US stocks advanced on Monday as Anthropic’s highly anticipated initial public offering (IPO) filing renewed investor enthusiasm for artificial intelligence companies. Meanwhile, Wall Street prepared for a crucial Federal Reserve interest rate decision and a busy week of corporate earnings.
The rally followed recent weakness in AI-related stocks, as investors reassessed the industry’s growth potential and the enormous financial commitments required to expand computing infrastructure.
By 11:50 a.m. Eastern Time, the Dow Jones Industrial Average had gained 139.22 points, or 0.27%, to 52,354.38.
The S&P 500 climbed 0.81% to 7,685.49, while the technology-heavy Nasdaq Composite advanced 1.10% to 26,240.04.
Anthropic IPO Filing Reignites Wall Street’s AI Optimism
Anthropic, the artificial intelligence company behind the Claude chatbot, publicly submitted its IPO registration documents to the US Securities and Exchange Commission.
The filing represents an important step toward a potential stock market debut for one of the world’s most prominent private AI companies.
Anthropic plans to list its shares on the Nasdaq under the ticker symbol ANT, although the final offering price and number of shares have not yet been determined.
The announcement encouraged renewed buying across AI-related stocks, particularly semiconductor manufacturers, cloud computing providers and data center operators.
However, the filing also revealed substantial financial challenges associated with developing and operating advanced artificial intelligence systems.
Anthropic Reports $80.7 Billion Loss Despite Revenue Surge
Anthropic’s IPO documents revealed rapid revenue growth alongside significant accounting losses.
The company generated approximately $16.3 billion in revenue during the first six months of 2026, reflecting strong demand for its artificial intelligence products and services.
Nevertheless, Anthropic reported a net loss of approximately $80.7 billion over the same period.
Importantly, most of that loss resulted from noncash accounting adjustments related to the increasing fair value of convertible debt and other financial instruments.
Approximately $72.4 billion was attributed to these valuation-related adjustments rather than direct operating expenditures.
The company’s underlying operating loss was considerably smaller, at approximately $693 million.
These figures highlight the importance of distinguishing accounting losses from the actual expenses involved in running an AI business.
Investors will now evaluate whether Anthropic can sustain its rapid revenue expansion while improving profitability and managing its substantial infrastructure commitments.
Anthropic Could Command a $1.5 Trillion Valuation
Market speculation suggests that Anthropic could pursue one of the largest initial public offerings in stock market history.
Some investors have reportedly valued the company at approximately $1.5 trillion, below earlier estimates approaching $2 trillion.
The changing valuation expectations reflect growing scrutiny of AI business models, capital requirements and long-term profitability.
However, the company’s final IPO valuation will depend on investor demand, market conditions and the eventual offering terms.
According to John Murillo, Chief Business Officer at B2BROKER, Anthropic’s decision to pursue a public listing was largely anticipated.
Nevertheless, the official filing could strengthen confidence in AI-related valuations.
Murillo also emphasized that an IPO announcement alone does not establish whether a company’s valuation is justified.
Instead, investors will need to assess revenue growth, operating costs and the ability to generate sustainable profits.
Nvidia, AMD and AI Infrastructure Stocks Rally
The announcement contributed to renewed buying interest across several major artificial intelligence companies.
Nvidia shares gained nearly 3%, while Microsoft and Amazon also moved higher during Monday’s session.
Advanced Micro Devices (AMD) and Broadcom advanced approximately 2.5% and 3%, respectively.
Memory chipmaker Micron Technology climbed around 3%, benefiting from stronger sentiment toward semiconductor stocks.
Meanwhile, cloud infrastructure companies CoreWeave and Nebius Group recovered from earlier weakness, rising approximately 5.7% and 2.3%.
Data center operators Applied Digital and IREN also recorded gains of roughly 1% and 3%, respectively.
The rally extended into the data storage industry, with SanDisk, Western Digital and Seagate Technology advancing approximately 2.5% each.
Zoom Communications, an early investor in Anthropic, gained around 1.5%.
These movements highlight how developments involving a leading AI company can influence businesses throughout the broader technology supply chain.
AI Infrastructure Spending Remains a Major Investor Concern
Despite renewed enthusiasm, investors remain cautious about the financial sustainability of the artificial intelligence investment boom.
Technology companies are spending enormous amounts on advanced computing equipment, data centers and supporting infrastructure.
In many cases, these investments are financed partly through additional borrowing, raising concerns about debt levels and funding costs.
Elevated interest rates have added pressure by making financing more expensive.
Consequently, investors are increasingly demanding evidence that AI infrastructure spending will translate into stronger revenues and sustainable profitability.
Anthropic’s potential stock market debut could also influence capital allocation across the technology sector.
A successful listing might establish new valuation benchmarks for AI companies and their infrastructure suppliers.
However, it could also attract investment capital away from established technology stocks as investors seek direct exposure to Anthropic.
Microsoft, Alphabet and Amazon Earnings Take Center Stage
Wall Street is preparing for a particularly important week of corporate earnings reports.
Alphabet and Microsoft are scheduled to announce their quarterly results on Wednesday, followed by Amazon on Thursday.
Their financial statements could provide valuable insights into cloud computing demand, artificial intelligence adoption and infrastructure investment returns.
Investors will pay particular attention to whether substantial AI spending is generating corresponding improvements in revenue and earnings.
Other major companies reporting this week include Visa, Boeing and Coca-Cola, whose results are scheduled for Tuesday.
Meanwhile, Verizon attracted investor attention after raising its forecast for postpaid phone subscriber growth in 2026.
The telecommunications company also announced an AI infrastructure agreement with Amazon Web Services valued at more than $2 billion.
Together, these developments underscore the growing influence of artificial intelligence investment across multiple industries.
Federal Reserve Decision Could Influence Stock Market Rally
Beyond corporate earnings, investors are closely monitoring the Federal Reserve’s upcoming monetary policy announcement.
The central bank will begin its two-day meeting on Tuesday, October 27, with an interest rate decision expected Wednesday.
Financial markets widely anticipate that policymakers will leave benchmark interest rates unchanged.
The expected pause follows September’s first rate increase since 2023.
However, recent inflation data have reinforced concerns that monetary policy may need to remain restrictive.
According to CME FedWatch probabilities cited in the report, traders assigned approximately a 73% chance to another rate increase at the Federal Reserve’s December meeting.
As a result, attention will focus on Chair Kevin Warsh’s press conference for indications about future monetary policy.
Analysts at Deutsche Bank expect the Fed to maintain a relatively restrictive outlook, even if policymakers decide against an immediate increase.
Any unexpected shift in interest rate expectations could influence equity valuations, particularly among growth-oriented technology companies.
US GDP and Inflation Reports Add to Market Uncertainty
Several important economic releases could also affect investor sentiment this week.
The advance estimate of third-quarter US gross domestic product will provide an updated assessment of economic growth.
Meanwhile, September’s Personal Consumption Expenditures (PCE) price index will offer additional insight into inflation trends.
The PCE index is closely monitored by Federal Reserve officials when evaluating monetary policy.
Stronger-than-expected inflation readings could increase expectations for additional interest rate hikes.
Conversely, softer inflation data might ease concerns about prolonged monetary tightening.
These economic indicators will be particularly important for technology stocks, whose valuations can be sensitive to changes in borrowing costs and long-term interest rate expectations.
Oil Prices Decline as Iran Diplomatic Efforts Continue
Energy markets also influenced Wall Street sentiment as crude oil prices retreated on Monday.
Brent crude futures declined approximately 0.7% to $115.95 per barrel, while US West Texas Intermediate crude fell 1.9% to $101.31.
The pullback followed reports that Qatari mediators had traveled to Tehran over the weekend to explore ways of reducing tensions between Iran and the United States.
However, geopolitical risks remained elevated amid speculation about possible renewed US military operations against Iran.
President Donald Trump suggested on Sunday that Washington was approaching an important decision over whether to pursue a diplomatic agreement or take further military action.
Meanwhile, attacks involving Yemen’s Iran-backed Houthi movement and Saudi Arabia continued to raise concerns about energy infrastructure and regional oil supplies.
Further escalation could push crude prices higher, potentially reinforcing inflation risks and complicating the Federal Reserve’s policy outlook.
Wall Street Outlook Hinges on AI Earnings and Fed Guidance
The latest stock market rally reflects renewed optimism surrounding artificial intelligence, supported by Anthropic’s highly anticipated IPO filing.
However, investors face several important developments that could influence market direction over the coming days.
Corporate earnings from major technology companies will provide fresh evidence about the financial returns generated by AI investments.
At the same time, the Federal Reserve’s interest rate decision and upcoming inflation figures could reshape expectations for monetary policy.
Geopolitical developments in the Middle East and the approaching US midterm elections add further uncertainty.
Analysts at Neuberger expect market volatility to remain elevated as these developments unfold.
For now, Anthropic’s IPO filing has provided another catalyst for AI-related stocks, although the sustainability of the broader market rally will depend on earnings performance, economic conditions and investor confidence.
