Lobbying Pressure

## What this measures

The number of Lobbying Disclosure Act filings (registrations, quarterly activity reports, amendments and terminations) posted to LDA.gov in the trailing 30 days, across every registrant and client.

## Why it matters

Lobbying is the input side of regulation. Filing intensity rises when more organizations engage on more issues, which tends to come before rules, enforcement and legislation. It is the leading indicator in the Regulatory Shock schema.

## How to read it

The series has a strong calendar rhythm. Quarterly reports are due 20 days after each quarter ends, so it jumps to roughly 20,000–25,000 in late January, April, July and October and falls to 1,000–3,000 in between. Compare a reading with the same point of the cycle a year earlier, or read it as a z-score against its own trailing year, which is how the Regulatory Shock schema uses it.

## What it does not say

It counts filings, not dollars, and not which issues. One lobbying firm with many clients files many reports. Amendments count as filings. For dollars and issues on the S&P 500, see influence.lobbying_spend.sp500 and the influence.lobbying_share.* series.

## Source

U.S. Senate Office of Public Records, LDA.gov REST API (https://lda.gov/api/v1), daily filing counts by posting date. Public record; the LDA.gov terms place no controls on end use. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov. Until 2026-09-25 this slug was computed from Quiver Quantitative's copy, which covered public-company clients only (about one seventh of the level; r = 0.999 over the 292 overlapping days); the whole history was rebuilt from LDA.gov.