Market Observation Post System
Market Observation Post System (MOPS) is the electronic corporate disclosure platform operated by the Taiwan Stock Exchange (TWSE) for the publication and dissemination of financial, corporate, and regulatory information relating to companies listed on Taiwan's securities markets. Developed to improve transparency and investor access to corporate disclosures, MOPS serves as the principal public repository for mandatory filings submitted by listed companies, over-the-counter (OTC) companies, and emerging stock issuers in Taiwan. The system provides investors, regulators, researchers, and the public with timely access to financial statements, corporate announcements, material information disclosures, governance reports, and other filings required under Taiwan's securities regulations.
MOPS is jointly administered by the Taiwan Stock Exchange and the Taipei Exchange (TPEx) under the supervision of the Financial Supervisory Commission (FSC). The platform publishes a broad range of statutory disclosures, including annual and quarterly financial reports, monthly revenue reports, material information announcements, shareholder meeting notices, corporate governance reports, sustainability disclosures, shareholding information, capital changes, merger and acquisition announcements, prospectuses, and other filings required under the Securities and Exchange Act. The system also supports the electronic submission of financial statements using XBRL, enabling standardized, machine-readable reporting and facilitating financial analysis, regulatory oversight, and data integration.
The Market Observation Post System was introduced as part of Taiwan's efforts to modernize securities disclosure and strengthen capital market transparency through electronic reporting. Over time, the platform has been expanded to include multilingual access, enhanced search capabilities, historical filing archives, corporate governance information, ESG-related disclosures, and open data services that support automated retrieval of corporate information. By providing centralized, real-time access to corporate disclosures, MOPS has become an essential resource for investors, financial analysts, listed companies, academic researchers, and regulatory authorities monitoring Taiwan's capital markets.
MOPS operates as a core component of Taiwan's securities disclosure framework and supports the regulatory responsibilities of the Financial Supervisory Commission, the Taiwan Stock Exchange, the Taipei Exchange, and other capital market institutions. It is widely integrated into financial information services, investment research platforms, regulatory compliance systems, and corporate intelligence tools. Through its electronic disclosure infrastructure, MOPS has significantly enhanced the transparency, accessibility, and standardization of corporate reporting in Taiwan, serving as one of the country's principal public repositories of listed company information.
History
The Market Observation Post System was established by the Taiwan Stock Exchange to replace paper-based disclosure practices with an electronic reporting system capable of providing timely public access to corporate information. As Taiwan's securities markets expanded, MOPS evolved to support broader categories of disclosures, standardized electronic reporting, and internet-based public access.
Subsequent enhancements introduced XBRL reporting, improved search functionality, multilingual interfaces, historical archives, corporate governance reporting, and sustainability-related disclosures, further strengthening transparency within Taiwan's capital markets.
Major disclosure types
Among the principal disclosures available through MOPS are:
- Annual financial reports
- Quarterly financial reports
- Monthly revenue reports
- Material information announcements
- Shareholder meeting notices
- Corporate governance reports
- Sustainability and ESG reports
- Prospectuses
- Capital increase and reduction announcements
- Merger and acquisition disclosures
- Insider shareholding reports
- Dividend announcements
Applications
MOPS is widely used for:
- Corporate disclosure
- Securities regulation
- Financial reporting
- Investment research
- Corporate governance
- Regulatory compliance
- Due diligence
- Market surveillance
- Academic research
- Financial journalism
- Business intelligence
- Financial data analytics