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CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND — N-CEN Filings

8 N-CEN filings on record

This page lists all N-CEN filings submitted to the SEC by CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND (CHI), sorted by most recent first. Each row links to the full filing on EdgarLookup. CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND has filed 8 N-CEN documents with the SEC since 2002. To view all SEC filings by CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND, see the full filings list.

Overview All Filings Financials Insiders
All 25 3 3/A 4 4/A 40-17G 40-17G/A 40-33 40-6C 40-6C/A 40-APP 40-APP/A 424B3 424B5 486BPOS 497 5 8-A12B 8-K APP NTC APP ORDR CERTNAS CERTNYS CORRESP DEF 14A EFFECT N-2 N-2 POSASR N-2/A N-23C-2 N-2ASR N-30D N-8A N-CEN N-CEN/A N-CSR N-CSR/A N-CSRS N-PX N-Q NO ACT NPORT-EX NPORT-P NSAR-A NSAR-A/A NSAR-B NSAR-B/A POS 8C POS EX SC 13D SC 13G SC 13G/A UPLOAD
Form Description Accession Number Filed Period
N-CEN 0001410368-26-000869 Jan 13, 2026 Oct 31, 2025
N-CEN 0001752724-25-001487 Jan 10, 2025 Oct 31, 2024
N-CEN 0001145549-24-001977 Jan 16, 2024 Oct 31, 2023
N-CEN 0001145549-23-001477 Jan 17, 2023 Oct 31, 2022
N-CEN 0001145549-22-001518 Jan 13, 2022 Oct 31, 2021
N-CEN 0001145549-21-001032 Jan 12, 2021 Oct 31, 2020
N-CEN 0001145549-20-001185 Jan 13, 2020 Oct 31, 2019
N-CEN 0001145549-19-001381 Jan 14, 2019 Oct 31, 2018