Amazon Stock At $266: How Much Of Its Profit Is Anthropic? Trefis Team Thu, November 12, 2026 at 7:02 AM EST 4 min read ANTH.PVT AMZN +0.24% GOOGM 0.00% MSFT -0.14% NVDA -7.53% Explore stocks on Coinbase Trading disclosure Trading disclosure The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for certain activity generated through this link. Prices displayed are informational.
More on the Anthropic IPO: our Anthropic IPO storyline page collects our pieces on it.
This morning a box landed on your porch. Tonight you might stream a show on Prime Video, or ask Claude to untangle the family budget. All three lean on Amazon: Claude is trained and run on four chip families, one of them Amazon's Trainium. Claude's maker, Anthropic, plans to list on Nasdaq as ANT at $70 to $78 a share around November 19.
Everyone knows Amazon owns a big slice, worth $134 billion to $272 billion at the price range once its convertible notes are counted, as we sized in Anthropic IPO Or Amazon, Google, Microsoft Stock? Fewer notice what that slice has done to Amazon's reported profit.
Each time Anthropic raised money at a higher price, Amazon marked its stake up and booked the gain as income: $62.8 billion in the first nine months of 2026, plus $4.5 billion released when notes converted. AWS earned $48.6 billion of operating income in those months. Those gains flatter the price tag: without one-time items, Amazon trades at about 36 times its past year's earnings, not 22. For a portfolio of a few million dollars with Amazon near the top, is 36 the price you meant to pay? A free 15-minute call with a Trefis partner firm can check.
Source: Morningstar; "without one-time items" is its normalized figure. Amazon's 10-Q ties most of 2026's one-time gains to Anthropic.
In the third quarter, markups on all of Amazon's private stakes came to just $39 million. Operating income rose 61% from a year earlier; net income fell 2%.
Until now, Amazon valued its stake from private deals. Once ANT trades, there is a price every day. Each $1 move in ANT changes the value of Amazon's 1.92 billion shares by about $1.9 billion; a $10 move is about two-thirds of last quarter's operating income. Amazon's Anthropic notes also carry a $140.3 billion gain held outside earnings, and when notes converted before, part of that gain moved into profit.
Sources: Amazon 10-Q and Q3 call; Anthropic's filing. Amazon describes the expansion as more than $100B over ten years.
Anthropic's commitment is about a fifth the size of Amazon's whole backlog, and CEO Andy Jassy said most of Bedrock, AWS's AI model service, runs on Trainium.
Decide which Amazon you're buying. If it's AWS and retail, judge it at 36 times, not 22. Size it for the ride: Amazon fell 56% from November 2021 to December 2022, so at 5% of your portfolio a repeat would cost about 2.8%. On November 19, take ANT's first close, subtract $74, and multiply by 1.92 billion: that is what Amazon's Anthropic shares gained or lost from the midpoint.
The risk: the math runs both ways. A falling ANT price would cut Amazon's paper value just as the markups added to it.
Gain per pain: yearly return above T-bills, divided by downside swings.
We call it profit you can't spend. AWS customers pay cash. A markup pays nothing until the stake is sold, and Amazon expects a lock-up after the IPO. For all the megacaps, see Anthropic IPO: What It Means For Amazon, Google And Nvidia Stock.
For seven-figure families, Amazon often sits in several funds at once, Anthropic stake and all. See how big your bet is in a free 15-minute call with a Trefis partner firm.
For questions about this article or underlying research, email help@trefis.com.
