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TSMC Will Put Up to $1 Billion Into Anthropic and OpenAI
TSMC's board approved buying up to $500 million of Anthropic shares at its IPO price and $500 million of OpenAI preferred stock on November 10, 2026.
The world's biggest chip foundry is becoming a shareholder in two of its largest end customers. In a filing with the US Securities and Exchange Commission dated November 10, 2026, Taiwan Semiconductor Manufacturing Co. said its board had approved investments in "Anthropic, PBC at its per share initial public offering price" and in "OpenAI Group PBC in an amount not to exceed US$500 million to acquire OpenAI's preferred stock." The Anthropic purchase is also capped at $500 million, so the total is up to $1 billion.
The same board meeting approved up to $500 million to set up a new investment company for strategic investments in semiconductors and the related ecosystem, capital appropriations of about $40.9 billion for capacity, packaging and research, and a third-quarter cash dividend of NT$9.0 a share, payable on April 8, 2027. TSMC shares rose 2.19% in Taipei on Wednesday, CNBC reported.
The sums are small next to TSMC's balance sheet, and next to the deals themselves: Anthropic is seeking to raise up to $64.4 billion in its IPO, with a separate $26 billion private placement, at a price range of $70 to $78 a share. But the direction matters. TSMC manufactures the chips that Nvidia, AMD, Google and Amazon sell or rent to AI developers, so its revenue already depends on how much those developers spend. Owning equity in them adds a second exposure to the same trend.
That is the pattern that has drawn scrutiny across the industry this autumn. Suppliers investing in their customers, as Nvidia and AMD have done with Meta this autumn, make it harder for investors to judge how much demand is independent and how exposed companies are to one another. Nothing in TSMC's filing suggests the investments are tied to orders, and at $1 billion they are a rounding error for a company that sets aside $40.9 billion of capital spending in a single board meeting.
For anyone following the Anthropic listing, TSMC's commitment is one more sign of strategic demand for the shares at the IPO price. It also means that two of the companies most exposed to AI spending, the chipmaker and the model developer, will now share a piece of the same outcome.
Sources: SEC — TSMC Form 6-K, board of directors meeting resolutions (Nov 10, 2026); CNBC — Stock market news for Nov. 11, 2026 (live updates)