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U.S. Markets Declined Friday; Oklo Took Biggest Hit

Dec 12, 2025 16:10:00 -0500 | #Markets

Stock indexes in the U.S. declined Friday with the declining 1.69%. Meanwhile, the declined 1.07%, and the dropped 0.51%.

The of small-cap stocks declined 1.58%, while the Cboe Volatility Index was up 7.21%.

Among companies with at least $10 billion in market value, Oklo Inc. (OKLO) posted the largest decline during the session, tumbling 15.00%, followed by Sandisk Corp. (SNDK) shares, which tumbled 14.66%. Shares of Astera Labs Inc. (ALAB) tumbled 14.31%.

Rivian Automotive Inc. Cl A (RIVN), was the biggest leader, jumping 12.11%, and lululemon athletica inc. (LULU) gained 9.60%. GE Aerospace (GE) rounded out the top three leaders on Friday, with shares gaining 3.96%.

In commodities news, Brent crude oil futures were up 0.10%, and gold futures were up 0.44%. rose 0.03% to $90,248.

The 10-Year Treasury yield rose to 4.190%.

Stock indexes in Asia were up, with Japan’s NIKKEI 225 Index up 1.37% and China’s Shanghai Composite Index rising 0.41%.

In Europe, indexes fell, with the STOXX Europe 600 Index dropping 0.53% and the FTSE 100 Index declining 0.56% from the previous close.

U.S. stock markets close for trading at 4 p.m. ET. For regular updates on the trading day, visit Barron’s.

Editor’s Note: This story was auto-generated by Automated Insights, an automation technology provider, using data from Dow Jones and FactSet. See our market data terms of use.