Century Aluminum: The Revenue Miss Distracted From the Real Story

Century Aluminum stock remains fantastically undervalued. The company's second quarter results were the kind of quarter that should lift a stock — not tank it. Adjusted EBITDA jumped 41% sequentially. Operating cash flow nearly tripled year-over-year. The balance sheet flipped from leveraged to debt-free. All operating assets hit full capacity heading into a structural global aluminum deficit. And yet shares dropped 2.4% on the report and have lost roughly 14% since late April, caught in a post-earnings whipsaw triggered by a revenue miss that barely deserves the attention it received.

Let me walk through the numbers that matter, then talk about what this business is really worth.

The market fixated on net sales of $752.1 million missing estimates by roughly $67 million. That miss was a function of shipment timing and volume mix, not pricing or demand weakness. The pricing data tells the opposite story: Century's realized LME price was $3,250 per tonne, up $350 from the prior quarter. The U.S. Midwest premium — the regional surcharge above LME that reflects domestic tightness — was $2,480 per tonne, up $280. European premiums were $450 per tonne, up $140. In a commodity business, the price story is the margin story, and Century's price realization is accelerating.

The production data reinforces it. Shipments rose 6% sequentially to 131,000 tonnes. CEO Jesse Gary confirmed all major assets were at full capacity by the end of July — a material milestone for a company that spent the better part of 2025 wrestling with restarts and idled potlines. The Mt. Holly expansion in South Carolina added nearly 10% to U.S. primary aluminum production. Grundartangi in Iceland brought Line 2 back online six months ahead of schedule. Jamalco in Jamaica went online with a new self-generated power turbine that should cut costs roughly $20 per ton. This is not a company running in place. This is a company executing on capacity while prices move in its favor.

Now let's talk about cash flow, which is where the real transformation has occurred. Adjusted EBITDA attributable to Century surged $95.5 million sequentially to $326.9 million in Q2. Annualized, that works out to roughly $1.31 billion — a cash earnings level the market is almost certainly not pricing into this stock. On the operating cash flow side, the first half of 2026 produced $236 million compared to just $80.2 million in the first half of 2025. That's nearly a tripling. For context, in the first half of 2025, Century was still recovering from the Hawesville sale and managing drag from idled assets. The cash flow machine is no longer a work in progress. It's running.

From a balance sheet perspective, the transformation is equally stark. Century ended June with $388 million in cash. Net debt was reduced to $98 million. By the end of July, management confirmed cash exceeded total debt. Current maturities of long-term debt dropped to zero from $68.8 million at year-end. Total liquidity stands at $785 million against $480 million in long-term debt. A company that was leveraged and vulnerable twelve months ago now sits in near-net-zero-debt territory, with liquidity more than covering total obligations and $397 million in borrowing availability it doesn't need. That is the kind of balance sheet profile that normally commands a premium, not a discount.

Which brings us to valuation — because this is where the market's disconnect becomes almost absurd. At $51.5 on August 8th, Century's market cap is roughly $5.1 billion and its enterprise value is around $5.0 billion. The stock trades at a trailing P/E of 8.4 times, and a forward P/E of 5.2 times for fiscal 2026 — implying the market expects earnings growth to stop dead. On an annualized adjusted EBITDA basis, EV/EBITDA works out to approximately 3.8 times. That number is not a typo. It reflects a market that is pricing a commodity producer at a distressed multiple despite a debt-free balance sheet, accelerating cash flow, and full production capacity.

Compare that to Alcoa, the only other listed U.S. primary aluminum producer, which trades at 10.37 times trailing earnings and 15.16 times EV/EBITDA. Century's adjusted Q2 EPS of $2.46 annualizes to $9.84 per share, while Alcoa's trailing GAAP EPS works out to $4.84. Century produces roughly double the per-share earnings of its sole listed U.S. peer, yet trades at about half the earnings multiple. The adjusted earnings picture only widens the gap. That is not a relative valuation discrepancy. That is a structural mispricing.

The market's bear case centers on a few near-term headwinds, and I'll address them directly. Mt. Holly is experiencing some operational instability following its restart, expected to drag on Q3 results but resolve by Q4. Jamalco is working through lower-quality bauxite that will pressure costs for another couple of quarters. Q3 guidance calls for adjusted EBITDA of $325 million to $345 million, with management flagging $20–25 million in hedge settlement headwinds, $10–15 million in seasonal energy cost increases, and a $5 million raw material cost uptick. None of these are catastrophic. They are short-term friction on a cash flow base that more than quadruples the Q3 headwind total. Even in the worst-case Q3 scenario, Century still generates $325 million of adjusted EBITDA. A 3.8x multiple on that number still implies a company worth roughly $3 billion on enterprise value — below today's market cap. The stock is already pricing a worst case that is worse than the guidance.

Having said that, there's a catalyst pipeline that the market has yet to factor in. The Oklahoma smelter project — a joint venture with Emirates Global Aluminium — targets a final investment decision by the end of 2026, with first hot metal expected by the end of 2029. A $500 million DOE grant is already secured. A new executive order allows imports of up to 300,000 metric tons per year at a reduced 25% tariff rate for new domestic producers, which management described as "quite material" to the project's economics. That tariff benefit alone could add significant EBITDA once the smelter ramps. Separately, Century retains a 6.8% non-dilutive stake in the Hawesville data center it sold earlier this year, which has a signed 20-year lease with Anthropic generating roughly $19 billion in total lease revenue. That stake is an embedded optionality that could fund future growth or shareholder returns.

All things considered, the cash flow profile is accelerating, the balance sheet is transformed, the operational base is at full capacity, the structural supply deficit in aluminum is intact, and the valuation discount to the only comparable peer is wider than it has any right to be. The revenue miss that spooked traders was a timing artifact, not a business deterioration. I reaffirm my Strong Buy rating.

Even if aluminum prices soften next year and the Oklahoma project slips by a year, the core business at this multiple still offers an enormous margin of safety. A company generating $1.3 billion in annualized adjusted EBITDA, with more cash than debt, trading at 3.8 times EV/EBITDA and 5.2 times forward earnings — that is not a stock you need to be afraid to own. That is a stock the market is afraid to recognize.