Optiver Holding
DGX icon

Optiver Holding’s Quest Diagnostics DGX Stock Holding History

Optiver Holding’s Portfolio DGX Stock Details DGX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$132K Buy
625
+547
+701% +$107K ﹤0.01% 976
2026
Q1 		$15.3K Buy
+78
New +$15.2K ﹤0.01% 1145
2023
Q2 		– Sell
-162
Closed -$22.9K – 504
2023
Q1 		$22.9K Buy
+162
New +$23.2K ﹤0.01% 446
2022
Q1 		– Sell
-28
Closed -$4K – 598
2021
Q4 		$4K Hold
28
– – ﹤0.01% 800
2021
Q3 		$4K Buy
+28
New +$4.1K ﹤0.01% 650

Other funds holding DGX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

Optiver Holding's DGX Position: Q2 2026 in Review

Optiver Holding increased its Quest Diagnostics (DGX) stake by 701% in Q2 2026, buying an estimated $107K and bringing the position to 625 shares worth $132K. The position accounts for ﹤0.01% of the portfolio, ranked #976.

Optiver Holding first reported a position in DGX in Q3 2021 and has held it in 5 quarters since. 1,100 funds tracked by Wall St. Rank hold DGX as of Q2 2026.

  • Optiver Holding held 625 shares of Quest Diagnostics worth $132K as of Q2 2026.
  • Optiver Holding bought 547 Quest Diagnostics shares in Q2 2026, an estimated $107K.
  • Quest Diagnostics made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #976 holding.
  • Optiver Holding first reported a position in Quest Diagnostics in Q3 2021 and has held it in 5 quarters since.
  • 1,100 funds tracked by Wall St. Rank held Quest Diagnostics as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.