S&P 500 is little changed as traders brace for key Fed rate decision, outlook: Live updates

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Traders enactment connected the level astatine the New York Stock Exchange (NYSE) successful New York City, U.S., Sept. 15, 2025.

Brendan McDermid | Reuters

Stocks were mixed Wednesday arsenic traders prepared for a much-anticipated monetary argumentation determination and an adjacent much important argumentation outlook from the Federal Reserve.

The S&P 500 traded conscionable 0.1% higher, portion the Nasdaq Composite shed 0.1%. The Dow Jones Industrial Average outperformed, climbing 158 points, oregon 0.3%.

Nvidia shares dipped much than 1% aft The Financial Times reported, citing sources, that China has banned tech companies successful the state from buying Nvidia's chips.

Traders astir universally expect the Federal Reserve volition little involvement rates connected Wednesday, a determination that could boost the U.S. system amid signs the labour marketplace is slowing adjacent arsenic ostentation stays stubbornly supra the cardinal bank's 2% target. Policymakers volition besides springiness much penetration into their outlook for rates implicit the adjacent twelvemonth oregon truthful successful the closely-watched "dot plot" grid that accompanies their quarterly Summary of Economic Projections.

Investors volition besides ticker for immoderate argumentation dissents from Fed policymakers aft 2 specified disagreements astatine the past gathering successful July. Traders person priced successful a 96% accidental that the Fed volition chopped rates by 25 ground points, oregon a 4th percent point, and conscionable 4% likelihood that the marketplace volition get a fractional constituent simplification Wednesday, per the CME Group's FedWatch tool.

Paul McCulley, erstwhile main economist astatine Pimco, told CNBC's "The Exchange" connected Tuesday that a much blimpish quarter-point complaint chopped is the astir apt outcome.

"Quite frankly, I don't cognize however I would explicate [a 50 ground constituent cut] successful the existent discourse without saying the labour marketplace truly is worrying maine intensely, and I don't deliberation that's the connection that Chair Powell wants to pass — astatine slightest not now," McCulley said. 

Stocks are coming disconnected of a lackluster trading session, wherever large U.S. indexes ended small changed.

Stocks unfastened small changed to footwear disconnected Wednesday trading

Housing starts, gathering permits miss estimates successful August

In an aerial view, homes are seen nether operation astatine a caller lodging improvement connected August 08, 2025 successful Henderson, Nevada.

Justin Sullivan | Getty Images

In different dose of atrocious quality for the lodging market, gathering permits and caller operation some were good beneath expectations successful August.

Permits totaled a seasonally adjusted annualized complaint of 1.31 cardinal for the month, down 3.7% from the upwardly revised July complaint and beneath the Dow Jones statement estimation for 1.37 million.

On lodging starts, the numbers were astir identical, astatine 1.307 million, down 8.5% from the somewhat revised July level and besides beneath the 1.37 cardinal forecast.

Completions roseate 8.4% from July but were disconnected the aforesaid percent from a twelvemonth ago.

—Jeff Cox

Nvidia, Alibaba, Baidu among the names making moves earlier the bell

Some stocks, including Nvidia and Alibaba, are making moves successful premarket trading Wednesday:

  • Nvidia – The artificial quality spot darling dropped much than 1% aft a report by The Financial Times, which cited 3 radical with cognition of the matter, said that China's net regulator has banned the biggest tech companies successful the state from buying Nvidia's AI chips. Shares of chipmaker Advanced Micro Devices besides fell much than 1% successful sympathy pursuing the report.
  • Alibaba – U.S.-listed shares of the Chinese e-commerce elephantine gained 2.3% after Chinese authorities media reported that the institution won a large customer, China Unicom, for its artificial quality chips.
  • Baidu – The Chinese tech institution surged astir 8%. The determination comes connected the heels of Arete Research Services upgrading Baidu's American depositary receipts to bargain from sell, citing a affirmative outlook for its AI spot and cloud-computing revenue.

Read here for the afloat list.

— Sean Conlon

Nvidia CEO responds to study connected China ban

Co-founder and CEO of Nvidia Jensen Huang spoke to journalists during a travel to Beijing successful July.

Picture Alliance | Picture Alliance | Getty Images

Nvidia CEO Jensen Huang was asked astatine a quality league astir The Financial Times report that noted China's net regulator had barred Chinese tech firms from buying the semiconductor's products.

Huang said: "We tin lone beryllium successful work of a marketplace if a state wants america to be." 

As of 8:10 a.m. ET, Nvidia shares were down 1.2%.

— Fred Imbert

Alibaba shares leap aft landing a large lawsuit for its AI chips

U.S.-listed shares of Alibaba gained much than 2% earlier Wednesday's unfastened aft Chinese authorities media reported that the e-commerce elephantine secured a large customer for its artificial quality chips.

China Unicom—the country's second-largest telecommunications company—will deploy Alibaba's AI accelerators from its semiconductor portion called Pingtouge oregon T-Head, according to a study from China authorities broadcaster CCTV, which was confirmed to CNBC. Alibaba does not merchantability chips directly, but companies tin efficaciously usage the computing powerfulness based connected those semiconductors by buying Alibaba unreality services. More here.

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Alibaba banal show implicit the past year.

— Pia Singh, Arjun Kharpal

China bans tech companies from buying Nvidia chips, FT reports

Nvidia logo and Chinese emblem are seen successful this illustration taken Aug. 27, 2025.

Dado Ruvic | Reuters

Nvidia shares were down astir 1% successful the premarket aft The Financial Times reported, citing 3 radical with cognition of the matter, that China's net regulator had barred tech companies successful the state from buying the AI giant's chips. AMD followed Nvidia little successful aboriginal trading arsenic well.

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NVDA 5-day chart

— Fred Imbert

Cytokinetics' banal moves aft hours

Cytokinetics' shares roseate astir 1% successful after-hours trading connected Tuesday, soon aft the biopharmaceutical institution announced it plans to rise up to $650 cardinal done an offering of convertible elder notes owed successful 2031.

— Liz Napolitano

Correction: A erstwhile mentation misstated the size of the notes offering.

Societe Generale's Subadra Rajappa: "You could spot an unwind" if Fed acts little dovish than marketplace is pricing in

Stocks could autumn if the Fed adopts a little dovish stance than expected implicit the coming months, Subadra Rajappa, caput of U.S. rates astatine Societe Generale, said Tuesday connected CNBC's "Fast Money."

"You could spot an unwind…if there's a consciousness that the Fed is not consenting to enactment arsenic aggressively arsenic the marketplace is pricing in," Rajappa said.

The Fed volition supply much penetration into its complaint outlook this week erstwhile it releases its wide followed "dot plot" grid.

— Liz Napolitano

Stock futures are small changed

Stock futures were small changed Tuesday nighttime to commencement the session, arsenic traders braced for the Fed's cardinal argumentation announcement.

Contracts tied to the large averages hovered astir the flatline aft a league successful which the S&P 500 deed an intraday high.

-- Fred Imbert

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