Microsoft shares fell 2.24% on Wednesday, extending a nearly 2.2% decline from the prior session, even as the broader technology sector staged a sharp rebound. The Nasdaq Composite climbed more than 2% and most large-cap tech names traded higher, making Microsoft's weakness a notable outlier.
The divergence traced back to Anthropic, which on Tuesday unveiled a set of workplace products that put it in more direct competition with Microsoft's Office franchise. The launch raised fresh questions about whether AI model developers are moving from supplying technology to competing with the software incumbents that license it.
Anthropic takes aim at Excel
Anthropic introduced Claude Sheets and Claude Whiteboards in beta, while making Claude Dashboards generally available as Claude Data. Claude Sheets is the most direct challenger to Microsoft Excel, allowing users to build and edit workbooks through simple prompts, with support for multiple tabs, formulas, formatting and drop-down menus.
The tool also supports collaboration, change tracking and exports in XLSX or CSV formats, and connects with services including Airtable, Asana, monday.com and Smartsheet. Claude Whiteboards targets team brainstorming and idea organization, while Claude Data lets users build and share interactive dashboards. All three are available to paid Claude subscribers.
The competitive overlap is complicated by the two companies' financial ties. Microsoft has agreed to buy roughly $1 billion of Anthropic shares through a private placement tied to the AI firm's upcoming IPO, and Anthropic has committed to spending billions on Microsoft's Azure cloud services.
Wall Street analysts stay bullish
Despite the competitive headlines, sell-side analysts continue to see substantial upside in Microsoft. Evercore ISI reiterated a Buy rating on Wednesday with a $635 price target, acknowledging that investor concerns are understandable but arguing the company remains well positioned. The firm noted that Claude could compete in how people accomplish their work, but that Microsoft remains deeply embedded in the infrastructure that enables it.
RBC Capital's Rishi Jaluria reaffirmed a Buy rating on November 10 with a $640 target, citing Microsoft's strong recent fiscal results and the growth of its Azure cloud business. Together, the calls suggest analysts do not yet view Anthropic's new products as a fundamental threat, given Microsoft's entrenched competitive advantages.
Data center expansion faces hurdles
Separately, Microsoft is wrestling with infrastructure constraints as it races to expand AI computing capacity. Reuters reported the company has urged the Trump administration to reconsider a proposed restriction on imports of new Chinese optical transceivers used in data centers. Microsoft warned that limiting access to those components could delay construction because domestic suppliers currently lack sufficient capacity.
According to Cleanview data, the company has 35 data centers under construction in the United States and another 134 planned. The scale of that buildout underscores how dependent Microsoft's AI ambitions are on both component supply and cloud demand.
For investors, Wednesday's move reflects a tug-of-war between near-term competitive noise and longer-term fundamentals. The stock's decline came on a day when the sector rallied, but analyst targets remain well above current levels, and the Azure growth story that has driven the bull case is intact.
This article is for informational purposes only and does not constitute financial advice.
