EDGAR 文件抓取
EDGAR 文件抓取：从 SEC EDGAR 批量抓取上市公司年报（10-K）和季报（10-Q）文件，支持按季度增量更新与本地缓存，适用于美股基本面分析和量化研究数据获取。
晶体简介
Constraints
Evidence Quality
Medium confidence — review before critical use
31 条不可违反的约束
WHENWhen requesting data from SEC EDGAR
ACTIONinclude a valid User-Agent header identifying the requester with contact information
CONSEQUENCESEC EDGAR will reject requests without valid User-Agent identification with 403 Forbidden errors, preventing any data downloads
WHENWhen constructing SEC EDGAR index URLs
ACTIONuse the official SEC EDGAR full-index URL pattern: https://www.sec.gov/Archives/edgar/full-index/{year}/QTR{quarter}/master.zip
CONSEQUENCEUsing incorrect URL patterns will result in 404 errors and complete download failure
WHENWhen downloading SEC EDGAR filings via HTTP requests
ACTIONdeclare a valid User-Agent header containing contact information (name and email)
CONSEQUENCESEC EDGAR will block or throttle requests without a valid User-Agent header, causing downloads to fail with HTTP 403 errors
常见问题
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