What members of Congress are estimated to be holding, rebuilt from the trades they disclose: net purchases at the midpoints of the amount brackets in their filings, grouped by the filers most worth watching.
What an estimated portfolio is
A filing never gives a share count or a price — it gives a bracket, such as “$1,001 – $15,000”. We take the midpoint of every bracket a politician disclosed buying, subtract the midpoint of every one they disclosed selling, and keep the tickers where the difference is still positive. That figure is a cost basis at the sizes they reported: not a market value, not a share count and not a verified holding. Anything bought before the disclosure record begins is invisible to it, a sale of part of a position looks the same as a sale of all of it, and everything arrives weeks after the trade, because that is how long the law gives them to file.