Anthropic's IPO filing is doing more than sketching out the financials of one very large AI company. It is also putting a spotlight on the exchange-traded funds that give ordinary investors a way to own a piece of the Claude maker before it ever trades on a public exchange.

The company publicly filed its S-1 registration statement with the SEC on Monday. The headline numbers: $16.3 billion in revenue for the six months ended June 2026, up sharply from $4.6 billion for the entirety of 2025. That is a lot of growth in a hurry, even by AI standards.

But the spending side tells its own story. Anthropic shelled out nearly $9 billion on AI infrastructure during the first half, exceeding its $7.3 billion expenditure for all of 2025. The filing also highlights the scale of the company's long-term computing needs, disclosing hundreds of billions of dollars in cloud and infrastructure commitments. That could be a significant business opportunity for the technology companies supplying its computing capacity.

LAZR Leads the Pack on Direct Anthropic Exposure

The Tema Photonics & Optical ETF (LAZR) offers one of the clearest routes to pre-IPO Anthropic exposure. The fund invests in companies involved in optical networking and data movement for AI infrastructure, while holding Anthropic through a special purpose vehicle (SPV).

LAZR's Anthropic position accounted for 10.47% of the portfolio. The SPV structure gives the fund indirect exposure to the private company rather than ownership of publicly traded Anthropic shares. In plain English: you are not buying Anthropic stock, you are buying a fund that owns a slice of a vehicle that owns Anthropic. That distinction matters when the IPO eventually prices.

Other funds reporting Anthropic exposure include the Alger Concentrated Equity ETF (CNEQ), the Alger AI Enablers & Adopters ETF (ALAI), the KraneShares Public-Private AI & Technology ETF (AGIX), the Alger 35 ETF (ATFV), the Tema Electrification ETF (VOLT) and the iShares A.I. Innovation and Tech Active ETF (BAI). Their reported Anthropic weights ranged from 1.28% for BAI to 5.28% for CNEQ.

Semiconductor ETFs Offer a Different AI Trade

Investors seeking exposure to the infrastructure behind Anthropic's expansion can also examine the VanEck Semiconductor ETF (SMH) and the iShares Semiconductor ETF (SOXX). Both provide exposure to chipmakers that support AI computing, although neither should be confused with a fund holding Anthropic directly.

Anthropic's S-1 describes a multi-chip computing architecture using Nvidia Corp (NVDA) GPUs, AMD (AMD) GPUs, Amazon Web Services' Trainium chips and Google's tensor processing units. This diversified approach could create demand across several parts of the semiconductor and cloud ecosystem.

Here is the catch, and it is a big one. Rising spending does not automatically translate into higher profits for suppliers or stronger ETF returns. Anthropic reported an $80.7 billion first-half net loss, largely reflecting accounting charges, while its infrastructure spending and customer concentration remain important risks.

For ETF investors, the IPO presents two distinct opportunities to assess: funds offering indirect exposure to Anthropic itself and funds positioned to benefit from the infrastructure buildout. Both carry risks if AI demand, valuations or spending expectations change. The AI boom has been a wonderful story so far. The Anthropic filing is the next test of whether the numbers keep up with the narrative.