Century Aluminum Stock Surges 150% in One Year as $5 Million Buy Lifts Stake to $34 Million

Impala Asset Management increased its stake in Century Aluminum (NASDAQ: CENX) by 168,805 shares in Q4 — an estimated $5.27 million trade based on quarterly average pricing — bringing its quarter-end holding to 857,805 shares valued at $33.61 million, or roughly 21.17% of its 13F-reportable assets. Century Aluminum’s fundamentals show TTM revenue of $2.53 billion and net income of $85.2 million; shares closed at $49.70 on Feb 12, 2026 (up 146.5% year-over-year). Recent operating results included Q3 net sales of $632.2 million, adjusted EBITDA of $101.1 million, adjusted EPS of $0.56 and liquidity of $488.2 million, supporting Impala’s high-conviction, cyclical bet despite exposure to aluminum prices, power costs and trade-policy swings.

Analysis

Market structure: Impala’s 21%-weighted buy of CENX is a high-conviction play that increases the stock’s liquidity and elevates its idiosyncratic beta versus aluminum prices. Direct beneficiaries are primary aluminum producers with U.S./Iceland footprints (CENX itself), while downstream fabricators face higher input prices if premiums persist; power-intensive peers are most exposed to rising energy costs. Cross-asset: a sustained rally in aluminum would tighten credit spreads for producers but raise industrials' input-driven inflation risk, increasing implied volatility in CENX options and pressuring longer-duration equities if margins compress.

Risk assessment: Tail risks include a >15% crash in LME aluminum prices, large power-cost shocks (Nordic/Iceland grids), or sudden regulatory/tariff reversals that can wipe out current margins; each could erode EBITDA quickly given slim commodity cushions. Time horizons: immediate (days) — elevated IV and potential sell-on-news around 13F/quarterly releases; short-term (weeks–months) — sensitivity to aluminum spot and Midwest premium flows; long-term (quarters–years) — balance sheet discipline, capex and power contracts determine sustainable ROIC. Hidden dependencies: realized Midwest premiums, Iceland energy contracts, and anode supply chain; any one reversing removes current earnings tailwind.

Trade implications: Tactical-sized longs (2–3% portfolio) in CENX are sensible on pullbacks <10% given recent outperformance; hedge with long-dated puts or collars to cap downside. Pair trade: go long CENX and short XLB (materials ETF) to isolate company-specific upside; consider 6–12 month horizons. Options: use 3–6 month call spreads to play momentum and 6–12 month protective puts (strike ~20% below spot) to cap tail risk.

Contrarian angles: Consensus treats CENX as cyclical; what’s missed is structural supply attrition (smelter closures, environmental constraints) that can sustain Midwest premiums, making current EBITDA less transient. Conversely, Impala’s concentrated position could trigger liquidity-driven volatility if they trim; that single-investor concentration is a behavioral tail risk the market underprices. Historical parallels: commodity rallies that reversed when capacity came back online (2010–13 metals cycles) suggest prudent hedging and staged sizing.

Key Decisions for Investors

• Establish a 2–3% long position in CENX at market (current ~$49.70) with a 12-month target of $80 (+~60%) and a hard stop-loss at $40 (~20% downside).
• If initiating the position, implement a protective collar: buy 12-month CENX 40 put and sell 3–6 month 60 call to reduce financing cost; limit option spend to <0.5% of portfolio value.
• Execute a pair trade: long CENX equal-weight vs short XLB (materials ETF) for a 1% net portfolio exposure to isolate idiosyncratic upside; hold 6–12 months and rebalance on ±10% relative move.
• Set automated alerts and risk triggers: reduce CENX exposure by 50% if LME aluminum price falls >15% in 30 days or if CENX liquidity spikes (daily volume >2x average) coinciding with large block trades from major holders.