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Custom Index Systems’s MKS Inc MKSI Stock Holding History

Custom Index Systems’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
Q2 		$1.02M Buy
2,295
+901
+65% +$282K 0.37% 68
2026
Q1 		$320K Sell
1,394
-1,494
-52% -$338K 0.14% 193
2025
Q4 		$462K Sell
2,888
-1,873
-39% -$278K 0.2% 139
2025
Q3 		$589K Buy
+4,761
New +$507K 0.18% 145
2024
Q2 		– Sell
-3,369
Closed -$448K – 289
2024
Q1 		$448K Sell
3,369
-19
-0.6% -$2.21K 0.25% 113
2023
Q4 		$349K Buy
+3,388
New +$275K 0.21% 141

Other funds holding MKSI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
AMH
Aspex Management (HK) Central, Hong Kong $8.89B AUM 39.91% 1-Year Est. Return

Custom Index Systems's MKSI Position: Q2 2026 in Review

Custom Index Systems increased its MKS Inc (MKSI) stake by 65% in Q2 2026, buying an estimated $282K and bringing the position to 2,295 shares worth $1.02M. The position accounts for 0.37% of the portfolio, ranked #68.

Custom Index Systems first reported a position in MKSI in Q4 2023 and has held it in 6 quarters since. 775 funds tracked by Wall St. Rank hold MKSI as of Q2 2026.

  • Custom Index Systems held 2,295 shares of MKS Inc worth $1.02M as of Q2 2026.
  • Custom Index Systems bought 901 MKS Inc shares in Q2 2026, an estimated $282K.
  • MKS Inc made up 0.37% of Custom Index Systems's portfolio in Q2 2026, its #68 holding.
  • Custom Index Systems first reported a position in MKS Inc in Q4 2023 and has held it in 6 quarters since.
  • 775 funds tracked by Wall St. Rank held MKS Inc as of Q2 2026.

Based on Custom Index Systems's 13F filing for Q2 2026, filed 14 Aug 2026.