# Research market explanations

Curated source collection, not a live research digest.

Source documentation checked: 2026-10-09 (UTC). Directory digest: `d6020b185c1948e1d2ea6265edcb6d00574ca822925016219babede247d38cdd`.

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## Research market explanations

Research public filings and economic releases that may explain a market event.

Decision question: Which public events could explain the observed market activity, and which explanations remain unsupported?

When to revisit: After a supplied market event or relevant filing or economic release, with event time and data vintage preserved.

Agent research task: Build a dated source trail for the supplied event. Keep alternative explanations and missing market data visible. Do not infer trader identity, confirmed rolls or profitable signals from public context alone.

Compare:

- issuer or economic series
- event and publication timestamps
- filing amendment or data vintage
- units and adjustment basis
- observed fact versus explanation

Sources:

- [SEC EDGAR APIs](https://www.sec.gov/search-filings/edgar-application-programming-interfaces): Company submissions and structured filing data for source-based financial research. Follow SEC fair-access guidance and identify the client as required. This is not a live market-data feed. Retain filing accession, form, period and amendment status. A filing does not identify the intent behind an options trade.
- [Federal Reserve Bank of St. Louis FRED API](https://fred.stlouisfed.org/docs/api/fred/): Economic series, releases and vintage information for macroeconomic context. The API requires its documented account credentials and terms. No credential is included here. Retain units, seasonal adjustment, observation date, release date and vintage. Some series have third-party restrictions.

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