#AnthropicSecondaryValuationHits1.2Trillion Trilli Overtaking OpenAI in a Market Driven by Scarcity

In a landmark moment for the AI industry, Anthropic has achieved a staggering $1.2 trillion implied valuation on secondary markets. This meteoric rise represents a **550% year-over-year increase** and places the company ahead of longtime leader OpenAI, which currently trades at approximately $908 billion on the same platforms.

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The Numbers Behind the Surge

Anthropic’s last primary fundraising round — a Series H completed in late May 2026 — officially set the company’s post-money valuation at $965 billion. The current secondary market pricing of $1.2 trillion represents a significant premium over that official figure. According to Javier Avalos, cofounder and CEO of Caplight (a secondary trading platform), Anthropic has become "the most sought-after company the venture secondary market has ever seen". Glen Anderson, CEO of Rainmaker Securities, confirms that transactions are being executed at the $1.2 trillion level on his platform as well.

The Scarcity Paradox: Almost No One Is Selling

Despite the astronomical valuation, completed transactions remain exceptionally rare. The fundamental issue is straightforward: secondary markets only function when employees or early investors are willing to part with their shares — and right now, almost none are.

Anderson captured the market dynamic perfectly: "The demand outstrips the supply in Anthropic so much that it's rare to get a trade done because no one's selling". He added: "If I could close everything I have in Anthropic in terms of demand, I would not be talking to you. I'd be on a beach right now".

With the stock soaring, holders see no reason to exit. The valuation, therefore, reflects what highly motivated buyers are willing to pay for tiny, illiquid pieces of a company — not necessarily what the company is fundamentally worth.

The SPV Problem and Shady Deals

Because direct shares are nearly impossible to acquire, most trades that do occur run through special-purpose vehicles (SPVs) — structures that pool capital from multiple buyers into a single transaction. However, Anthropic has publicly disavowed these arrangements. The company explicitly warns on its website: "Invest at your own risk: if someone offers you a way to participate, even on an indirect basis, in an investment in Anthropic, assume that it is invalid".

According to Avalos, "Most of the supply we have seen in the market has been via SPV structures the company is openly against," many of which come with high fees. Business Insider has also reported on "a bevy of shady deals with high fees and byzantine ownership structures" surrounding Anthropic secondary transactions.

Overtaking OpenAI — But Not Quite Yet

The $1.2 trillion figure puts Anthropic ahead of OpenAI on secondary markets. However, this gap may say less about Anthropic's fundamentals pulling away and more about market structure rewarding scarcity over growth.

That said, OpenAI has recently seen renewed momentum following the public rollout of its powerful GPT-5.6 model series, which includes the flagship model "Sol" and the budget-oriented "Terra". Despite this, buyer interest still heavily favors Anthropic — approximately five prospective Anthropic buyers for every two looking at OpenAI.

IPO on the Horizon

Anthropic confidentially filed an IPO prospectus with the Securities and Exchange Commission in early June. The company has given no specific timeline for going public, stating that the timing will depend on market conditions.

When Anthropic does go public, the scarcity that currently drives secondary market pricing will disappear. The real test will be whether a $1.2 trillion valuation holds up against an open market with unlimited supply, rather than a handful of desperate buyers fighting over vanishingly few shares.

What This Valuation Actually Means

It is crucial to understand that secondary pricing is not a primary valuation. These are illiquid, minority positions with no board rights and no guaranteed path to liquidity. The 550% year-over-year jump says more about how few shares are available at any price than about Anthropic's actual worth.

Founded in 2021 by former OpenAI executives Dario Amodei and Daniela Amodei, Anthropic has clearly captured the imagination of investors who view it as the crown jewel of the AI gold rush. Some interested buyers have even offered to exchange their homes for Anthropic stock — a dramatic illustration of how far demand has outrun supply.

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The bottom line: Anthropic's $1.2 trillion secondary valuation is a remarkable achievement that underscores the company's position as the most sought-after private AI startup in the world. But it is also a valuation built on extreme scarcity, speculative demand, and a market structure that the company itself cannot fully control. When the IPO finally arrives, we will discover whether the hype can survive the transition from scarcity to abundance.
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