Optiver Holding
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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
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 $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Optiver Holding's KALU Position: Q1 2026 in Review

Optiver Holding increased its Kaiser Aluminum (KALU) stake by 100% in Q1 2026, buying an estimated $1.01K and bringing the position to 16 shares worth $1.93K. The position accounts for ﹤0.01% of the portfolio, ranked #1870.

Optiver Holding first reported a position in KALU in Q3 2025 and has held it in 3 quarters since. The position peaked at $5.71K in Q3 2025. 286 funds tracked by Wall St. Rank hold KALU as of Q1 2026.

  • Optiver Holding held 16 shares of Kaiser Aluminum worth $1.93K as of Q1 2026.
  • Optiver Holding bought 8 Kaiser Aluminum shares in Q1 2026, an estimated $1.01K.
  • Kaiser Aluminum made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1870 holding.
  • Optiver Holding first reported a position in Kaiser Aluminum in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Kaiser Aluminum position peaked at $5.71K in Q3 2025.
  • 286 funds tracked by Wall St. Rank held Kaiser Aluminum as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.