The biggest development was the public filing by generative artificial intelligence company Anthropic, which is preparing for a potential offering estimated to exceed $75 billion. The transaction could surpass SpaceX as the largest IPO in history, placing the company at the center of attention as investors assess the next major wave of technology listings.

Anthropic Prepares for Potential Record-Breaking IPO

Anthropic PBC filed its 421-page registration statement on Monday, putting its planned Nasdaq IPO on track for a launch during the week of November 9, following the US midterm elections. Pricing is expected during the week of November 16.

The company’s filing provides significant insight into its growth, financial performance, governance structure, and infrastructure commitments. Revenue increased more than 14 times year over year during the June quarter, reaching $11.6 billion. Anthropic also reported nearly $1 billion in operating income for the period, demonstrating substantial operating scale alongside its rapid expansion.

However, the filing also highlights several considerations for prospective investors. Customer concentration remains significant, with two customers accounting for a combined 20% of first-half revenue. Approximately 48% of revenue came through cloud marketplaces operated by Google, Amazon, and Microsoft.

Anthropic’s governance structure also differs from that of a conventional publicly traded company. As a public benefit corporation, it must balance its stated mission with profitability. An independent trust elects most of the board, while a single share held by a co-founder controls 50.1% of the voting power. This structure could limit the influence of public shareholders following the listing.

Infrastructure commitments represent another major consideration. Anthropic has committed to spending more than $600 billion on computing and infrastructure through 2045, making continued business expansion important to its ability to support those obligations.

The company also plans a staggered lock-up release schedule involving 22 distinct release events. These arrangements could introduce additional share supply and potential selling pressure during the months following the IPO. At the same time, the filing suggests that Anthropic could become eligible for inclusion in major index funds relatively quickly.

Anthropic describes its potential market opportunity as extending across more than $40 trillion in economic value associated with knowledge workers. However, the filing does not provide a conventional total addressable market estimate.

Latest IPOs Deliver Mixed Results

Three IPOs priced during the week, although only two began trading. Nigerian-focused fintech platform OPay announced that it had raised $304 million, but the shares did not begin trading on Friday, leaving uncertainty surrounding the status of the transaction.

The offering had attracted substantial cornerstone investor interest, with indications covering nearly 90% of the deal.

Two biotechnology companies, Aspen Neuroscience (ASPE) and Bambusa Therapeutics (BBTX), began trading but finished slightly below their respective IPO offer prices. Meanwhile, Georgia Banking Company (GBC) completed a direct listing, providing another example of an alternative route to public-market access.

The mixed reception suggests that strong investor commitments before an offering do not necessarily translate into immediate secondary-market strength.

Market Volatility and Economic Conditions

Another increase in market volatility weakened expectations for a broader IPO recovery ahead of Anthropic’s anticipated listing. The CBOE Volatility Index, or VIX, was approaching 20 during the week.

Investors also navigated several competing economic signals, including strong GDP growth and consumer spending, mixed corporate earnings, and the Federal Reserve’s decision to leave interest rates unchanged ahead of the US midterm elections.

These conditions contributed to a cautious environment for companies considering public listings, particularly those seeking substantial valuations.

IPO Market Winners and Losers

Among recently listed and publicly traded IPO companies, BrightSpring Health Services led the week’s leaderboard, gaining 11.3%. The home-based care provider benefited from a third-quarter earnings beat and an improved outlook, positioning it as a relatively defensive performer during a volatile period.

Reddit was the week’s weakest performer, declining 36.4% despite reporting better-than-expected third-quarter earnings. The company warned that Google’s AI-generated search summaries were reducing referral traffic and also issued disappointing guidance.

The contrast between BrightSpring’s performance and Reddit’s decline illustrates how company-specific operating results and forward guidance continued to influence investor positioning.

Closing Insights

The US IPO market remains selective as investors balance economic uncertainty, elevated volatility, and expectations surrounding one of the largest potential technology offerings in market history.

Anthropic’s planned IPO represents a significant test of public-market appetite for high-growth artificial intelligence businesses. Its revenue expansion and operating income are notable, but substantial infrastructure commitments, customer concentration, governance arrangements, and staggered lock-up releases will require careful consideration.

Meanwhile, the mixed performance of recent listings and the decline in the IPO Index suggest that a broader recovery has yet to establish itself. The coming weeks will be important in determining whether Anthropic can attract sufficient demand to support its proposed valuation and potentially reset expectations for the wider IPO market.