Group One Trading
MKSI icon

Group One Trading’s MKS Inc MKSI Stock Holding History

Group One Trading’s Portfolio MKSI Stock Details MKSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-1,100
Closed -$176K – 8306
2025
Q4 		$176K Sell
1,100
-300
-21% -$44.5K ﹤0.01% 4496
2025
Q3 		$173K Buy
1,400
+300
+27% +$32K ﹤0.01% 4818
2025
Q2 		$109K Buy
1,100
+100
+10% +$8.13K ﹤0.01% 4892
2025
Q1 		$80.2K Buy
+1,000
New +$101K ﹤0.01% 4772
2024
Q2 		– Sell
-200
Closed -$26.6K – 7185
2024
Q1 		$26.6K Hold
200
– – ﹤0.01% 5217
2023
Q4 		$20.6K Hold
200
– – ﹤0.01% 5739
2023
Q3 		$17.3K Buy
+200
New +$19.5K ﹤0.01% 5990
2022
Q3 		– Sell
-800
Closed -$82K – 7951
2022
Q2 		$82K Hold
800
– – ﹤0.01% 5161
2022
Q1 		$120K Buy
800
+600
+300% +$93.2K ﹤0.01% 5316
2021
Q4 		$35K Sell
200
-200
-50% -$31.3K ﹤0.01% 6583
2021
Q3 		$60K Sell
400
-400
-50% -$61.4K ﹤0.01% 6391
2021
Q2 		$142K Sell
800
-95,100
-99% -$17.3M ﹤0.01% 5589
2021
Q1 		$17.8M Buy
+95,900
New +$16.1M 0.03% 604
2020
Q1 		– Sell
-1,000
Closed -$110K – 5553
2019
Q4 		$110K Buy
1,000
+700
+233% +$73.3K ﹤0.01% 3581
2019
Q3 		$28K Buy
300
+100
+50% +$8.26K ﹤0.01% 4232
2019
Q2 		$16K Buy
200
+100
+100% +$8.45K ﹤0.01% 4263
2019
Q1 		$9K Sell
100
-1,900
-95% -$153K ﹤0.01% 4311
2018
Q4 		$129K Hold
2,000
– – ﹤0.01% 3008
2018
Q3 		$160K Sell
2,000
-14,600
-88% -$1.33M ﹤0.01% 3174
2018
Q2 		$1.59M Buy
16,600
+15,600
+1,560% +$1.7M 0.01% 1302
2018
Q1 		$116K Buy
+1,000
New +$110K ﹤0.01% 3159
2017
Q3 		– Sell
-10,100
Closed -$680K – 5030
2017
Q2 		$680K Buy
+10,100
New +$765K 0.01% 1734

Other funds holding MKSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Group One Trading's MKSI Position: Q1 2026 in Review

Group One Trading sold out of MKS Inc (MKSI) in Q1 2026, closing a stake of 6 shares — an estimated $1.36K sold.

Group One Trading first reported a position in MKSI in Q2 2017 and held it in 12 quarters. The position peaked at $73.6K in Q1 2025. 615 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

  • Group One Trading reported no remaining MKS Inc position as of Q1 2026 after selling out during the quarter.
  • Group One Trading sold 6 MKS Inc shares in Q1 2026, an estimated $1.36K.
  • Group One Trading first reported a position in MKS Inc in Q2 2017 and held it in 12 quarters.
  • Group One Trading's MKS Inc position peaked at $73.6K in Q1 2025.
  • 615 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.