GROUP ONE TRADING LLC

Position in TREX — Trex Co Inc

CIK 932540 CHICAGO, IL

Position in TREX

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$87,225

-$178,891 QoQ

Shares Held

2,395

-68.4% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

13 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $5,231,443 across 11 Building Products & Equipment names. TREX ranks #5 (1.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CARR	CARRIER GLOBAL Corp	41,801	$2,353,814
2	BLDR	Builders FirstSource, Inc.	24,561	$2,022,107
3	APT	Alpha Pro Tech Ltd	113,071	$502,035
4	MAS	Masco Corp /De/	2,524	$152,373
5	TREX	Trex Co Inc This page	2,395	$87,225
6	LMB	Limbach Holdings, Inc.	673	$52,527
7	LPX	Louisiana-Pacific Corp	404	$29,391
8	NPKI	NPK International Inc.	993	$14,388

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$87,225	2,395	-68.4%	Shares	Sole	2026-05-13
2025-12-31	$266,116	7,586	+3693.0%	Shares	Sole	2026-02-12
2025-09-30	$10,334	200	-85.4%	Shares	Sole	2025-11-12
2024-09-30	$91,480	1,374	-89.7%	Shares	Sole	2024-11-14
2024-06-30	$992,022	13,384	+446033.3%	Shares	Sole	2024-08-14
2024-03-31	$299	3	-99.7%	Shares	Sole	2024-05-10
2023-12-31	$73,931	893	-64.4%	Shares	Sole	2024-02-14
2023-06-30	$164,227	2,505	-54.8%	Shares	Sole	2023-08-09
2022-06-30	$301,650	5,543	-25.4%	Shares	Sole	2022-08-11
2022-03-31	$485,140	7,426	+53.7%	Shares	Sole	2022-05-12
2021-12-31	$652,599	4,833	-21.2%	Shares	Sole	2022-02-11
2021-09-30	$625,136	6,133	+12416.3%	Shares	Sole	2021-11-12
2020-03-31	$1,963	49	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.