Biggest stock movers Friday: AMAT, RUM, and more

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Stock futures edged up in premarket trading on Friday after Wall Street set record highs, propelled by strong performances in technology and semiconductor stocks, even as market participants navigated the challenges of a government shutdown and the postponement of critical payroll data.

Here are some of Friday's biggest stock movers:

BIGGEST STOCK GAINERS

* RUMBLE (NASDAQ:RUM [https://seekingalpha.com/symbol/RUM]) +12% - Shares jumped after the company announced a partnership with AI answer engine Perplexity to integrate AI-powered tools and boost discoverability on its video platform. The deal includes a new bundled subscription combining both companies’ premium plans, while Perplexity’s new product Comet will be promoted across the Rumble ecosystem, including the Rumble Advertising Center. The integration of Perplexity’s search technology into Rumble.com will roll out progressively, though financial terms were undisclosed.
* USA RARE EARTH (NASDAQ:USAR [https://seekingalpha.com/symbol/USAR]) +7% - Shares soared after CEO Barbara Humpton stated on CNBC that the company is in close communication with President Trump's administration. The news, which followed previous government investments in other critical metals suppliers like MP Materials (MP) and Lithium Americas (LAC), fueled speculation of a potential federal stake in the company. Humpton commented that it will take many players to build out the U.S. rare earth supply chain and that the company is keeping the administration informed of its plans, adding to investor optimism.

BIGGEST STOCK LOSERS

* APPLIED MATERIALS (NASDAQ:AMAT [https://seekingalpha.com/symbol/AMAT]) -3% -Shares slipped after the chip equipment maker warned that a new U.S. export rule will further limit its sales to China. The company said that the updated “BIS Affiliates Rule” could cut its fourth-quarter revenue by approximately $110M and its FY2026 revenue by around $600M. This new restriction adds to the pressure on the company, which has already trailed its peers this year due to its significant exposure to the Chinese market.