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Rossby Financial’s Century Aluminum CENX Stock Holding History

Rossby Financial’s Portfolio CENX Stock Details CENX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$391K Sell
8,500
-200
-2% -$12K 0.07% 240
2026
Q1 		$553K Sell
8,700
-350
-4% -$17.5K 0.11% 171
2025
Q4 		$355K Buy
+9,050
New +$283K 0.11% 163

Other funds holding CENX

G
Glencore Baar, Switzerland $4.87B AUM 67.38% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
SG
Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Rossby Financial's CENX Position: Q2 2026 in Review

Rossby Financial reduced its Century Aluminum (CENX) stake by 2.3% in Q2 2026, selling an estimated $12K and leaving 8,500 shares worth $391K. The position accounts for 0.07% of the portfolio, ranked #240.

Rossby Financial first reported a position in CENX in Q4 2025 and has held it in 3 quarters since. The position peaked at $553K in Q1 2026. 415 funds tracked by Wall St. Rank hold CENX as of Q2 2026.

  • Rossby Financial held 8,500 shares of Century Aluminum worth $391K as of Q2 2026.
  • Rossby Financial sold 200 Century Aluminum shares in Q2 2026, an estimated $12K.
  • Century Aluminum made up 0.07% of Rossby Financial's portfolio in Q2 2026, its #240 holding.
  • Rossby Financial first reported a position in Century Aluminum in Q4 2025 and has held it in 3 quarters since.
  • Rossby Financial's Century Aluminum position peaked at $553K in Q1 2026.
  • 415 funds tracked by Wall St. Rank held Century Aluminum as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.