Century Aluminum (CENX) has been in focus after upbeat quarterly results and guidance, as investors weigh how the Mt. Holly restart and Grundartangi ramp toward near full operations by July could influence the stock.

The strong Q4 results and upbeat guidance have arrived alongside powerful momentum, with a 30 day share price return of 18.9%, a 90 day return of 74.4%, and a very large three year total shareholder return that signals sentiment has shifted meaningfully.

If this aluminum story has you thinking about broader materials exposure, it could be worth scanning our list of 8 top copper producer stocks as another way to look for potential opportunities in metals.

With the stock up sharply over the past year and trading at a premium P/E to peers while some models flag an 83% discount to intrinsic value, you have to ask whether there is still a buying opportunity here or whether the market already reflects expectations for future growth.

Most Popular Narrative: 13.6% Undervalued

With Century Aluminum last closing at $54.73 versus a narrative fair value of about $63.33, the most followed story in the market argues that current pricing does not fully reflect its modeled earning power and cash generation potential.

The expansion and restart of Mt. Holly, along with progress on a new U.S. smelter, positions Century Aluminum to meaningfully increase U.S. primary aluminum production, capturing rising domestic demand driven by reshoring of supply chains and incentivized by government tariffs and trade protections. This is expected to support future revenue growth and improved fixed cost absorption, which in turn may enhance net margins.

To understand what underpins that confidence in higher margins and volumes, and how those assumptions translate into a higher value per share, the full narrative sets out a detailed path for revenue, earnings and cash flow that differs significantly from what the current price implies.

Result: Fair Value of $63.33 (UNDERVALUED)

However, this hinges on Section 232 tariffs and Midwest premiums staying supportive, and on big ticket projects like Mt. Holly and Oklahoma avoiding cost or timing stumbles.

Another View: Rich Multiples Versus Cash Flow Story

Here is the tension. While our DCF model flags CENX as trading 76.8% below its estimated future cash flow value, the market is currently pricing the stock at a P/E of 135.4x, versus 21.1x for the US Metals and Mining industry, a peer average of 13.7x, and a fair ratio of 49.1x that the market could move towards over time. That gap leaves you weighing whether the share price is stretching too far ahead of near term earnings or whether the cash flow outlook is strong enough to close the distance.

Next Steps

If this all feels like a mixed picture, now is the time to look through the numbers yourself and decide where you stand. Start with 3 key rewards and 4 important warning signs.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.