Optiver Holding
SPOK icon

Optiver Holding’s Spok Holdings SPOK Stock Holding History

Optiver Holding’s Portfolio SPOK Stock Details SPOK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$430 Sell
42
-120
-74% -$1.31K ﹤0.01% 2584
2026
Q1 		$1.77K Sell
162
-104
-39% -$1.32K ﹤0.01% 1897
2025
Q4 		$3.51K Hold
266
– – ﹤0.01% 1637
2025
Q3 		$4.59K Buy
+266
New +$4.73K ﹤0.01% 1810

Other funds holding SPOK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
HighTower Advisors
HighTower Advisors Chicago, Illinois $104B AUM 28.3% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Optiver Holding's SPOK Position: Q2 2026 in Review

Optiver Holding reduced its Spok Holdings (SPOK) stake by 74% in Q2 2026, selling an estimated $1.31K and leaving 42 shares worth $430. The position accounts for ﹤0.01% of the portfolio, ranked #2584.

Optiver Holding first reported a position in SPOK in Q3 2025 and has held it in 4 quarters since. The position peaked at $4.59K in Q3 2025. 132 funds tracked by Wall St. Rank hold SPOK as of Q2 2026.

  • Optiver Holding held 42 shares of Spok Holdings worth $430 as of Q2 2026.
  • Optiver Holding sold 120 Spok Holdings shares in Q2 2026, an estimated $1.31K.
  • Spok Holdings made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #2584 holding.
  • Optiver Holding first reported a position in Spok Holdings in Q3 2025 and has held it in 4 quarters since.
  • Optiver Holding's Spok Holdings position peaked at $4.59K in Q3 2025.
  • 132 funds tracked by Wall St. Rank held Spok Holdings as of Q2 2026.

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