GROUP ONE TRADING LLC

Position in STLD — Steel Dynamics Inc

CIK 932540 CHICAGO, IL

Position in STLD

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

Position Value

$2,753,640

+$351,009 QoQ

Shares Held

15,298

+7.9% QoQ

Ownership

0.011%

of shares outstanding

% of Portfolio

0.11%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $5,865,427 across 6 Steel names. STLD ranks #1 (46.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	STLD	Steel Dynamics Inc This page	15,298	$2,753,640
2	CLF	Cleveland-Cliffs Inc.	320,309	$2,706,611
3	ASTL	Algoma Steel Group Inc.	85,656	$353,759
4	GGB	Gerdau S.A.	7,584	$27,378
5	TX	Ternium S.A.	485	$19,472
6	MSB	Mesabi Trust	145	$4,567

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,753,640	15,298	+7.9%	Shares	Sole	2026-05-13
2025-12-31	$2,402,631	14,179	-64.7%	Shares	Sole	2026-02-12
2022-09-30	$2,847,365	40,132	+254.6%	Shares	Sole	2022-11-09
2022-03-31	$944,260	11,318	-85.7%	Shares	Sole	2022-05-12
2021-12-31	$4,906,199	79,043	+14.9%	Shares	Sole	2022-02-11
2021-09-30	$4,021,786	68,772	+64.6%	Shares	Sole	2021-11-12
2021-06-30	$2,490,743	41,791	+31.6%	Shares	Sole	2021-08-10
2021-03-31	$1,612,289	31,763	+170.2%	Shares	Sole	2021-05-12
2020-12-31	$433,443	11,756	-25.7%	Shares	Sole	2021-02-10
2020-09-30	$452,897	15,819	-37.3%	Shares	Sole	2020-11-12
2020-06-30	$658,485	25,239	+2.1%	Shares	Sole	2020-08-13
2020-03-31	$557,233	24,722	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.