Korea Stock Market Daily Dataset: Settled Closes, DART Filings with Receipt Time, and Quarterly Earnings (KOSPI/KOSDAQ/KONEX)

This deposit is a frozen snapshot (quote basis date 2026-09-02) of the daily market data published for listed companies on the Korean stock exchanges (KOSPI, KOSDAQ, KONEX). Contents Settled closing prices (T+1) for 2,791 listed stocks, with market capitalization and trading value. DART regulatory filings, including receipt timestamps at minute resolution (HH:MM), which allows separating intraday filings from after-hours filings. The official OpenDART API provides only the filing date (YYYYMMDD); the receipt time is collected separately for this dataset. Quarterly earnings as reported by companies (revenue, operating profit, net income) with year-over-year changes. Rankings derived from the above (growth, quiet earnings, 52-week extremes). Sources Financial Services Commission open data portal (Republic of Korea) Financial Supervisory Service, DART electronic disclosure system Important notes Prices are settled closing prices (T+1), not real-time quotes. Missing values are normalized to null, never to zero. Each published snapshot passes accounting identity checks (e.g. market cap = close x shares outstanding); publication is halted if a check fails. This dataset is a record of what was disclosed and traded. It contains no investment advice, recommendations, or forecasts. Live version and documentation https://aikstockdata.com/datasets API documentation: https://aikstockdata.com/en/api MCP server (no API key): https://aikstockdata.com/en/mcp The live files are updated every trading day and require no signup or API key. Terms of use for the live site from 2026-09-14 (aiksd-public-1.1, https://aikstockdata.com/licenses/aiksd-public-1.1.txt): Non-commercial use with attribution; commercial redistribution is not permitted. Market prices are also subject to the Financial Services Commission source licence (KOGL Type 4: attribution, non-commercial, no derivatives). Snapshot This deposit is a frozen snapshot. The quote basis date is 2026-09-02 and is included in each file name and in the metadata fields of the JSON files (quote_basis_date, snapshot_id). Coverage is 2,791 of 2,798 listed stocks; the 7 excluded received no quote on that trading day (trading halt, liquidation trading, newly listed not yet reflected, delisted, or code mismatch).