Anthropic leads 2026 AI IPO race as prediction markets price 90% listing odds

Anthropic has emerged as the definitive frontrunner for an initial public offering among the most anticipated private artificial intelligence companies, with prediction markets assigning approximately 90% probability to a listing in 2026. This high level of market conviction follows the company’s confidential filing of a draft S-1 registration statement with the US Securities and Exchange Commission on June 1, 2026. The filing marks a significant procedural milestone, moving the company from private speculation into the formal regulatory review phase required for a public debut.

The company’s valuation trajectory has accelerated rapidly, with its most recent private mark established at $965 billion post-money during a Series H-1 funding round in May 2026. Public-market exposure to this valuation lift is already visible in the performance of major technology conglomerates. Amazon recorded $16.80 billion in pretax gains on its Anthropic stake in the first quarter of 2026, contributing to earnings per share of $2.78 against a consensus of $1.73. Alphabet similarly reported $36.91 billion in unrealised equity gains in the same period, with the Anthropic investment cited as a major component of its portfolio performance.

In the broader hierarchy of anticipated AI and defence technology listings, Databricks ranks second, with prediction markets from Kalshi pricing a 2027 debut at roughly 41% probability. Despite long-standing rumours of an impending public offering, Databricks has not yet filed a confidential S-1. The company’s chief executive has previously characterised 2026 as a challenging environment for public listings, citing the monopolisation of institutional capital by massive debuts from competitors such as OpenAI and SpaceX.

Anduril trails the field with only a 7% probability assigned to a 2027 listing by Kalshi traders. The defence-tech firm lacks both a draft registration statement and a public underwriting syndicate, factors that prediction markets view as essential precursors to an IPO. While Palantir Technologies serves as the closest listed proxy due to its shared defence-AI customer base, Anduril has not provided the concrete filing activity that has propelled Anthropic to the top of the order.

Analysts note that the ordering of these potential listings tracks closely with available data points, with Anthropic’s near-90% implied probability for a 2026 listing standing in stark contrast to the lower conviction surrounding its peers. Catalysts for Anthropic now centre on the resolution of SEC comment cycles, the selection of underwriters, and equity-market volatility in the second half of the year. A delayed regulatory review or a sharp risk-off move in equities could compress these odds, while a confidential filing from either Databricks or Anduril would materially alter the competitive landscape.