Amazon Already Books the OpenAI and Anthropic IPO

Amazon recorded $53.4 billion of pre-tax other income in the second quarter, primarily from Anthropic, while OpenAI and Anthropic still have no public ticker. That paper gain sat beside $27.5 billion of operating income.

Sarah Guo, founder of Conviction Partners, spent an August 31 segment of “Making Money” on an AI IPO pipeline built around those two labs. Both firms had already filed confidential papers. Amazon had already marked the private round through earnings.

When OpenAI and Anthropic Filed Their S-1 Papers

Anthropic, PBC, confidentially sent a draft S-1 to the SEC on June 1, 2026. OpenAI submitted a confidential S-1 on June 8. Share counts and prices are unset. Anthropic said any offering depends on market conditions. OpenAI said timing may be a while.

That is the actual pipeline. It is not a rumor about whether the companies might someday hire bankers. It is two Rule 135 notices, seven days apart, with no public prospectus behind either one.

THE AI IPO CLOCK SO FAR

1. October 28, 2025: OpenAI finishes its public-benefit restructure. The OpenAI Foundation holds about 26 percent, worth about $130 billion at that valuation, and appoints the Group board. Microsoft holds about 27 percent.
2. March 31, 2026: OpenAI closes 122 billion in committed capital at an $852 billion post-money valuation.
3. April 20, 2026: Anthropic and Amazon expand their pact to as much as 5 gigawatts of capacity and more than $100 billion of AWS spend over ten years.
4. May 2026: Anthropic’s Series H sets a $965 billion primary mark on a $65 billion round.
5. June 1 and June 8, 2026: Anthropic, then OpenAI, file confidential S-1 drafts.
6. July 30, 2026: Amazon reports second-quarter results that include the Anthropic mark.
7. August 19, 2026: OpenAI chief financial officer Sarah Friar tells staff the firm “will be a public company in 2027,” or sooner only “if our business continues to inflect.”

September, the month some bankers had circled for an OpenAI debut, arrived with no public S-1 and no pricing date. The option both companies bought in June is still an option.

Amazon Booked $53.4 Billion Before Any Ticker

Amazon’s second-quarter release, for the period ended June 30, 2026, is the first audited look at what a private Anthropic round does to a public income statement. Net sales were $200.6 billion, up 20 percent. Operating income was $27.5 billion, up 43 percent. Net income was $62.6 billion, or $5.75 a diluted share.

Inside that net income line is 53.4 billion of other income, pre-tax, “primarily from our investments in Anthropic.” The mark is almost twice Amazon’s operating profit for the quarter. It is not cash. It is not AWS. It is an accounting gain on a private company that has not listed.

WHAT AMAZON REPORTED FOR THE QUARTER

• Net income: $62.6 billion, or $5.75 a share, against $18.2 billion, or $1.68, a year earlier.
• Other income: $53.4 billion pre-tax, primarily from the Anthropic stake.
• Operating income: $27.5 billion, up 43 percent from $19.2 billion.
• AWS sales: $42.2 billion, up 37 percent, a $169 billion annualized run rate.

Andy Jassy, Amazon’s chief executive, used the same release to note that Anthropic and OpenAI have both made multi-year, multi-gigawatt commitments to Trainium. AWS is selling them chips and cloud. The equity desk is marking the stock. A listing would replace that private mark with a closing price Amazon does not set.

Microsoft’s economic stake in OpenAI Group was about 27 percent when the October 2025 restructure closed, with no board seat. Nvidia and SoftBank anchored OpenAI’s March round alongside Amazon. Alphabet’s Anthropic holding is capped near 15 percent by contract, per court records circulating around the filing. Those four public companies are already long the IPO. Retail buyers are still waiting for a ticker.

Two Clocks, One Quiet Period

The two S-1s landed in the same week and then diverged. Anthropic is still trying to use the fall. OpenAI is not.

People who have seen Anthropic’s figures have described a July annualized pace of $65 billion, up from $47 billion in May, and some backers have talked up a listing near $2 trillion. The company itself has not set a target. NYU finance professor Aswath Damodaran has said a $2 trillion price would, on his math, want on the order of $1.2 trillion of annual sales within a decade. Bankers have been linked to a roadshow from mid-October, with a listing discussed before the November midterms, a tighter window for a 2 trillion listing that still has no public prospectus.

OpenAI’s last primary round is the $852 billion mark. Amazon committed $50 billion to that round, Nvidia $30 billion, and SoftBank $30 billion, with Microsoft staying in, and more than $3 billion coming from individuals through bank channels. A large slice of Amazon’s $50 billion is contingent on an IPO or an AGI milestone. On March 31 the company said it was generating $2 billion of revenue a month. Friar’s August message to staff put a 2027 listing on the calendar unless growth inflects again.

THE TWO LABS, AS FILED

One widely shared spreadsheet has Anthropic on a path from this year’s gigawatts to $1 trillion of annualized sales by 2030. That path is not in any prospectus, and the first public reaction to it was disbelief. Public buyers will not get to skip that argument. They will get footnotes.

The Foundation Still Appoints OpenAI’s Board

OpenAI can file because it already rebuilt the corporate wrapper. The for-profit is OpenAI Group PBC, a Delaware public benefit corporation. The nonprofit, renamed the OpenAI Foundation, still controls it. The Foundation appoints every Group director and can replace them at any time. Sam Altman sits on the Foundation board with independent directors chaired by Bret Taylor.

At the recap close, the Foundation’s 26 percent stake was valued at about $130 billion, plus a warrant that pays more equity if the share price rises past a set level over 15 years. Microsoft held about 27 percent. Employees and other investors held the remaining 47 percent. All of them now hold the same class of stock, which is the mechanical change an IPO needs. Control is still not a simple shareholder vote.

Anthropic is a single public-benefit corporation with a Long-Term Benefit Trust that elects a rising share of the board. In August the company confirmed plans for super-voting shares for chief executive Dario Amodei and other co-founders, a structure meant to keep founder control even though Amodei’s economic stake is small. A public book will have to explain that dual mandate in the risk factors, not in a keynote.

Evan Hubinger, Anthropic’s alignment science lead, wrote that the firm does not yet have a plan to solve alignment for superintelligence. That sentence, from a named official, is the sort of disclosure public markets price as governance, not as philosophy. A researcher who left the lab has described the industry as already in crunch time. Those claims will not decide the offer price. They will sit in the same document as the revenue table.

The AWS Bill That Comes With Any Listing

Frontier models do not list as software companies with a cloud invoice. They list as buyers of power, chips, and multi-year capacity, and the vendors are often also on the cap table.

Anthropic’s April 20 pact with Amazon is the cleanest version of that loop. Anthropic is committing more than 100 billion over the next ten years to AWS technologies, locking in as much as 5 gigawatts for Claude, including Trainium2 and Trainium3 capacity due this year. Amazon invested $5 billion that day, on top of $8 billion already in, with as much as $20 billion more later, or $33 billion of potential equity if the extra tranche funds.

Anthropic’s commitment to run its large language models on AWS Trainium for the next decade reflects the progress we’ve made together on custom silicon.

Andy Jassy, CEO, Amazon, April 20, 2026 announcement

OpenAI’s March round was built the same way, even if the mix is different. Amazon, Nvidia, and SoftBank anchored it. Nvidia’s slice is widely described as dedicated compute as much as cash, including gigawatts of Vera Rubin systems. Microsoft remains the long-run Azure partner and IP holder through the end of the decade, after giving up a first right of refusal on compute. Jassy’s second-quarter letter put OpenAI next to Anthropic as a Trainium customer. The S-1, when it is public, is where those overlapping roles stop being a partnership slide and become related-party disclosure.

THE INFRASTRUCTURE TIED TO ANY LISTING

• Anthropic and AWS: More than $100 billion over ten years and up to 5 gigawatts, including Trainium generations through Trainium4.
• Amazon cash into Anthropic: $5 billion in April on top of $8 billion already invested, and up to $20 billion more.
• OpenAI’s March round: $122 billion of commitments at $852 billion, anchored by Amazon, Nvidia, and SoftBank, with Microsoft still in.
• Amazon’s OpenAI check: $50 billion committed, with $35 billion tied to an IPO or an AGI milestone.

Amodei put the demand side in one line when the Amazon deal closed, saying users now treat Claude as essential to how they work and that the company has to build infrastructure to match that pace. The public version of that sentence is a capacity schedule, a remaining-performance obligation, and a gross margin that either holds or does not.

A Listing Would Hand Public Markets the Cost Sheet

Software stocks have been trading on an AI story for three years: automation lifts sales, or it cuts costs, or both. A frontier-lab prospectus is the first place those claims meet a cost of goods line measured in gigawatts. Customer concentration, training spend, inference spend, and the duration of cloud contracts would move from leaked slides to audited notes.

If Anthropic prices well, Amazon’s mark gets a public print and every application company that rents Claude or ChatGPT gets a new comparable. If the book shows that each extra dollar of revenue still buys a dollar of compute, the AI premium on smaller software names compresses whether or not either lab is a “success.” SpaceX listed in June around $1.75 trillion and then faded, which is the tape OpenAI’s advisers already had to explain when they presented a 2026 listing against a 2027 wait.

Guo’s own book is the other side of that print. Conviction never held OpenAI or Anthropic; the checks were too large. The firm is in the application layer, the companies that need the labs to keep selling models instead of rebuilding every product on top. A public lab that verticalizes into agents, ads, and coding tools is a supplier turning into a rival. That is why her television appearance was not a victory lap for two IPOs. It was a holder of the downstream stack watching the wholesalers approach a tape.

Anthropic has also talked in private markets about a 30 trillion market Anthropic pitched as the long-run opportunity. A public filing does not have to bless that number. It has to show the next four quarters of spend against the next four quarters of sales, which is a narrower test.

The Pipeline Sarah Guo Described Has Already Split

Guo told an interviewer she would take Anthropic stock at the market price, then added that owning it is not her life’s goal. That is the honest seat for an application-layer investor: she wants the labs public enough to be comparable, and not so vertically integrated that her companies become feature pads on someone else’s model.

OpenAI, for its part, said the quiet part in the June notice.

We recently submitted a confidential S-1. We expect it to leak so we’re just announcing it. We have not decided on timing yet; it may be a while because there are things we want to do that are likely easier as a private company. But it’s a complicated set of tradeoffs and this gives us the option to go public sooner if that ends up being best.

OpenAI, company statement, June 8, 2026

Anthropic has the same option and a faster clock. OpenAI has the same option and a CFO on record for 2027. Amazon has already recognized the private round. Microsoft, Nvidia, and Alphabet are already in the stack. The first public print will not introduce those names to the trade. It will tell them what the rest of the market thinks their marks are worth.

There is still no public prospectus, no offer price, and no listing date. Anthropic has said the deal depends on market conditions. OpenAI has said it may be a while. Amazon already ran the private mark through its income statement.

Disclaimer: This article is news reporting and analysis of company statements, securities filings, and related public remarks. It is informational only and is not investment advice, a solicitation, or a recommendation to buy or sell any security, including any future OpenAI or Anthropic shares or the stock of Amazon, Microsoft, Nvidia, Alphabet, or any other firm named here. Readers should consult a licensed financial adviser or other qualified professional who can review their own objectives and risk limits before making any investment decision. Valuations, revenue run rates, offer timelines, and accounting marks are taken from the cited statements and filings and can change with new rounds, new audits, or a public listing.