{"id":224269,"date":"2026-09-15T09:59:30","date_gmt":"2026-09-15T09:59:30","guid":{"rendered":"https:\/\/quixnet.net\/wpinstance\/stocks-slip-but-traders-largely-shake-off-warnings-that-ai-industry-should-slow-down-nbc-news\/"},"modified":"2026-09-15T09:59:30","modified_gmt":"2026-09-15T09:59:30","slug":"stocks-slip-but-traders-largely-shake-off-warnings-that-ai-industry-should-slow-down-nbc-news","status":"publish","type":"post","link":"https:\/\/quixnet.net\/wpinstance\/stocks-slip-but-traders-largely-shake-off-warnings-that-ai-industry-should-slow-down-nbc-news\/","title":{"rendered":"Stocks slip, but traders largely shake off warnings that AI industry should slow down – NBC News"},"content":{"rendered":"

news Alerts
There are no new alerts at this time
U.S. equity markets shook off warnings Monday from artificial intelligence CEOs who had called for a slowdown<\/a> in the pace of developing the revolutionary technology<\/a>.
Early on in the trading session, the Nasdaq 100 index, which tracks the 100 largest nonfinancial companies traded on the Nasdaq exchange, fell as much as 1.8%. The broader Nasdaq Composite index fell as much as 1.3% and the S&P 500 fell almost 1%.
But a rally in software and cybersecurity stocks brought major indexes off their lows. By the end of the trading session, the Nasdaq Composite closed lower by only 0.56%. The S&P 500 fell 0.48%.
President Donald Trump downplayed the warnings in more than a half-dozen posts on social media throughout the day, signaling to investors that the odds of any serious action on those issues at the federal level were slim.
\u201cAI taking over the World, destroying Humanity, and all other things bad, is a HOAX,\u201d Trump wrote, <\/a>comparing warnings on AI to the investigations into his ties to Russia and the two impeachments of his first term in office. AI \u201cwill not be stopped\u201d during his presidency, he wrote.
There were several significant declines on the day. Shares of Nvidia, the world\u2019s most valuable public company, fell 3.36%. Chipmaker Arm Holdings fell 9.7%, while peer ASML fell 7.2%. AMD and Intel slid more around 5%. Applied Materials, a key supplier to chip companies, also sank 7%. Micron Technologies tumbled 5.2%. CoreWeave, a key supplier of data centers and cloud computing to AI firms, fell 6.7%.
The Dow Jones Industrial Average closed down just 152 points, but Dow component Caterpillar, which is involved in the buildout of AI data centers, tumbled 4.2%. The Philadelphia Semiconductor Index plunged 5.8%, its worst day since July.
OpenAI CEO Sam Altman told Fortune magazine Saturday<\/a> that his company would not be going public this year. \u201cGiven everything happening with safety, right now would be an ill-advised moment to go public,\u201d he said.
OpenAI and Anthropic\u2019s eventual public offerings are expected to be among the largest of all time.
\u201cFor markets, the key question is whether this is the first sign that the extraordinary AI investment cycle might eventually moderate,\u201d said Jim Reid, Deutsche Bank global head of macro research.
\u201cFor now, that seems unlikely. The competitive race between companies and countries remains intense, and it\u2019s difficult to imagine firms voluntarily stepping back while rivals continue to push ahead.\u201d
Overnight, worries about slowing the AI industry hit South Korea\u2019s benchmark Kospi index, which sharply fell more than 3%. That fall was primarily due to selling in AI memory firms. Samsung Electronics sold off by 5% and SK Hynix plunged more than 7.3%.
In Tokyo, shares of OpenAI investor SoftBank Group fell 10.7%.
The dramatic market moves were set in motion on Saturday, when Anthropic CEO Dario Amodei wrote<\/a> in a public post that AI companies \u201cmust slow the pace at which we improve the capabilities of AI models.\u201d
\u201cAI brings risks, and because it is such a powerful technology, these risks are serious,\u201d he wrote, and include \u201closing control of AI systems, misuse of AI for cyberattacks and bioterrorism, and serious economic disruption.\u201d
Shortly after Amodei\u2019s post, Altman wrote, \u201cI agree with Dario.\u201d Tech billionaire Elon Musk wrote, \u201cDario is right.\u201d
Shares of Musk\u2019s SpaceX, which owns artificial intelligence developer xAI, fell 2%.
Altman later added in another post: \u201cWhen we talk about \u2018pacing\u2019, we do not mean \u2018stopping\u2019.\u201d He said that \u201cprogress has been rapid and will continue to be.\u201d
Amodei expanded on his thoughts Sunday. Speaking to CBS\u2019 \u201cSunday Morning,\u201d <\/a>he warned that there are \u201creal dangers.\u201d
\u201cI don\u2019t think I fully just appreciated what it would actually be like when the progress was as fast as it was,\u201d he said. \u201cIt doesn\u2019t mean we need to panic today. It doesn\u2019t mean we need to shut it all down. But I would say it\u2019s a warning sign.\u201d
The Chinese Foreign Ministry overnight dismissed calls <\/a>for a slowdown from the U.S. A spokesperson said \u201cfearmongering\u201d would only \u201cdisrupt the process of global AI governance and serve no one\u2019s interests.\u201d<\/p>\n

President Donald Trump sounded a similar tone over the weekend. \u201cI think you have a lot of very negative forces that are bringing it up that shouldn\u2019t be bringing it up and they\u2019re bringing up things that won\u2019t happen,\u201d he said Sunday, referring to putting guardrails on the industry.
Still, selling in AI companies continued to spread through the European trading session, where Germany\u2019s DAX index closed down 0.5% and France\u2019s CAC 40 index dropped 0.8%. The biggest decliners across European markets were AI-related.
While AI worries were initially the primary driver of selling Monday, stocks are also dealing with the prospect of a Fed rate hike Wednesday.
U.S. core inflation, which does not count food or energy costs, on Friday rose more than expected<\/a>, which many viewed as the signal for the Federal Reserve to hike rates. Market odds for a hike currently sit at about 85%.
At the same time, bond yields have surged this year and, on Monday, the U.S. 30-year Treasury bond yield reached 5.38%, its highest level since 2007.
The 10-year Treasury yield, which heavily influences consumer borrowing rates, rose to as high as 5.014%, its highest level since 2023 and very near its highest level since late 2007.
However, just like stocks, yields sharply reversed late in the morning and by midday were back to their lowest levels since Friday.
The rise in bond yields<\/a> comes as oil, gas and diesel prices remain sharply elevated. <\/a>It is also due to what many view as a crisis of credibility at the Fed<\/a> and unusual interventions<\/a> in markets from the Treasury Department.
\u201cOil and AI are back in focus,\u201d HSBC\u2019s chief multi-asset strategist Max Kettner said Monday in a note to the bank\u2019s clients. However, he said, \u201ccalls for a slower AI build-out and resulting fears for the tech sector are overblown in our view.\u201d
Tech stocks have become highly sensitive to interest rates as those firms tap the public debt markets to raise hundreds of billions of dollars to expand AI data centers around the world. Even small rises in interest rates can cause billions of dollars in extra costs.
Steve Kopack is a senior reporter at NBC News covering business and the economy.
© 2026 NBCUniversal Media, LLC<\/p>\n

source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

news AlertsThere are no new alerts at this timeU.S. equity markets shook off warnings Monday from artificial intelligence CEOs who had called for a slowdown in the pace of developing the revolutionary technology.Early on in the trading session, the Nasdaq 100 index, which tracks the 100 largest nonfinancial companies traded on the Nasdaq exchange, fell […]<\/p>\n","protected":false},"author":1,"featured_media":224270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-224269","post","type-post","status-publish","format-standard","has-post-thumbnail","category-us","entry"],"_links":{"self":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts\/224269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/comments?post=224269"}],"version-history":[{"count":0,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts\/224269\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/media\/224270"}],"wp:attachment":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/media?parent=224269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/categories?post=224269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/tags?post=224269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}