Sources
Data sources & credits
Data on U.S. and Korean stocks, crypto assets, and Korean laws and regulations can be traced back to its source data or connected provider. Original-source links are provided on each filing and earnings item via the Source ↗ link.
This page matters because the product is built to let readers move from summary back to source. If a claim cannot be traced to a filing, official dataset, or clearly labeled provider, it should not stay in the product.
Primary filings and issuer data
SEC EDGAR, DART, and FSC/KRX are the first layer. These are the pages we rely on for filings, structured financials, listed-security metadata, and company basics.
Market and holdings coverage
KRX, KOFIA, Yahoo Finance, and public institutional datasets provide the market context around prices, funds, and 13F-based ownership changes.
Translation and summarization stack
Google Gemini is used for bilingual translation and analysis support, while the product keeps source links visible so users can verify the original material directly.
- Financial Services Commission — Corporate Basic InformationBasic information and company overviews for Korean listed companieshttps://www.fsc.go.kr/in060301
- DART Electronic Disclosure SystemFilings and full-text business reports of Korean companieshttps://dart.fss.or.kr/
- KRX (Korea Exchange)Korean listed securities, prices, and market datahttp://data.krx.co.kr/
- Korea Financial Investment AssociationKorean fund and asset-management statisticshttps://dis.kofia.or.kr/
- SEC EDGAR SubmissionsLatest list of filings by companyhttps://data.sec.gov/submissions/
- SEC EDGAR Company Facts (XBRL)Financial line-item datahttps://data.sec.gov/api/xbrl/
- SEC EDGAR 13F-HRInstitutional 13F holdings datahttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=13F-HR
- Company IR materialsEarnings releases / guidance / transcriptshttps://www.sec.gov/cgi-bin/browse-edgar
- Public analyst-action aggregationResearch-firm and price-target changeshttps://www.sec.gov/
- CryptoQuantUsed as a source for crypto-asset price and on-chain datahttps://cryptoquant.com/
- API FuseUsed as an API gateway for searching and looking up Korean laws and regulationshttps://platform.apifuse.com/docs
- lightweight-chartsUsed to render charts; TradingView's open-source charting libraryhttps://github.com/tradingview/lightweight-charts
- FREDSource of U.S. macroeconomic time-series data (policy rate / CPI / PPI / JOLTS)https://fred.stlouisfed.org/
- Yahoo FinanceSource of U.S. and Korean quotes and profiles, and English-language news (including KOSPI stocks)https://finance.yahoo.com/
- Google GeminiUsed for Korean↔English translation of company descriptions and analysis (gemini-2.5-flash)https://ai.google.dev/
Financial analysis & AI insight quality assurance
The company financial analysis and AI insights in this service go through a three-stage verification framework for high reliability. First, through source-data traceability, we use the originals from DART and SEC EDGAR rather than processed secondary materials, and we require original-filing links so users can cross-check them directly. Second, we apply a dedicated AI quality-assurance (QA) layer that evaluates whether each generated briefing meets internal standards, and when it falls short, we continuously improve the model through retries and bad-case logging. Third, through macro-indicator cross-referencing, we combine authoritative market data such as FRED and KRX to prevent bias in single-company analysis.
We do not store or redistribute the full text of external reports without authorization. Originals are provided as source links, and translations of company descriptions and analysis in this service (English→Korean for U.S. companies, Korean→English for Korean companies) are processed with Google gemini-2.5-flash and are labeled with the relevant sources.
Voice generation is processed with active use of OpenAI Privacy Filter and Codex. The AI models applied may differ depending on your plan.
Related pages
Use these public pages to move from source transparency into actual market, report, and product context.
Product philosophy and what kind of investor workflow the site is built for.
Daily market context pages linked to indices, bonds, and commodities.
Periodic macro report summaries backed by public source policy.
Public law and regulation search connected through the source stack on this page.