Net Worth Index

Methodology

How Net Worth Index collects, normalizes, and presents public-official trading disclosures.

What we track

Net Worth Index tracks publicly disclosed securities transactions by members of Congress and other public officials where source data is available. We focus on trade date, filed date, asset name, ticker, transaction type, ownership label, and reported value range.

How the data is sourced

Our system ingests recent public disclosure data from source-linked feeds and pages, converts those records into structured rows, and stores the resulting trade entries in a normalized format. When the same transaction appears multiple times during repeated source fetches, the importer applies a trade signature check so only one canonical record is published.

Trade date versus filed date

The trade date is when the transaction occurred. The filed date is when the public disclosure surfaced in the source material. We show both dates separately because a delayed disclosure can affect how readers interpret the significance of a trade.

Dollar values and limitations

Most disclosures do not provide exact values. They provide ranges. Net Worth Index preserves those ranges rather than inventing precision that the filing does not support.

Corrections and updates

If a source changes, if a disclosure is amended, or if a parsing issue is corrected, we update the corresponding record and preserve the newest reliable version.

What we do not claim

Net Worth Index does not claim that a trade is illegal, improper, or evidence of intent. We organize public records and give users a clearer interface for reviewing them.