GROUP ONE TRADING LLC

Position in AXTI — Axt Inc

CIK 932540 CHICAGO, IL

Position in AXTI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$12,110,521

+$10,007,846 QoQ

Shares Held

168,015

+355.3% QoQ

Ownership

0.256%

of shares outstanding

% of Portfolio

0.41%

of 13F equity value

Holder Rank

#40

of 257 holders

Holding Since

Jun 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $52,564,758 across 15 Semiconductor Equipment & Materials names. AXTI ranks #2 (23.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ACMR	ACM Research, Inc.	157,056	$19,928,835
2	AXTI	Axt Inc This page	168,015	$12,110,521
3	AMKR	Amkor Technology, Inc.	129,334	$11,152,470
4	TER	Teradyne, Inc	4,595	$2,223,244
5	KLAC	Kla Corp	6,218	$1,876,032
6	AEHR	Aehr Test Systems	17,271	$1,659,052
7	Q	Qnity Electronics, Inc.	6,699	$1,094,013
8	ATOM	Atomera Inc	73,496	$640,150

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$12,110,521	168,015	+355.3%	Shares	Sole	2026-08-14
2026-03-31	$2,102,675	36,902	-46.6%	Shares	Sole	2026-05-13
2025-12-31	$1,130,896	69,168	+59.5%	Shares	Sole	2026-02-12
2025-09-30	$194,699	43,363	+1503.1%	Shares	Sole	2025-11-12
2025-06-30	$5,653	2,705	0.0%	Shares	Sole	2025-08-14
2025-03-31	$3,814	2,705	-28.3%	Shares	Sole	2025-05-14
2024-12-31	$8,187	3,773	0.0%	Shares	Sole	2025-05-14
2024-09-30	$9,130	3,773	+101.5%	Shares	Sole	2024-11-14
2023-12-31	$4,492	1,872	+396.6%	Shares	Sole	2024-02-14
2023-03-31	$1,500	377	-87.3%	Shares	Sole	2023-05-12
2022-12-31	$13,039	2,977	+125.2%	Shares	Sole	2023-02-09
2022-09-30	$8,857	1,322	+208.9%	Shares	Sole	2022-11-09
2022-03-31	$3,004	428	-97.7%	Shares	Sole	2022-05-12
2020-09-30	$115,496	18,872	+150.2%	Shares	Sole	2020-11-12
2020-06-30	$35,909	7,544	—	Shares	Sole	2020-08-13
No filing history on record for this holder in this stock.