Wall Street advanced on Tuesday, pushing the S&P 500 and Nasdaq Composite to record closing highs as enthusiasm over artificial intelligence, easing Treasury yields and relatively subdued oil prices supported investor sentiment.
The S&P 500 gained 0.6% to close at 7,820.85, marking its first finish above 7,800. The Nasdaq Composite rose 0.5% to a record 27,599.79, while the Dow Jones Industrial Average climbed 0.5% to 51,521.22.
U.S. stocks have rebounded strongly in October following a subdued September. The S&P 500 has risen during every trading session this month, helped by renewed demand for AI-related stocks and expectations that the Federal Reserve could delay further monetary policy tightening.
Friday's weaker-than-expected September employment report encouraged investors to reduce expectations for an imminent Fed rate hike. Lower oil prices have also eased some concerns about energy-driven inflation, strengthening expectations that policymakers could hold rates steady this month before potentially tightening in December.
The rally comes as the Wall Street bull market that began in 2022 approaches its fourth anniversary. However, much of the market's strength remains concentrated among the Magnificent Seven and other mega-cap technology companies, while more cyclical stocks have faced greater pressure.
Treasury markets also provided relief Tuesday. The benchmark 10-year U.S. Treasury yield fell 3.7 basis points to 5.276%, while the 30-year yield slipped to 5.655%. Both yields recently reached their highest levels since 2002 amid concerns about fiscal debt, inflation and borrowing linked to AI infrastructure investment.
Oil reversed earlier declines, with Brent crude rising 0.5% to $101.13 per barrel as improved Middle East exports competed with renewed concerns over attacks around the Strait of Hormuz.
Among individual stocks, Skydance fell 2.7% on its first trading day following completion of Paramount Skydance's $110 billion acquisition of Warner Bros. Discovery. Constellation Energy surged more than 12% after announcing a 20-year power purchase agreement with Alphabet's Google.


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