Century Aluminum shares rose 4% on October 21, 2026, alongside favorable remarks from Greenlight Capital’s David Einhorn and UBS’s initiation of coverage with a Buy rating. The stock was quoted at $34.26, as investor attention focused on U.S. aluminum premiums and the possibility of changes to tariffs on Canadian imports.

Key Takeaways

  • Century Aluminum gained 4%, with a quoted share price of $34.26.
  • UBS initiated a Buy rating, highlighting exposure to U.S. regional aluminum premiums.
  • Potential Canadian tariff relief remained uncertain, rather than an enacted policy change.

Table of Contents

Century Aluminum shares gain alongside investor backing

Einhorn, president of Greenlight Capital, made favorable remarks about Century Aluminum at the 14th annual J.P. Morgan / Robin Hood Investors Conference in New York City. His comments and UBS’s new rating accompanied the stock’s advance; the available information does not isolate either development’s contribution to the price move.

Robin Hood’s conference agenda announcement scheduled the event for October 21 at Spring Studios and listed Einhorn among the presenters of investment ideas. That announcement establishes the event details and his planned participation, rather than the substance of his Century Aluminum remarks.

The $34.26 share price was not identified as a closing price. Century Aluminum trades on Nasdaq under the ticker CENX.

ItemDetails
BusinessU.S.-based producer of primary aluminum.
Operating footprintUnited States, Iceland and the Netherlands.
ProductsHigh-purity aluminum, standard-grade aluminum bars, billets and alloys.
CustomersIndustrial manufacturers and traders across North America, Europe and Asia.

Tariff expectations remain separate from confirmed policy

UBS’s investment case emphasized Century Aluminum’s sensitivity to rising U.S. regional aluminum premiums and potential relief from tariffs on Canadian aluminum imports.

Discussion of a possible trade agreement included the prospect of halving tariffs on Canadian steel and aluminum. That possibility should not be treated as an announced agreement or an implemented tariff reduction.

The distinction matters because a favorable analyst rating expresses an investment view, not a company earnings forecast. The supplied information does not quantify how a tariff change would affect Century Aluminum’s costs, selling prices or profit.

Conclusion

The October 21 gain coincided with supportive investor commentary and a new UBS Buy rating. The policy issue to watch is whether a formal tariff announcement follows; potential relief alone does not establish a change in Century Aluminum’s earnings outlook.

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