CENX β€” CENTURY ALUM CO

Ownership history in FOX RUN MANAGEMENT, L.L.C.  Β·  6 quarters on record

This page tracks every 13F SEC filing in which FOX RUN MANAGEMENT, L.L.C. reported a position in CENTURY ALUM CO (CENX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.11% (2022 Q3)
πŸ“Š Avg. % of fund
0.07%
πŸ“… First filed
2022 Q3
πŸ“… Last filed
2025 Q3
⏱ Quarters held
6

Position Intelligence

FOX RUN MANAGEMENT, L.L.C. Γ— CENX AI Analytics

πŸ“ˆ FOX RUN MANAGEMENT, L.L.C. outperformed the S&P 500 by +126.7% annually on this CENX position. Timing score: 40% (2/5 decisions correct). Average cost basis: $8.14. Maximum drawdown during holding period: –1.1%.

πŸ“ˆ Position Alpha vs SPY
+126.7%
annualised excess return

πŸ”₯ Exceptional β€” beat the S&P 500 by 126.7% per year on this position.
5 quarters analyzed

⏱️ Timing Score
40%

⚠️ Poor timing β€” buys often preceded drops, trims preceded rallies.
2 of 5 add/trim decisions correct

πŸ’° Entry Quality
$8.14
+260.7% vs current ($29.36)

Best entry: $5.28 (2022 Q3)  Β·  Worst: $18.22 (2024 Q4)

πŸ›‘οΈ Drawdown Resilience
–1.1%
max drawdown while held

πŸ’Ž No drawdown exceeding 20% during the holding period β€” exceptionally stable.

πŸ’ͺ Fund Conviction
50%
buy-side decisions

3 adds Β· 3 trims. Bought during 1 of 1 down-price quarters. πŸ“ˆ More buys than sells across the holding period.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.03% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    CENX price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 6 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 7,324 -28,222 -79.4% 0.03% $215K $29.36
2025 Q2 ADDED 35,546 +14,217 +66.7% 0.11% $641K $18.02
2024 Q4 ADDED 21,329 +1,322 +6.6% 0.07% $389K $18.22
2024 Q1 REDUCED 20,007 -820 -3.9% 0.07% $308K $15.39
2023 Q3 REDUCED 20,827 -33,017 -61.3% 0.04% $150K $7.19
2022 Q3 INITIATED 53,844 β€” β€” 0.11% $284K $5.28

🏒 Other funds also holding CENX

As of 2025 Q4 β€” sorted by position size

Impala Asset Management LLC 3Y 7Y 21.17% Mountaineer Partners Management, LLC 3Y 7Y 13.34% Sourcerock Group LLC 3Y 7.92% Kailix Advisors LLC 6.4% Steamboat Capital Partners, LLC 3Y 7Y 4.56% Westend Capital Management, LLC 3Y 7Y 4.11% Hartree Partners, LP 3Y 7Y 3.07% ICON ADVISERS INC/CO 3Y 7Y 2.05% Aldebaran Capital, LLC 3Y 2.03% WEXFORD CAPITAL LP 3Y 7Y 1.85%
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