(Updates with market moves at the end of the day, and other changes, if any.)
Wall Street's equity benchmarks fell Monday as warnings from Anthropic and OpenAI on increasing safety risks tied to artificial intelligence triggered a selloff in the technology sector.
The tech-heavy Nasdaq Composite declined 0.6% to close at 26,186.41. The S&P 500 dropped 0.5% to 7,619.98, while the Dow Jones Industrial Average dipped 0.3% to 52,421.20. Most sectors ended in the red, led by tech, while communication services paced the gainers.
Dario Amodei, chief executive of AI chatbot Claude maker Anthropic, called on the industry Saturday to slow the pace at which it advances AI model capabilities. OpenAI CEO Sam Altman and Tesla (TSLA) and SpaceX (SPCX) CEO Elon Musk supported Amodei's call.
OpenAI's initial public offering will not take place this year, Altman separately said in a Fortune Magazine interview, citing the need for safety-related work, according to Bloomberg News.
Shares of tech bellwether Nvidia (NVDA) were the third-worst performer on the Dow, down 3.4%. Advanced Micro Devices (AMD), Micron Technology (MU), SanDisk (SNDK), Intel (INTC) and Qualcomm (QCOM) also closed lower.
US President Donald Trump sought to allay those AI safety fears, calling them a "hoax."
"AI taking over the world, destroying humanity, and all other things bad, is a hoax," he said in a social media post on Monday.
In an earlier post on Truth Social, Trump said that "there is a sick conspiracy going on against AI and data centers, and the only one that is happy about it is China."
West Texas Intermediate crude oil was up 1.7% at $101.76 a barrel in Monday late-afternoon trade, while Brent rose 1.6% to $106.23, both trading off the day's peaks.
The Islamic Revolutionary Guard Corps said it destroyed an advanced US MQ-1 drone over the Strait of Hormuz, a key crude and energy chokepoint, CNBC reported.
A meeting to discuss the future of the strait, scheduled for Monday with Tehran and Gulf states, has been postponed, Omani Foreign Minister Badr Albusaidi said on X. The postponement comes following Yemen's Iran-aligned Houthis' attack on Saudi Arabia last week.
Trump said Monday that Iran "wants to make a deal, quickly and badly."
"I will determine whether or not the USA will choose to engage," Trump said in a social media post.
Treasury yields were higher, with the two-year rate rising 1.4 basis points to 4.66% and the 10-year rate up 1.2 basis points at 4.99%.
The Federal Reserve is expected to raise interest rates by 25 basis points at this week's policy meeting, with its latest "dot plot" likely signaling another hike later this year, UBS Securities said in a note. The Federal Open Market Committee kicks off its two-day meeting on Tuesday.
Markets are currently pricing in a 95% probability that the Fed will raise the benchmark lending rate by 25 basis points on Wednesday, according to the CME FedWatch tool. The remaining odds point to another central bank pause.
In other company news, Baldwin Insurance (BWIN) has agreed to be acquired and taken private by a consortium that includes the family investment firm of Dell Technologies (DELL) Chief Executive Michael Dell, in a deal worth $7.7 billion. Baldwin shares jumped 7.9%.
Spot gold lost 1.5% to $4,285.73 per troy ounce, while silver shed 2.6% to $63.48 per ounce.



