Analysis · October 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 26,125 equity trades. 1,600 of them — about 6% — fell in a sector the trading member's own committee oversees. Members of House Financial Services made 448 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	1,072	448	528	481	393	277	225	102	89	72
House Permanent Select Intelligence	778	333	387	323	338	203	140	74	59	25
House Armed Services	593	275	372	344	409	171	135	93	72	101
House Small Business	522	175	348	199	261	130	108	92	50	70
House Foreign Affairs	450	230	249	274	204	123	111	51	58	34
House Appropriations	334	259	212	249	233	94	153	85	77	75
House Oversight and Government Reform	306	205	132	203	179	125	136	182	69	71
House Agriculture	415	159	217	216	243	127	96	62	36	29
House Transportation and Infrastructure	394	171	233	161	199	120	101	75	52	32
Senate Veterans' Affairs	410	207	198	151	124	102	95	54	152	10
House Education and Workforce	244	176	161	104	155	73	154	196	83	72
House Ways and Means	277	168	203	194	181	56	114	122	60	15
Senate Agriculture	385	213	160	124	126	72	96	53	144	13
House Homeland Security	272	173	145	212	137	93	112	34	42	40

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