Critical Metals Surges 25% as Greenland Security Pact Puts Tanbreez Rare Earth Permit in Focus; USA Rare Earth Climbs 6%, MP Materials Rises 4%

A U.S.-Greenland security pact sent one small-cap rare earth stock soaring 25% at the open, but the deal contains a catch that changes nothing about what the company actually owns or produces.

Published September 21, 2026, 8:31am ET · 4 min read

Market Movers desk. Editor: David Moadel.

Small pile of minerals extracted in a rare earth mine
© Joaquin Corbalan P / Shutterstock.com

Shares of Critical Metals (NASDAQ:CRML) are surging in early Monday trading after news of a U.S.-Greenland security pact put the company’s Tanbreez rare earth exploitation permit back in front of investors. Critical Metals stock is at $8.41, up 25%, and the bid concentrates in the one listed name a Greenland headline attaches to directly.

The VanEck Rare Earth and Strategic Metals ETF (NYSEARCA:REMX) is at $70.09, up 2%, showing the broader rare earth complex isn’t repricing in step with Critical Metals. Also, the SPDR S&P 500 ETF Trust (NYSEARCA:SPY) is at $767.08, up 0.7%, a positive but comparatively quiet backdrop that lets the Critical Metals move stand out.

Meanwhile, USA Rare Earth (NASDAQ:USAR) stock is at $16.34, up 6%, and MP Materials (NYSE:MP) stock is at $49.07, up 4%. Both are trading as second-order beneficiaries of any Western push to lock in non-China rare earth supply.

Greenland Security Pact Puts Tanbreez in the Spotlight

President Trump announced Friday that the U.S., Denmark and Greenland had reached an agreement on Greenland’s security, saying Denmark would grant the United States permanent control over security and all other needs in Greenland, and that the deal came at no cost to the United States. Denmark’s Prime Minister Mette Frederiksen and Greenland’s Prime Minister Jens-Frederik Nielsen said in a joint statement that the agreement strengthens common security in the Arctic and the North Atlantic area while recognizing the sovereignty and territorial integrity of the Kingdom and the right of the Greenlandic people to self-determination. The agreement’s text hasn’t been released, which explains the sharp Critical Metals response.

A U.S. State Department official, who was not named, described the provisions as permanent access, basing and overflight rights, unilateral U.S. power to build additional military structures without approval from Greenland or Denmark, and a ban on adversaries making investments in Greenland’s sensitive sectors. None of the described provisions transfers a mining right, grants a mining license or provides funding for a mining project. The agreement is expected to be signed at the United Nations General Assembly and still needs to move through parliamentary procedures to enter into force, leaving the Critical Metals reaction pinned to political posture rather than a signed document.

Why the Bid Lands on Critical Metals

Critical Metals owns Tanbreez in southern Greenland, which the company says holds the only exploitation permit for rare earths in Greenland. The company is pre-revenue and in the exploration and development stage, with Tanbreez sitting alongside the Wolfsberg lithium project in Austria. That single-permit status is what lets a Greenland political headline attach cleanly to Critical Metals rather than diffuse across a sector ETF.

The complication: the deal doesn’t hand Critical Metals a mining right it doesn’t already hold or capital it doesn’t already have. Today’s action prices a change in geopolitical posture around a permitted deposit rather than a change in what Critical Metals currently produces.

Peer Reaction and Sector Read

USA Rare Earth and MP Materials are the natural second-order names to bid on a U.S.-Greenland story. Their moves are meaningfully smaller than the Critical Metals gain, suggesting the market is pricing a specific asset advantage at Tanbreez rather than a sector-wide re-rate. The VanEck fund’s modest lift reinforces that: the broader rare earth complex, weighted heavily toward Chinese and Australian producers, isn’t following in step.

Because USA Rare Earth and MP Materials operate outside Greenland, the read-through from a Greenland headline is thematic rather than asset-specific. That sympathy bid can unwind quickly if the political story stalls before signature, the same dynamic we walked through in a recent look at China’s rare earth chokehold and the scramble for non-China supply.

What to Watch Next

Investors can watch for the signing at the U.N. General Assembly and any published text of the agreement, since that’s where the Critical Metals story either firms up or fades. The next hard catalyst is the definitive feasibility study targeted by end of 2026, which moves Tanbreez forward regardless of the security pact.

Given how much of today’s Critical Metals move rests on a headline whose text isn’t public, traders should size their exposure to fit a pre-revenue explorer with a going concern doubt flagged in its filings rather than a producing miner. Investors may want to keep an eye on whether the peer names hold their gains once the initial headline reaction fades, since sympathy trades in rare earths have historically given back quickly when the political catalyst doesn’t convert into contracts.

Contact [email protected] for any questions or corrections.

David Moadel

David Moadel is financial writer specializing in stocks, ETFs, options, precious metals, and Bitcoin. David has written well over 1,000 articles for leading online publications, helping investors understand markets, income strategies, and risk.His work has appeared in The Motley Fool, InvestorPlace, U.S. News & World Report, TipRanks, ValueWalk, Benzinga, Market Realist, TalkMarkets, Finmasters, 24/7 Wall St., and others.With a master’s degree in education, David has taught at the elementary, high school, and college levels. That teaching background shapes his writing style: clear, educational, and practical. David has also built a loyal social-media audience by providing trustworthy financial content on YouTube, X/Twitter, and StockTwits.

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