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Meta Platforms said it has created a new business unit focused on selling artificial-intelligence tools to enterprise customers, aiming to turn its AI investment into revenue. The company said the unit will consolidate sales of several existing AI offerings, including the Muse personal assistant and a coding tool. Meta hired former MongoDB chief executive Chirantan Desai to run the business line and report directly to CEO Mark Zuckerberg.

Middle East tensions weighed on risk sentiment as the U.S.-Iran standoff persisted, after President Donald Trump said Iran’s proposal was unacceptable. Front-month WTI crude futures rose 0.8% to $93.16 a barrel. Treasury yields climbed across the curve, with the 2-year yield hitting a 52-week high. U.S. stocks closed lower, with the Dow down 0.7%, the S&P 500 down 0.8%, and the Nasdaq down 0.9%.

Major US stock indexes moved sharply lower intraday, with the Nasdaq Composite down 1.2%, the Dow Jones Industrial Average off more than 350 points and the S&P 500 down 0.9%. Brent crude rose more than 2% to $106.79 a barrel and WTI hovered around $94.40, adding to inflation worries. The benchmark 10-year Treasury yield broke above 5.2% and the 30-year yield rose above 5.5%, both at multiyear highs. Big tech stocks were under pressure, with AMD down about 3% and Micron, Microsoft and Meta also falling.

U.S. stocks opened lower on Monday, September 28, with the Dow falling more than 300 points as higher oil prices and rising Treasury yields weighed on sentiment. Brent crude rose more than 2% to $106.79 a barrel and WTI gained around 2% to $94.40 after President Donald Trump rejected conditions for a ceasefire proposed by Iran. The benchmark 10-year Treasury yield traded above 5.2% and the 30-year yield topped 5.5%. Nvidia also drew attention after authorising an additional $150 billion in share buybacks, lifting its remaining repurchase authorisation to $235 billion through fiscal 2028.

U.S. stocks opened lower on Monday after President Trump rejected an Iranian peace proposal, sending crude oil prices higher and reviving inflation worries. Treasury yields rose in response. The Dow fell 180.1 points, the S&P 500 dropped 21.7 points, and the Nasdaq slid 133.0 points at the open.

US equity index futures fell on Monday, with S&P 500, Nasdaq 100 and Dow Jones futures down 0.4%, 0.8% and 0.5%. Stalled US-Iran nuclear talks helped push Brent crude above $108 a barrel, amplifying inflation concerns. Markets lifted the implied odds of a Federal Reserve rate increase in October to nearly 70% as Treasury yields hit multidecade highs, adding pressure on technology shares.

India’s Sensex fell 1,000 points and the Nifty slipped below 23,000. Brent crude traded above $107 a barrel and WTI above $95 a barrel. Higher oil prices helped push U.S. Treasury yields up, with the 10-year at 5.2% and the 30-year above 5.5%, both last seen in 2004. Fed funds futures have fully priced in at least one more rate hike by year-end, and the probability of a 25 basis point move in October stands at 68.1%.

U.S. technology shares rose 3% over a volatile week as borrowing costs paused their climb. Microsoft led the sector, ending at $516.17 for its highest close since November. Akamai Technologies said Anthropic will pay at least $11.6 billion over seven years to use its cloud infrastructure and software.

U.S. stocks closed higher on Friday, with the Dow up 469 points while the S&P 500 and Nasdaq added 0.49% and 0.47%. Microsoft and other AI-related technology shares led the advance. Akamai surged after agreeing to an $11.6 billion cloud services deal with AI company Anthropic. For the week, the S&P 500’s forward price-to-earnings ratio fell below 19, the lowest since 2023.

U.S. stocks closed modestly higher on Friday, with the Dow up 177 points and the S&P 500 gaining 0.2% as technology shares led. Qualcomm and Dell rose more than 5%, while Akamai jumped 7.3% after agreeing to an $11.6 billion multiyear deal with Anthropic. Oil prices eased from recent highs, though Brent crude stayed above $100 as U.S. and Iranian negotiators explored a phased path to end the conflict. The 10-year Treasury yield hovered around 5.2%, and a University of Michigan survey showed one-year inflation expectations rising to 4.6%.