New analysis of STOCK Act filings reveals a clear velocity spike in congressional trading. Five lawmakers have dramatically increased their market activity compared to historical baselines, with velocity z-scores ranging from 2.73 to 7.19. The standout is Rep. Ed Case, a Hawaii Democrat, whose 7.19 z-score reflects trading far outside his norm of 0.21 trades per month. Case has recorded 14 trades against a typical pace that rarely exceeded one every several months.
The pattern extends across party lines and chambers. Rep. April McClain Delaney, a Maryland Democrat, posted a 3.65 z-score with 129 trades in the past 90 days, well above her baseline of 22.96 monthly. Florida Republican Rep. Maria Elvira Salazar registered a 2.98 z-score and 24 trades in the same window against a 2.29 monthly baseline. Sen. David H. McCormick of Pennsylvania, a Republican, showed a 2.8 z-score with 56 trades versus his 7.88 monthly average, while Connecticut Democrat Rep. James A. Himes recorded a 2.73 z-score on just three recent trades that still represent a sharp deviation from his 0.18 monthly baseline. Total trade counts for the group now range from 26 to 408.
The timing of this collective acceleration coincides with periods of market rotation and policy debates in Washington, though the precise drivers remain unclear from the filings alone. These disclosures, required under the STOCK Act, show activity clustered within the last quarter, a notable overlap that our models flag as statistically significant. Such velocity spikes have appeared before during periods of economic uncertainty or ahead of major legislative calendars, prompting closer scrutiny of whether lawmakers are simply reallocating portfolios or responding to broader information flows.
What stands out is the bipartisan nature of the surge. Both House and Senate members, Democrats and Republicans alike, appear to be engaging markets at elevated rates. While past cycles have shown some politicians timing trades near sector-specific hearings, the current data alone does not establish causation. Investors tracking these patterns may find value in monitoring future disclosures for consistency or reversal.
This is data analysis, not financial advice.
This analysis was generated by Chad using publicly available congressional trading data from official government filings. This is not financial advice. All data is sourced from senate.gov, clerk.house.gov, and SEC EDGAR.