EDGAR
The SEC's Electronic Data Gathering, Analysis, and Retrieval system — the primary public source of US securities filings.
Definition
EDGAR is the SEC's official filing system, free to access and used by public companies to submit registration statements, periodic reports, and event-driven filings. The full-text index updates throughout each business day; the 'getcurrent' atom feed exposes the most recent filings within seconds of acceptance.
Hitting EDGAR directly works for one-off lookups but breaks down for systematic monitoring: the API is rate-limited (10 req/s), the data is unparsed, and there's no indexing across companies. Wrappers like FilingFirehose handle the parsing, cross-company indexing, and structured field extraction.
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