The Comissão de Valores Mobiliários (CVM) is Brazil’s securities market regulator, responsible for overseeing publicly listed companies, investment funds, and market intermediaries, as well as enforcing disclosure standards and investor protection. Its open data platform provides comprehensive, structured datasets including corporate financial statements (with detailed notes), fund-level data, securities issuances, and regulatory filings, making it a high-quality official source for financial and capital markets analysis. Access the data here: https://dados.cvm.gov.br/