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U.S. Markets Moved Upward Friday; Oklo Climbed Highest

Sep 19, 2025 16:10:00 -0400 | #Markets

U.S. stock indexes climbed Friday with the rising 0.72%. Meanwhile, the gained 0.49%, and the increased 0.37%.

The , which focuses on small-cap stocks, fell 0.74%, and the Cboe Volatility Index was down 1.02%.

Among companies with at least $10 billion in market value, Oklo Inc. (OKLO), was the biggest leader during the session, rocketing 28.62%, and NuScale Power Corp. (SMR) rocketed 22.51%. Joby Aviation Inc. (JOBY) rounded out the top three leaders on Friday, with shares surging 13.19%.

DexCom Inc. (DXCM) posted the largest decline, tumbling 10.99%, followed by Maplebear Inc. (CART) shares, which fell 8.59%. Shares of Cognizant Technology Solutions Corp. (CTSH) declined 4.73%.

In commodities news, Brent crude oil futures were down 0.07%, while gold futures were up 1.05%. rose 0.14% to $115,322.

The 10-Year Treasury yield rose to 4.131%.

Stock indexes in Asia were down, with Japan’s NIKKEI 225 Index declining 0.57% and China’s Shanghai Composite Index falling 0.30%.

In Europe, indexes fell, with the STOXX Europe 600 Index falling 0.16% and the FTSE 100 Index falling 0.12% 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.