Amazon has quietly built one of the most consequential stakes in artificial intelligence, and a looming Anthropic IPO could bring that value into sharp focus.
Wall Street is treating an Anthropic public listing as an imminent reality, with reports pointing to a $2 trillion valuation as early as October following a confidential S-1 filing earlier this summer.
Anthropic’s revenue growth has been staggering, with its annualized revenue run rate hitting $47 billion in May before climbing to $65 billion by July of this year.
At a $2 trillion market cap, Anthropic would be priced at nearly 31 times its July ARR figure, surpassing Space Exploration Technologies’ roughly $1.8 trillion June IPO as the largest listing in history.
A recent Motley Fool survey found that 70% of investors are considering buying the IPO of either Anthropic or its closest rival, OpenAI, reflecting enormous retail appetite for AI exposure.
Amazon (NASDAQ: AMZN) began its Anthropic relationship in September 2023, when Amazon Web Services forged a strategic partnership making AWS the primary platform for training and serving Anthropic’s generative model, Claude.
Amazon’s initial $4 billion commitment was completed by March 2024, followed by a second $4 billion investment in November 2024, at a time when private markets valued Anthropic at around $40 billion.
Anthropic’s valuation trajectory since then has been remarkable, moving from $61.5 billion in March 2025 to $183 billion by September 2025, then $380 billion after a Series G round, and finally $965 billion following a $65 billion Series H raise.
Prior to the Series H, Amazon invested an additional $5 billion and left the door open for another $20 billion contingent on commercial milestones, with Anthropic pledging more than $100 billion of AWS spend over 10 years and up to 5 gigawatts of capacity in return.
As of June 30, Amazon carried its Anthropic position at $190.4 billion, split between $97.9 billion in convertible notes and $92.5 billion of nonvoting preferred stock, implying roughly 19.7% ownership against the $965 billion valuation.
A 19.7% stake in a $2 trillion company would be worth approximately $394 billion, representing about 14% of Amazon’s current $2.8 trillion market capitalization.
For an investor putting $10,000 into Amazon today, roughly $1,430 of that position would reflect Anthropic exposure if the market fully credited the stake at a $2 trillion IPO price.
Because Amazon already carries the Anthropic position at $190 billion, the incremental step-up to $394 billion represents a gap of about $204 billion, translating to approximately 7% of Amazon’s total value not yet reflected in the carrying figure.
That means a successful Anthropic listing could add roughly $740 of look-through value to a $10,000 Amazon position, a meaningful but not transformative lift for existing shareholders.
The deeper story is strategic: Amazon secured a flagship cloud customer, a live showcase for its Trainium and Inferentia chips, and a significant equity stake in the model layer of generative AI through a single relationship.
Anthropic’s pledge to spend $100 billion on AWS is the structural anchor of the trade, while Amazon’s equity upside at a potential $2 trillion IPO is the headline number that investors are now watching closely.
