Analysis · June 2026

The Overlap Index

Committee × sector — where lawmakers trade what they oversee

Every cell below counts the disclosed stock trades made by members of one congressional committee in one market sector. The squares ringed in gold and marked ▦ are jurisdictional overlaps — cases where a committee oversees the very sector its members were trading in.

Across these 14 committees and 10 sectors, members disclosed 23,472 equity trades. 1,526 of them — about 7% — fell in a sector the trading member's own committee oversees. Members of House Financial Services made 438 disclosed trades in Financial Services — a sector it oversees.

This is committee membership measured against disclosed sector — not proof of wrongdoing. A member may sit on a committee for reasons unrelated to a given trade, trades are often executed by a spouse or a blind manager, and the data lags the trade by weeks. Read these as questions worth asking, not findings. See our methodology and data dictionary.

Fewer trades More · ▦ committee oversees this sector

Disclosed congressional stock trades by committee (rows) and market sector (columns). Cells marked with a square denote sectors the committee oversees.
Committee	Technology	Financial Services	Healthcare	Consumer Cyclical	Industrials	Communication Services	Consumer Defensive	Energy	Basic Materials	Real Estate
House Financial Services	1,025	438	513	470	376	264	222	99	86	70
House Permanent Select Intelligence	765	328	386	316	336	196	138	73	58	23
House Armed Services	421	182	258	265	300	117	91	92	39	65
House Appropriations	317	255	207	242	227	91	148	82	76	75
House Small Business	426	142	299	182	221	103	94	91	39	55
House Foreign Affairs	388	197	209	253	159	113	96	48	53	27
House Transportation and Infrastructure	365	164	224	152	198	109	97	72	52	32
Senate Veterans' Affairs	403	199	162	147	117	98	90	53	150	10
House Education and Workforce	218	170	153	100	152	66	153	192	81	68
House Agriculture	347	144	198	178	184	95	90	58	30	29
Senate Agriculture	377	202	154	116	121	68	91	51	141	13
House Ways and Means	263	152	176	170	151	51	94	107	54	15
Senate Armed Services	332	176	138	119	108	74	80	45	153	15
House Oversight and Government Reform	211	141	66	140	106	94	106	179	46	49

How to read this

Rows are committees, columns are sectors. Each cell is the number of disclosed equity trades by members of that committee in that sector. A member who sits on three committees counts toward all three rows.
Darker gold means more trades. The scale is relative to the trades shown here, so a faint cell is light activity and a deep-gold cell is heavy activity.
The ▦ marker and gold ring flag a jurisdictional overlap — the committee oversees that sector. Those are the cells journalists tend to cite.
Blank cells mean no disclosed equity trades in that pairing within the dataset.

Rows show the 14 most active committees; columns show the 10 most-traded sectors. Non-equity holdings (funds, bonds, real estate without a sector) are excluded, and executive-branch filers carry no committee assignments, so this view is congressional only.

See how every flag is defined — and verify it against the original filings.

Read the methodology Data dictionary