Indexed retrieval
PostgreSQL GIN full-text search and partial HNSW cosine search over pgvector.
Accepted April 30, 2026
About FDRE
FDRE converts SEC filings into auditable retrieval results, structured facts, point-in-time feature data, and reproducible event-study inputs for research teams.
Verified production corpus
Counts were read from the production database on June 13, 2026. The S&P 500 universe uses current constituents and is therefore survivorship-biased.
Engineering evidence
The public service is research infrastructure, not a low-latency trading system or a portfolio backtest.
PostgreSQL GIN full-text search and partial HNSW cosine search over pgvector.
SEC acceptance timestamps, availability boundaries, amendments, and as-of filtering.
Raw Company Facts plus canonical revenue, margins, cash flow, debt, and EPS.
Comparable periods with added, removed, and materially changed passages.
Versioned JSON, CSV, and Parquet issuer-period features with leakage checks.
Ingestion manifests, recovery metrics, data-quality audits, and experiment IDs.
Research workflows
Find section-aware evidence and inspect every retrieval score and citation.
Query typed financial facts with the linked filing and narrative evidence.
Compare the latest filing with its deterministic comparable period.
Scan broad themes while capping evidence per issuer for diversified results.
Export point-in-time features and run benchmark-adjusted statistical tests.
Methodology
The bounded LangGraph retrieval workflow preprocesses the query, routes text, tables, and structured facts, reranks evidence, applies an evidence gate, and verifies every citation before returning an answer.