380,000
10.0700 10.0800 10.0100 10.0200 412,200
Weekend
Weekend
9.9700 10.0800 9.9500 10.0700 337,900
9.8900 9.9600 9.8900 9.9300 249,000
9.9300 9.9300 9.8700 9.8700 227,900
9.8700 9.9400 9.8700 9.9300 333,700
9.8800 9.8900 9.8300 9.8700 334,600
Weekend
Weekend
9.8800 9.9400 9.8700 9.8800 196,300
9.8700 9.9700 9.8700 9.8800 369,700
9.9400 9.9400 9.8800 9.9100 512,300
9.9300 9.9500 9.9100 9.9400 253,300

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

3 DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (opens SEC filing in a new tab) Next filing day · accepted 01 Jul, 21:19 ET Summarise
2 424B3 PROSPECTUS (opens SEC filing in a new tab) After market open · 13:34 ET Summarise
1 424B3 PROSPECTUS (opens SEC filing in a new tab) Next filing day · accepted 17 Dec, 20:52 ET Summarise