GROUP ONE TRADING LLC

Position in TER — Teradyne, Inc

CIK 932540 CHICAGO, IL

Position in TER

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

Position Value

$2,223,244

+$1,943,163 QoQ

Shares Held

4,595

+217.6% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#559

of 1,416 holders

Holding Since

Mar 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. TER ranks #4 (4.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ACMR	ACM Research, Inc.	157,056	$19,928,835
2	AXTI	Axt Inc	168,015	$12,110,521
3	AMKR	Amkor Technology, Inc.	129,334	$11,152,470
4	TER	Teradyne, Inc This page	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	$2,223,244	4,595	+217.6%	Shares	Sole	2026-08-14
2025-12-31	$280,081	1,447	-96.9%	Shares	Sole	2026-02-12
2025-09-30	$6,416,088	46,615	+109.9%	Shares	Sole	2025-11-12
2025-03-31	$1,834,133	22,205	+3644.5%	Shares	Sole	2025-05-14
2024-06-30	$87,935	593	-20.5%	Shares	Sole	2024-08-14
2023-12-31	$80,955	746	-90.6%	Shares	Sole	2024-02-14
2023-09-30	$800,666	7,970	-25.2%	Shares	Sole	2023-11-09
2023-06-30	$1,186,777	10,660	-42.0%	Shares	Sole	2023-08-09
2021-12-31	$3,006,989	18,388	+72.5%	Shares	Sole	2022-02-11
2021-06-30	$1,428,013	10,660	-49.1%	Shares	Sole	2021-08-10
2021-03-31	$2,548,952	20,948	-72.8%	Shares	Sole	2021-05-12
2020-12-31	$9,225,415	76,949	+15.4%	Shares	Sole	2021-02-10
2020-09-30	$5,297,041	66,663	+421.3%	Shares	Sole	2020-11-12
2020-06-30	$1,080,629	12,787	+452.6%	Shares	Sole	2020-08-13
2020-03-31	$125,349	2,314	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.