Greenland-linked stocks rally on U.S.-Denmark deal

Over the weekend, President Trump announced a deal with Denmark that is expected to give the U.S. greater military and mining access to Greenland, which remains a Danish territory. U.S.-listed companies involved in the development of mineral resources on the Arctic island surged in response (1, 2).

• President Trump has issued multiple threats to take control of Greenland since reassuming office in 2025. Danish and Greenlandic officials have frequently rejected any deal that would cede territory to Washington (3).
• A hypothetical U.S. invasion of Greenland took on greater political gravity after the U.S. captured the Venezuelan president, Nicolás Maduro, in a high-stakes military raid in January 2026 (3).
• The newly brokered deal is light on details. President Trump announced the agreement on Truth Social, claiming that Washington now has "permanent control over security, and all other needs, in Greenland, completely addressing ALL of our many U.S. concerns" (4).
• Although mining and minerals development were not specifically named, Greenland has some of the largest deposits of critical minerals on Earth. These include lithium, which is used in batteries, and numerous rare-earth minerals necessary for cutting-edge technology and green energy. Greenland also boasts oil and gas (5, 6).
• In a possible allusion to the island's mineral wealth, President Trump said that the U.S. "will work with the people of Greenland in its development and construction." He also asserted that there would be "NO COST to the United States!" (4).
• Those comments were enough to send related stocks soaring. Greenland Energy (GLND), an oil- and gas-exploration firm, rocketed 150% premarket, while Greenland Mines (GRML) and Critical Metals Corp. (CRML) — both focused on mining interests — gained 69% and 26%, respectively (2).
• However, the cost of extracting resources from Greenland is notoriously high due to limited infrastructure, the vast ice sheet that covers much of the country, and environmental challenges like sea ice and extreme cold (5, 6, 7).
• Local politics may also pose a challenge. In 2021, a left-wing environmentalist party won Greenlandic parliamentary elections after campaigning against rare-earth development (8).
• Officials in Denmark and Greenland attempted to assure Greenlanders that the island's sovereignty would not be compromised by any agreement with the U.S. Residents had expressed concerns over Trump's claim that Washington would "FOREVER have the complete ability to do what is necessary in Greenland" (2, 4, 9).
• The pact is expected to be signed this week during the U.N. General Assembly, at which time further details may become clear (2).

Sources & Further Reading

1. "Why is Greenland part of the Kingdom of Denmark? A Short History." Danish Institute for International Studies. October 9, 2025.
2. "U.S.-listed Greenland stocks surge after Trump announces security deal with Denmark." CNBC. September 21, 2026.
3. "Trump's Greenland threats leave allies sweating: How we got here." Axios. January 7, 2026.
4. Post by Donald J. Trump. Truth Social. September 18, 2026.
5. "Greenland is rich in natural resources – a geologist explains why." The Conversation. January 8, 2026.
6. "The mineral riches hiding under Greenland's ice." BBC. January 6, 2026.
7. "Why Greenland’s vast natural resources won’t necessarily translate into huge profits." The Conversation. January 12, 2026.
8. "Opposition Wins Greenland Election After Running Against Rare Earths Mine." New York Times. April 7, 2021.
9. "Greenland, Denmark Reject US Sovereignty Claims as Trump Hails Security Deal." Modern Diplomacy. September 19, 2026.