Company · OIA · CIK 835333

Invesco Municipal Income Opportunities Trust (OIA) SEC filings and CIK.

OIA’s SEC Central Index Key (CIK) is 0000835333, or 835333 without leading zeros. The SEC’s ticker file lists it as Invesco Municipal Income Opportunities Trust.

Ticker: OIA
CIK: 0000835333
Other tickers: None
Insider transactions, Q3 2026: None loaded

Recent filings we observed

From our record of EDGAR’s latest-filings feed and sampled daily indexes. Not a complete filing history; use the filings API for that.
Filed	Form	Accession
2026-11-06	N-CSRS	0001193125-26-450895
2026-10-30	NPORT-P	0000835333-26-000030

Get OIA SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=835333&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/835333" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/835333?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Invesco Municipal Income Opportunities Trust on SEC.gov

Questions

What is OIA’s CIK number?

OIA’s SEC Central Index Key (CIK) is 0000835333, or 835333 without leading zeros. The SEC’s ticker file lists it as Invesco Municipal Income Opportunities Trust.

How do I find Invesco Municipal Income Opportunities Trust’s 10-K?

Request /api/v1/filings?cik=835333&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/oia.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.