Analysis · July 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 24,331 equity trades. 1,476 of them — about 6% — fell in a sector the trading member's own committee oversees. Members of House Financial Services made 441 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	1,032	441	518	477	378	267	224	100	87	71
House Permanent Select Intelligence	766	332	387	321	336	201	139	74	59	24
House Armed Services	472	231	290	288	343	131	103	93	50	75
House Appropriations	331	258	211	247	233	92	150	83	77	75
House Small Business	452	152	309	186	230	109	98	92	39	57
House Foreign Affairs	411	217	229	266	177	118	99	49	55	28
House Transportation and Infrastructure	369	165	228	155	198	111	98	73	52	32
Senate Veterans' Affairs	406	201	165	149	120	100	93	53	152	10
House Agriculture	365	146	203	183	202	102	93	60	31	29
House Education and Workforce	221	172	153	101	153	66	153	195	81	70
Senate Agriculture	380	205	157	118	124	70	94	52	143	13
House Oversight and Government Reform	239	180	89	159	141	102	114	182	57	58
House Ways and Means	266	153	178	171	153	52	94	108	55	15
Senate Health	312	173	127	116	117	128	83	42	143	19

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