Optiver Holding
KALU icon

Optiver Holding’s Kaiser Aluminum KALU Stock Holding History

Optiver Holding’s Portfolio KALU Stock Details KALU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$27.6K Buy
141
+125
+781% +$21.3K ﹤0.01% 1382
2026
Q1 		$1.93K Buy
16
+8
+100% +$1.01K ﹤0.01% 1870
2025
Q4 		$919 Sell
8
-66
-89% -$6.28K ﹤0.01% 2221
2025
Q3 		$5.71K Buy
+74
New +$5.88K ﹤0.01% 1630

Other funds holding KALU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return

Optiver Holding's KALU Position: Q2 2026 in Review

Optiver Holding increased its Kaiser Aluminum (KALU) stake by 781% in Q2 2026, buying an estimated $21.3K and bringing the position to 141 shares worth $27.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1382.

Optiver Holding first reported a position in KALU in Q3 2025 and has held it in 4 quarters since. 335 funds tracked by Wall St. Rank hold KALU as of Q2 2026.

  • Optiver Holding held 141 shares of Kaiser Aluminum worth $27.6K as of Q2 2026.
  • Optiver Holding bought 125 Kaiser Aluminum shares in Q2 2026, an estimated $21.3K.
  • Kaiser Aluminum made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1382 holding.
  • Optiver Holding first reported a position in Kaiser Aluminum in Q3 2025 and has held it in 4 quarters since.
  • 335 funds tracked by Wall St. Rank held Kaiser Aluminum as of Q2 2026.

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