Research
Original data
Studies built from primary-source filings rather than from anyone else's feed. Each one publishes its method, its limits and the dataset behind it, so the arithmetic can be checked and the numbers reused without asking us.
Updated 2026-08-27
Notice lag in House stock disclosures
How long House stock trades actually take to reach the public record, measured from the filings themselves using the notification date that no tracker carries. Free to reuse, with the full dataset.