Walleye Trading LLC

Position in MKSI — Mks Inc

CIK 1388391 NEW YORK, NY

Back to MKSI Full portfolio

Position in MKSI

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$264,211

-$191,961 QoQ

Shares Held

594

-70.1% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#589

of 773 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Derivatives in MKSI

reported options exposure · as of Jun 30, 2026

CallValue

$1,200,960

CallShares

2,700

PutValue

$1,512,320

PutShares

3,400

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Scientific & Technical Instruments

Technology · as of Jun 30, 2026

Walleye Trading LLC holds $809,857 across 3 Scientific & Technical Instruments names. MKSI ranks #2 (32.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KEYS	Keysight Technologies, Inc.	870	$304,560
2	MKSI	Mks Inc This page	594	$264,211
3	CGNX	Cognex Corp	3,329	$241,086

All Filings in MKSI

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50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,200,960	2,700	+170.0%	Call	Sole	2026-08-03
2026-06-30	$1,512,320	3,400	-34.6%	Put	Sole	2026-08-03
2026-06-30	$264,211	594	-70.1%	Shares	Sole	2026-08-03
2026-03-31	$229,810	1,000	-71.4%	Call	Sole	2026-05-11
2026-03-31	$456,172	1,985	+47.1%	Shares	Sole	2026-05-11
2026-03-31	$1,195,012	5,200	-17.5%	Put	Sole	2026-05-11
2025-12-31	$1,006,740	6,300	-3.1%	Put	Sole	2026-02-13
2025-12-31	$559,300	3,500	+75.0%	Call	Sole	2026-02-13
2025-12-31	$215,570	1,349	-47.1%	Shares	Sole	2026-02-13
2025-09-30	$247,540	2,000	-96.2%	Call	Sole	2025-11-14
2025-09-30	$804,505	6,500	+109.7%	Put	Sole	2025-11-14
2025-06-30	$308,016	3,100	-61.7%	Put	Sole	2025-08-13
2025-06-30	$5,295,888	53,300	+773.8%	Call	Sole	2025-08-13
2025-03-31	$649,215	8,100	+305.0%	Put	Sole	2025-05-14
2025-03-31	$488,915	6,100	-18.7%	Call	Sole	2025-05-14
2024-12-31	$782,925	7,500	+11.9%	Call	Sole	2025-02-13
2024-12-31	$208,780	2,000	-67.2%	Put	Sole	2025-02-13
2024-09-30	$277,427	2,552	+9.6%	Shares	Sole	2024-11-14
2024-09-30	$728,357	6,700	+378.6%	Call	Sole	2024-11-14
2024-09-30	$663,131	6,100	-1.6%	Put	Sole	2024-11-14
2024-06-30	$182,812	1,400	-85.3%	Call	Sole	2024-08-14
2024-06-30	$303,990	2,328	-81.5%	Shares	Sole	2024-08-14
2024-06-30	$809,596	6,200	-38.0%	Put	Sole	2024-08-14
2024-03-31	$1,330,000	10,000	-9.9%	Put	Sole	2024-05-15
2024-03-31	$1,263,500	9,500	-33.1%	Call	Sole	2024-05-15
2023-12-31	$1,460,754	14,200	-60.7%	Call	Sole	2024-02-14
2023-12-31	$1,141,857	11,100	+13.3%	Put	Sole	2024-02-14
2023-09-30	$3,124,094	36,100	-20.3%	Call	Sole	2023-11-21
2023-09-30	$848,092	9,800	+66.1%	Put	Sole	2023-11-21
2023-09-30	$1,087,548	12,567	+1593.7%	Shares	Sole	2023-11-21
2023-06-30	$637,790	5,900	+5.4%	Put	Sole	2023-08-14
2023-06-30	$4,896,930	45,300	+630.6%	Call	Sole	2023-08-14
2023-03-31	$65,756	742	-86.3%	Shares	Sole	2023-05-15
2023-03-31	$496,272	5,600	+250.0%	Put	Sole	2023-05-15
2023-03-31	$549,444	6,200	-37.4%	Call	Sole	2023-05-15
2022-12-31	$135,568	1,600	-30.4%	Put	Sole	2023-02-14
2022-12-31	$838,827	9,900	-33.6%	Call	Sole	2023-02-14
2022-09-30	$1,231,336	14,900	+432.1%	Call	Sole	2022-11-14
2022-09-30	$190,072	2,300	-83.9%	Put	Sole	2022-11-14
2022-06-30	$1,467,609	14,300	+134.4%	Put	Sole	2022-08-08
2022-06-30	$556,562	5,423	+352.3%	Shares	Sole	2022-08-08
2022-06-30	$287,364	2,800	+115.4%	Call	Sole	2022-08-08
2022-03-31	$195,000	1,300	-83.1%	Call	Sole	2022-05-16
2022-03-31	$915,000	6,100	+7.0%	Put	Sole	2022-05-16
2022-03-31	$179,850	1,199	+148.8%	Shares	Sole	2022-05-16
2021-09-30	$72,738	482	—	Shares	Sole	2021-11-15
2021-09-30	$860,187	5,700	+5.6%	Put	Sole	2021-11-15
2021-09-30	$1,162,007	7,700	-18.1%	Call	Sole	2021-11-15
2021-06-30	$960,930	5,400	—	Put	Sole	2021-08-16
2021-06-30	$1,672,730	9,400	—	Call	Sole	2021-08-16
No filing history on record for this holder in this stock.