NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND SEC EDGAR Filings (CIK 0001266585)

SEC EDGAR filings, ownership reports, and insider transactions for NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND.

Symbol
NMZ on NYSE
Business address
333 W Wacker Drive, Chicago, IL, 60606
State of incorporation
MA
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NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND has filed 632 SEC EDGAR filings since 17 Oct 2003

Latest Filings

Recent SEC filings for NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND including 425, 4, 3 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 09 Mar 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 09 Mar 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 09 Mar 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 09 Mar 2026
4 Open 4 document View SEC filing for 4 06 Mar 2026 05 Mar 2026
425 Open 425 document View SEC filing for 425 FILING UNDER RULE 425 27 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 OF CERTAIN PROSPECTUSES AND COMMUNICATIONS 26 Feb 2026
3 Open 3 document View SEC filing for 3 23 Feb 2026 16 Oct 2025
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 04 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 04 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 04 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 02 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 02 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 02 Feb 2026
425 Open 425 document View SEC filing for 425 FILING UNDER RULE 425 23 Jan 2026
425 Open 425 document View SEC filing for 425 FILING UNDER RULE 425 23 Jan 2026
425 Open 425 document View SEC filing for 425 FILING UNDER RULE 425 23 Jan 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 16 Jan 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 16 Jan 2026
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 16 Jan 2026
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2026 31 Oct 2025 811-21449
N-CSR Open N-CSR document | Open XBRL data View SEC filing for N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 07 Jan 2026 31 Oct 2025 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 30 Dec 2025 31 Oct 2025 811-21449
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 29 Dec 2025
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 29 Dec 2025
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 29 Dec 2025
425 Open 425 document View SEC filing for 425 FILING UNDER SECURITIES ACT RULE 425 29 Dec 2025 811-21449
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 22 Dec 2025 19 Dec 2025
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS 18 Dec 2025 333-290590
EFFECT Open EFFECT document View SEC filing for EFFECT 17 Dec 2025 333-290590
N-14 8C/A Open N-14 8C/A document | Open XBRL data View SEC filing for N-14 8C/A AMENDMENT TO FORM N-14 8C 16 Dec 2025 333-290590
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 15 Dec 2025 005-84378
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Dec 2025 11 Dec 2025
N-14 8C/A Open N-14 8C/A document | Open XBRL data View SEC filing for N-14 8C/A INITIAL REGISTRATION ON FORM N-14 18 Nov 2025 333-290590
3 Open 3 document View SEC filing for 3 05 Nov 2025 10 Sep 2025
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES 31 Oct 2025 31 Oct 2025 817-01126
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Oct 2025 10 Oct 2025
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Oct 2025 09 Oct 2025
N-14 8C Open N-14 8C document | Open XBRL data View SEC filing for N-14 8C INITIAL REGISTRATION STATEMENT ON FORM N-14 29 Sep 2025 333-290590
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 26 Sep 2025 31 Jul 2025 811-21449
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 19 Sep 2025 17 Sep 2025
N-PX Open N-PX document View SEC filing for N-PX 22 Aug 2025 30 Jun 2025 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 31 Jul 2025 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 07 Jul 2025 30 Apr 2025 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 30 Jun 2025 14 Aug 2025 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 26 Jun 2025 30 Apr 2025 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS 09 May 2025 333-277778
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES 28 Apr 2025 28 Apr 2025 817-01126
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 26 Mar 2025 31 Jan 2025 811-21449
4 Open 4 document View SEC filing for 4 24 Mar 2025 21 Mar 2025
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Jan 2025 16 Jan 2025
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2025 31 Oct 2024 811-21449
N-CSR Open N-CSR document | Open XBRL data View SEC filing for N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 06 Jan 2025 31 Oct 2024 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 26 Dec 2024 31 Oct 2024 811-21449
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2024 05 Jun 2014
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 13 Dec 2024 005-84378
4 Open 4 document View SEC filing for 4 FORM 4 06 Dec 2024 03 Dec 2024
3 Open 3 document View SEC filing for 3 03 Dec 2024 02 Dec 2024
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS 31 Oct 2024 333-277778
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NOTIFICATION OF REPURCHASE OFFER 28 Oct 2024 28 Oct 2024 817-01126
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 25 Sep 2024 31 Jul 2024 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 10 Sep 2024 811-21449
N-PX Open N-PX document View SEC filing for N-PX 29 Aug 2024 30 Jun 2024 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 02 Jul 2024 30 Apr 2024 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 27 Jun 2024 08 Aug 2024 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 25 Jun 2024 30 Apr 2024 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS 20 May 2024 333-277778
N-PX/A Open N-PX/A document View SEC filing for N-PX/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 17 May 2024 30 Jun 2023 811-21449
424B2 Open 424B2 document | Open XBRL data View SEC filing for 424B2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Apr 2024 333-277778
CORRESP Open CORRESP document View SEC filing for CORRESP 01 Apr 2024
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 22 Mar 2024 31 Jan 2024 811-21449
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 20 Mar 2024 20 Mar 2024 817-01126
3 Open 3 document View SEC filing for 3 11 Mar 2024 28 Feb 2024
N-2ASR Open N-2ASR document | Open XBRL data View SEC filing for N-2ASR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 08 Mar 2024 811-21449,333-277778
3 Open 3 document View SEC filing for 3 08 Mar 2024 28 Feb 2024
8-K Open 8-K document View SEC filing for 8-K NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 06 Mar 2024 06 Mar 2024 811-21449
N-CEN Open N-CEN document View SEC filing for N-CEN 16 Jan 2024 31 Oct 2023 811-21449
3 Open 3 document View SEC filing for 3 11 Jan 2024 01 Jan 2024
3 Open 3 document View SEC filing for 3 11 Jan 2024 01 Jan 2024
3 Open 3 document View SEC filing for 3 11 Jan 2024 01 Jan 2024
3 Open 3 document View SEC filing for 3 11 Jan 2024 01 Jan 2024
N-CSR Open N-CSR document | Open XBRL data View SEC filing for N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 05 Jan 2024 31 Oct 2023 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 424B3 02 Jan 2024 333-253965
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Dec 2023 31 Oct 2023 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 01 Dec 2023 811-21449
4 Open 4 document View SEC filing for 4 26 Oct 2023 26 Oct 2023
4 Open 4 document View SEC filing for 4 25 Oct 2023 25 Oct 2023
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN CEFS : NVG, NMZ, NXP, NXC, NMI AND NMCO 24 Oct 2023 333-253965
8-K Open 8-K document View SEC filing for 8-K NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13 Oct 2023 13 Oct 2023 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 NEA,NVG,NBB,NDMO,NMZ,NXP,NXC 13 Oct 2023 333-253965
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 06 Oct 2023 06 Oct 2023 817-01126
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 27 Sep 2023 31 Jul 2023 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 21 Aug 2023 30 Jun 2023 811-21449
4 Open 4 document View SEC filing for 4 10 Aug 2023 10 Aug 2023
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 14 Jul 2023 333-253965
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 06 Jul 2023 30 Apr 2023 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 30 Jun 2023 09 Aug 2023 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Jun 2023 30 Apr 2023 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 31 May 2023 333-253965
4 Open 4 document View SEC filing for 4 26 Apr 2023 24 Apr 2023
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 26 Apr 2023 005-84378
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 24 Apr 2023
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 26 Apr 2023 005-84378
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 12 Apr 2023 005-84378
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 12 Apr 2023 03 Apr 2023
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 12 Apr 2023 333-253965
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 05 Apr 2023 005-84378
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Apr 2023 03 Apr 2023
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Mar 2023 31 Jan 2023 811-21449
N-CEN Open N-CEN document View SEC filing for N-CEN 17 Jan 2023 31 Oct 2022 811-21449
N-CSR Open N-CSR document | Open XBRL data View SEC filing for N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 09 Jan 2023 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 27 Dec 2022 31 Oct 2022 811-21449
4 Open 4 document View SEC filing for 4 28 Nov 2022 28 Nov 2022
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 02 Nov 2022 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 30 Sep 2022 333-253965
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Sep 2022 31 Jul 2022 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 22 Aug 2022 30 Jun 2022 811-21449
3 Open 3 document View SEC filing for 3 15 Aug 2022 04 Aug 2022
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 07 Jul 2022 30 Apr 2022 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 29 Jun 2022 30 Apr 2022 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Jun 2022 05 Aug 2022 811-21449
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Jun 2022 09 Jun 2022
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 13 Jun 2022 005-84378
3 Open 3 document View SEC filing for 3 08 Jun 2022 01 Jun 2022
4 Open 4 document View SEC filing for 4 26 May 2022 26 May 2022
3 Open 3 document View SEC filing for 3 21 Apr 2022 14 Apr 2022
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 30 Mar 2022 31 Jan 2022 811-21449
8-K Open 8-K document View SEC filing for 8-K 8-K 25 Feb 2022 24 Feb 2022 811-21449
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2022 31 Oct 2021 811-21449
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 06 Jan 2022 31 Oct 2021 811-21449
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 04 Jan 2022 005-84378
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Dec 2021 31 Oct 2021 811-21449
POS EX Open POS EX document View SEC filing for POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 17 Dec 2021 333-253965
424B5 Open 424B5 document View SEC filing for 424B5 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 17 Dec 2021 333-253965
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Nov 2021 333-253965
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 27 Sep 2021 31 Jul 2021 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 24 Sep 2021 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 16 Aug 2021 30 Jun 2021 811-21449
3 Open 3 document View SEC filing for 3 08 Jul 2021 02 Jun 2021
3 Open 3 document View SEC filing for 3 08 Jul 2021 02 Jun 2021
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 07 Jul 2021 30 Apr 2021 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 28 Jun 2021 30 Apr 2021 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 25 Jun 2021 04 Aug 2021 811-21449
424B3 Open 424B3 document View SEC filing for 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 01 Jun 2021 333-253965
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 28 Apr 2021 005-84378
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 28 Apr 2021 19 Apr 2021
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 21 Apr 2021 005-84378
CORRESP Open CORRESP document View SEC filing for CORRESP 09 Apr 2021
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 29 Mar 2021 31 Jan 2021 811-21449
POS EX Open POS EX document View SEC filing for POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 08 Mar 2021 333-253965
424B5 Open 424B5 document View SEC filing for 424B5 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 08 Mar 2021 333-253965
N-2ASR Open N-2ASR document View SEC filing for N-2ASR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 08 Mar 2021 811-21449,333-253965
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2021 31 Oct 2020 811-21449
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 07 Jan 2021 31 Oct 2020 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 29 Dec 2020 31 Oct 2020 811-21449
3 Open 3 document View SEC filing for 3 25 Nov 2020 16 Nov 2020
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 13 Oct 2020 811-21449
8-K Open 8-K document View SEC filing for 8-K 8-K 06 Oct 2020 05 Oct 2020 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 29 Sep 2020 31 Jul 2020 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 24 Aug 2020 30 Jun 2020 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 07 Jul 2020 30 Apr 2020 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 29 Jun 2020 30 Apr 2020 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 26 Jun 2020 05 Aug 2020 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 27 Mar 2020 31 Jan 2020 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 25 Mar 2020 333-235960
3 Open 3 document View SEC filing for 3 06 Mar 2020 27 Feb 2020
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Mar 2020 333-235960
POS EX Open POS EX document View SEC filing for POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 02 Mar 2020 333-235960
EFFECT Open EFFECT document View SEC filing for EFFECT 28 Feb 2020 333-235960
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Feb 2020
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 27 Feb 2020 811-21449,333-235960
CORRESP Open CORRESP document View SEC filing for CORRESP 20 Feb 2020
N-2 Open N-2 document View SEC filing for N-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 17 Jan 2020 811-21449,333-235960
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2020 31 Oct 2019 811-21449
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 08 Jan 2020 31 Oct 2019 811-21449
NPORT-P Open NPORT-P document View SEC filing for NPORT-P 27 Dec 2019 31 Oct 2019 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 28 Oct 2019 811-21449
3 Open 3 document View SEC filing for 3 17 Oct 2019 07 Oct 2019
NPORT-EX Open NPORT-EX document View SEC filing for NPORT-EX 27 Sep 2019 31 Jul 2019 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 19 Aug 2019 30 Jun 2019 811-21449
3 Open 3 document View SEC filing for 3 16 Aug 2019 08 Aug 2019
3 Open 3 document View SEC filing for 3 16 Aug 2019 08 Aug 2019
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 08 Jul 2019 30 Apr 2019 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Jun 2019 07 Aug 2019 811-21449
N-CEN/A Open N-CEN/A document View SEC filing for N-CEN/A 04 Jun 2019 31 Oct 2018 811-21449
3 Open 3 document View SEC filing for 3 18 Apr 2019 12 Apr 2019
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 18 Apr 2019 333-220101
486BPOS Open 486BPOS document View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 11 Apr 2019 811-21449,333-220101
N-Q Open N-Q document View SEC filing for N-Q NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 01 Apr 2019 31 Jan 2019 811-21449
N-CEN Open N-CEN document View SEC filing for N-CEN 14 Jan 2019 31 Oct 2018 811-21449
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 07 Jan 2019 31 Oct 2018 811-21449
4 Open 4 document View SEC filing for 4 16 Nov 2018 15 Nov 2018
N-Q Open N-Q document View SEC filing for N-Q NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Sep 2018 31 Jul 2018 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 05 Sep 2018 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 20 Aug 2018 30 Jun 2018 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 09 Jul 2018 30 Apr 2018 811-21449
CORRESP Open CORRESP document View SEC filing for CORRESP 05 Jul 2018
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Jun 2018 08 Aug 2018 811-21449
N-Q Open N-Q document View SEC filing for N-Q NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 Mar 2018 31 Jan 2018 811-21449
3 Open 3 document View SEC filing for 3 28 Feb 2018 28 Feb 2018
3 Open 3 document View SEC filing for 3 28 Feb 2018 28 Feb 2018
4 Open 4 document View SEC filing for 4 FORM 4 27 Feb 2018 26 Feb 2018
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A NONE 27 Feb 2018 005-84378
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 31 Jan 2018 29 Jan 2018 817-01126
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 08 Jan 2018 31 Oct 2017 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 29 Dec 2017 31 Oct 2017 811-21449
N-Q Open N-Q document View SEC filing for N-Q NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 Sep 2017 31 Jul 2017 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 22 Sep 2017 333-220101
EFFECT Open EFFECT document View SEC filing for EFFECT 18 Sep 2017 333-220101
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Sep 2017
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 14 Sep 2017 811-21449,333-220101
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Sep 2017
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 08 Sep 2017 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 Aug 2017 30 Jun 2017 811-21449
N-2 Open N-2 document View SEC filing for N-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 22 Aug 2017 811-21449,333-220101
3 Open 3 document View SEC filing for 3 11 Aug 2017 02 Aug 2017
3 Open 3 document View SEC filing for 3 11 Aug 2017 02 Aug 2017
4 Open 4 document View SEC filing for 4 10 Aug 2017 08 Aug 2017
3 Open 3 document View SEC filing for 3 10 Aug 2017 02 Aug 2017
3 Open 3 document View SEC filing for 3 09 Aug 2017 02 Aug 2017
3 Open 3 document View SEC filing for 3 10 Jul 2017 01 Jul 2017
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 06 Jul 2017 30 Apr 2017 811-21449
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 29 Jun 2017 30 Apr 2017 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 23 Jun 2017 02 Aug 2017 811-21449
4 Open 4 document View SEC filing for 4 18 May 2017 18 May 2017
3 Open 3 document View SEC filing for 3 18 May 2017 12 Jul 2013
144 Open 144 document View SEC filing for 144 144 15 May 2017 811-21449
N-Q Open N-Q document View SEC filing for N-Q NMZ 31 Mar 2017 31 Jan 2017 811-21449
497J Open 497J document View SEC filing for 497J NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Feb 2017 333-211793
486BPOS Open 486BPOS document View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 10 Feb 2017 811-21449,333-211793
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 09 Jan 2017 31 Oct 2016 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 30 Dec 2016 31 Oct 2016 811-21449
4 Open 4 document View SEC filing for 4 09 Dec 2016 07 Dec 2016
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 11 Oct 2016 333-211793
3 Open 3 document View SEC filing for 3 11 Oct 2016 01 Oct 2016
EFFECT Open EFFECT document View SEC filing for EFFECT 06 Oct 2016 333-211793
CORRESP Open CORRESP document View SEC filing for CORRESP 06 Oct 2016
CORRESP Open CORRESP document View SEC filing for CORRESP 06 Oct 2016
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 05 Oct 2016 811-21449,333-211793
CORRESP Open CORRESP document View SEC filing for CORRESP 04 Oct 2016
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 30 Sep 2016 812-14619-64
N-Q Open N-Q document View SEC filing for N-Q NMZ 29 Sep 2016 31 Jul 2016 811-21449
AW WD Open AW WD document View SEC filing for AW WD NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13 Sep 2016 333-211793
AW Open AW document View SEC filing for AW NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13 Sep 2016 333-187032
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 12 Sep 2016 811-21449,333-211793
AW Open AW document View SEC filing for AW NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 12 Sep 2016 333-211793
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 31 Aug 2016 811-21449
25 Open 25 document View SEC filing for 25 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 30 Aug 2016 001-31887
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 Aug 2016 30 Jun 2016 811-21449
CERTNYS Open CERTNYS document View SEC filing for CERTNYS AUTO-GENERATED PAPER DOCUMENT 23 Aug 2016 001-31887
8-A12B Open 8-A12B document View SEC filing for 8-A12B NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 23 Aug 2016 001-31887
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 05 Aug 2016 05 Aug 2016 811-21449
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 21 Jul 2016 811-21449,333-187032
3 Open 3 document View SEC filing for 3 08 Jul 2016 01 Jul 2016
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 07 Jul 2016 30 Apr 2016 811-21449
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 01 Jul 2016 812-14619-64
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 30 Jun 2016 30 Apr 2016 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 24 Jun 2016 03 Aug 2016 811-21449
3 Open 3 document View SEC filing for 3 24 Jun 2016 15 Jun 2016
N-2 Open N-2 document View SEC filing for N-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 02 Jun 2016 811-21449,333-211793
N-Q Open N-Q document | Open XBRL data View SEC filing for N-Q NMZ 31 Mar 2016 31 Jan 2016 811-21449
497J Open 497J document View SEC filing for 497J NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 31 Mar 2016 333-187032
486BPOS Open 486BPOS document | Open XBRL data View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Mar 2016 811-21449,333-187032
3 Open 3 document View SEC filing for 3 24 Feb 2016 15 Feb 2016
40-APP Open 40-APP document View SEC filing for 40-APP EXEMPTION APPLICATION 23 Feb 2016 812-14619-64
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDED SCHEDULE 13G 09 Feb 2016 005-84378
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 07 Jan 2016 31 Oct 2015 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 30 Dec 2015 31 Oct 2015 811-21449
4 Open 4 document View SEC filing for 4 17 Dec 2015 15 Dec 2015
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 22 Oct 2015 812-14258-28
N-Q Open N-Q document View SEC filing for N-Q NMZ 29 Sep 2015 31 Jul 2015 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 28 Aug 2015 811-21449
3 Open 3 document View SEC filing for 3 14 Aug 2015 06 Aug 2015
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13 Aug 2015 30 Jun 2015 811-21449
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Jul 2015
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 08 Jul 2015 30 Apr 2015 811-21449
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2015 01 Jul 2015
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A NONE 02 Jul 2015 005-84378
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 01 Jul 2015 05 Aug 2015 811-21449
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 29 Jun 2015 30 Apr 2015 811-21449
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 22 May 2015 812-14258-28
N-Q Open N-Q document View SEC filing for N-Q NMZ 01 Apr 2015 31 Jan 2015 811-21449
4 Open 4 document View SEC filing for 4 23 Mar 2015 19 Mar 2015
3 Open 3 document View SEC filing for 3 05 Mar 2015 24 Feb 2015
497J Open 497J document View SEC filing for 497J NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 02 Mar 2015 333-187032
486BPOS Open 486BPOS document View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 23 Feb 2015 811-21449,333-187032
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDED SCHEDULE 13G 09 Jan 2015 005-84378
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 08 Jan 2015 31 Oct 2014 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 31 Dec 2014 31 Oct 2014 811-21449
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 08 Dec 2014 812-14258-28
4 Open 4 document View SEC filing for 4 06 Oct 2014 02 Oct 2014
N-Q Open N-Q document View SEC filing for N-Q NMZ 29 Sep 2014 31 Jul 2014 811-21449
4 Open 4 document View SEC filing for 4 03 Sep 2014 29 Aug 2014
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 21 Aug 2014 30 Jun 2014 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 14 Aug 2014 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 07 Jul 2014 30 Apr 2014 811-21449
DEFA14A Open DEFA14A document View SEC filing for DEFA14A PRESS RELEASE 03 Jul 2014 811-21449
40-APP/A Open 40-APP/A document View SEC filing for 40-APP/A EXEMPTION APPLICATION 01 Jul 2014 812-14258-28
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 30 Jun 2014 30 Apr 2014 811-21449
DEFA14A Open DEFA14A document View SEC filing for DEFA14A PRESS RELEASE 18 Jun 2014 811-21449
DEFA14A Open DEFA14A document View SEC filing for DEFA14A PRESS RELEASE 18 Jun 2014 811-21449
DEFA14A Open DEFA14A document View SEC filing for DEFA14A PRESS RELEASE 18 Jun 2014 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A CLOSED-END PROXY 16 Jun 2014 05 Aug 2014 811-21449
PRE 14A Open PRE 14A document View SEC filing for PRE 14A CLOSED-END PROXY 16 May 2014 16 May 2014 811-21449
DEFA14A Open DEFA14A document View SEC filing for DEFA14A PRESS RELEASE 01 May 2014 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN ENERGY MLP TOTAL RETURN FUND 16 Apr 2014 333-187032
497 Open 497 document View SEC filing for 497 NUVEEN ENERGY MLP TOTAL RETURN FUND 15 Apr 2014 333-187032
N-Q Open N-Q document View SEC filing for N-Q NMZ 01 Apr 2014 31 Jan 2014 811-21449
4 Open 4 document View SEC filing for 4 11 Mar 2014 10 Mar 2014
486BPOS Open 486BPOS document View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 05 Feb 2014 811-21449,333-187032
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDED SCHEDULE 13G 03 Feb 2014 005-84378
4 Open 4 document View SEC filing for 4 08 Jan 2014 06 Jan 2014
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 06 Jan 2014 31 Oct 2013 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 30 Dec 2013 31 Oct 2013 811-21449
40-APP Open 40-APP document View SEC filing for 40-APP EXEMPTION APPLICATION 27 Dec 2013 812-14258-28
4 Open 4 document View SEC filing for 4 18 Dec 2013 17 Dec 2013
4 Open 4 document View SEC filing for 4 28 Oct 2013 24 Oct 2013
4 Open 4 document View SEC filing for 4 23 Oct 2013 21 Oct 2013
40-APP Open 40-APP document View SEC filing for 40-APP EXEMPTION APPLICATION 16 Oct 2013 812-14223-39
N-Q Open N-Q document View SEC filing for N-Q NMZ 27 Sep 2013 31 Jul 2013 811-21449
4 Open 4 document View SEC filing for 4 18 Sep 2013 26 Aug 2013
3 Open 3 document View SEC filing for 3 10 Sep 2013 01 Sep 2013
3 Open 3 document View SEC filing for 3 10 Sep 2013 01 Sep 2013
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 19 Aug 2013 30 Jun 2013 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 09 Aug 2013 811-21449
3 Open 3 document View SEC filing for 3 26 Jul 2013 17 Jul 2013
4 Open 4 document View SEC filing for 4 FORM 4 17 Jul 2013 15 Jul 2013
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13D/A 17 Jul 2013 005-84378
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 08 Jul 2013 30 Apr 2013 811-21449
4 Open 4 document View SEC filing for 4 05 Jul 2013 03 Jul 2013
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 01 Jul 2013 30 Apr 2013 811-21449
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 2 17 May 2013
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 17 May 2013 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 25 Apr 2013 16 May 2013 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 24 Apr 2013 333-186450
EFFECT Open EFFECT document View SEC filing for EFFECT 19 Apr 2013 333-186450
CORRESP Open CORRESP document View SEC filing for CORRESP 19 Apr 2013
CORRESP Open CORRESP document View SEC filing for CORRESP 18 Apr 2013
CORRESP Open CORRESP document View SEC filing for CORRESP 10 Apr 2013
N-Q Open N-Q document View SEC filing for N-Q NMZ 01 Apr 2013 31 Jan 2013 811-21449
PRE 14A Open PRE 14A document View SEC filing for PRE 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 27 Mar 2013 26 Mar 2013 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 26 Mar 2013 333-187032
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Mar 2013
N-14 8C/A Open N-14 8C/A document View SEC filing for N-14 8C/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 21 Mar 2013 333-186450
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Mar 2013
POS EX Open POS EX document View SEC filing for POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 11 Mar 2013 333-187032
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 07 Mar 2013 333-187032
EFFECT Open EFFECT document View SEC filing for EFFECT 06 Mar 2013 333-187032
N-2 Open N-2 document View SEC filing for N-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Mar 2013 811-21449,333-187032
EFFECT Open EFFECT document View SEC filing for EFFECT 28 Feb 2013 333-161462
497J Open 497J document View SEC filing for 497J NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Feb 2013 333-161462
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Feb 2013
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Feb 2013
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Feb 2013
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 27 Feb 2013 811-21449,333-161462
N-14 8C Open N-14 8C document View SEC filing for N-14 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Feb 2013 333-186450
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDED SCHEDULE 13G 04 Feb 2013 005-84378
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 18 Jan 2013 811-21449,333-161462
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 07 Jan 2013 31 Oct 2012 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 02 Jan 2013 333-161462
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 31 Dec 2012 31 Oct 2012 811-21449
SC 13D Open SC 13D document View SEC filing for SC 13D NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13D 28 Dec 2012 005-84378
3 Open 3 document View SEC filing for 3 FORM 3 28 Dec 2012 21 Dec 2012
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 2 18 Dec 2012
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 18 Dec 2012 811-21449
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 2 14 Dec 2012
425 Open 425 document View SEC filing for 425 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 14 Dec 2012 811-21449
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Dec 2012
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 09 Nov 2012 005-84378
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 28 Sep 2012 31 Jul 2012 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 Aug 2012 30 Jun 2012 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 16 Aug 2012 811-21449
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 09 Jul 2012 30 Apr 2012 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 02 Jul 2012 31 Jul 2012 811-21449
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 29 Jun 2012 30 Apr 2012 811-21449
POS EX Open POS EX document View SEC filing for POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 04 Jun 2012 333-161462
497J Open 497J document View SEC filing for 497J NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 29 May 2012 333-161462
EFFECT Open EFFECT document View SEC filing for EFFECT 25 May 2012 333-161462
CORRESP Open CORRESP document View SEC filing for CORRESP 25 May 2012
CORRESP Open CORRESP document View SEC filing for CORRESP 24 May 2012
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 24 May 2012 811-21449,333-161462
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Apr 2012
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 11 Apr 2012 811-21449,333-161462
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 30 Mar 2012 31 Jan 2012 811-21449
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 28 Feb 2012 811-21449,333-161462
CORRESP Open CORRESP document View SEC filing for CORRESP 10 Feb 2012
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 10 Feb 2012 811-21449,333-161462
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 06 Jan 2012 31 Oct 2011 811-21449
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 30 Dec 2011 31 Oct 2011 811-21449
40-17G Open 40-17G document View SEC filing for 40-17G 40-17G 19 Dec 2011 811-21449
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 29 Sep 2011 31 Jul 2011 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 26 Aug 2011 30 Jun 2011 811-21449
3 Open 3 document View SEC filing for 3 25 Aug 2011 17 Aug 2011
POS 8C Open POS 8C document View SEC filing for POS 8C NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 10 Aug 2011 811-21449,333-161462
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 29 Jul 2011 811-21449
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Jul 2011 05 May 2011
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND SC 13G/A 6-30-2011 11 Jul 2011 005-84378
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 08 Jul 2011 30 Apr 2011 811-21449
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 29 Jun 2011 30 Apr 2011 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND-SCH13G-A#7 27 Jun 2011 005-84378
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 22 Jun 2011 25 Jul 2011 811-21449
4 Open 4 document View SEC filing for 4 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FD 21 Jun 2011 17 Jun 2011
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 21 Jun 2011 17 Jun 2011
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 03 Jun 2011 25 Jul 2011 811-21449
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 03 Jun 2011 811-21449
N-23C-2 Open N-23C-2 document View SEC filing for N-23C-2 RULE 23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES 26 May 2011 26 May 2011 817-01126
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 01 Apr 2011 31 Jan 2011 811-21449
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 25 Mar 2011 333-161462
486BPOS Open 486BPOS document View SEC filing for 486BPOS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 21 Mar 2011 811-21449,333-161462
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 04 Mar 2011 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT NO. 6 14 Feb 2011 005-84378
3 Open 3 document View SEC filing for 3 12 Jan 2011 03 Jan 2011
3 Open 3 document View SEC filing for 3 12 Jan 2011 03 Jan 2011
3 Open 3 document View SEC filing for 3 11 Jan 2011 03 Jan 2011
3 Open 3 document View SEC filing for 3 11 Jan 2011 03 Jan 2011
3 Open 3 document View SEC filing for 3 11 Jan 2011 03 Jan 2011
N-CSR Open N-CSR document View SEC filing for N-CSR NMZ 07 Jan 2011 31 Oct 2010 811-21449
SC 13G Open SC 13G document View SEC filing for SC 13G 07 Jan 2011 005-84378
NSAR-B Open NSAR-B document View SEC filing for NSAR-B 30 Dec 2010 31 Oct 2010 811-21449
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 16 Dec 2010 811-21449
NO ACT Open NO ACT document View SEC filing for NO ACT AUTO-GENERATED PAPER DOCUMENT 09 Nov 2010 03 Nov 2010 811-21449
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 04 Nov 2010 811-21449
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 29 Sep 2010 31 Jul 2010 811-21449
N-PX Open N-PX document View SEC filing for N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 26 Aug 2010 30 Jun 2010 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13GA5 06 Aug 2010 005-84378
3 Open 3 document View SEC filing for 3 05 Aug 2010 27 Jul 2010
SC 13D Open SC 13D document View SEC filing for SC 13D FILING 05 Aug 2010 005-84378
N-CSRS Open N-CSRS document View SEC filing for N-CSRS NMZ 08 Jul 2010 30 Apr 2010 811-21449
NSAR-A Open NSAR-A document View SEC filing for NSAR-A 30 Jun 2010 30 Apr 2010 811-21449
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 18 Jun 2010 27 Jul 2010 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 13GA4 10 Jun 2010 005-84378
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 04 Jun 2010 811-21449
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 25 May 2010 27 Jul 2010 811-21449
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 06 May 2010 811-21449
CORRESP Open CORRESP document View SEC filing for CORRESP 22 Apr 2010
N-Q Open N-Q document View SEC filing for N-Q NMZ_NQ 01 Apr 2010 31 Jan 2010 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 12 Mar 2010 005-84378
40-17G/A Open 40-17G/A document View SEC filing for 40-17G/A 40-17G/A 09 Mar 2010 811-21449
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 03 Feb 2010 005-84378
497 Open 497 document View SEC filing for 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 01 Feb 2010 333-161462
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Jan 2010 333-161462
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 25 Jan 2010 811-21449,333-161462
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT 20 Jan 2010 005-84378
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 14 Jan 2010 811-21449,333-161462
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Jan 2010
N-2/A Open N-2/A document View SEC filing for N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 11 Jan 2010 811-21449,333-161462
N-CSR Open N-CSR document View SEC filing for N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND 06 Jan 2010 31 Oct 2009 811-21449

About this filer

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND files with the SEC under CIK 0001266585. This page aggregates EDGAR filings and related ownership activity.

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FAQ

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A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
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