Friday, September 18, 2026 · 5 min read

Meerkat Explains

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Three years ago a Microsoft scientist wrote, in private, that training AI on other people's work was the biggest theft in history. On Thursday a court made that memo public, and the industry's quiet part is now on the record.

The same afternoon, Anthropic said its own chatbot already does a quarter of the work of designing the next Claude. Different stories, same week: the makers of AI look less in charge than they did on Monday.

Let Meerkat explain.

  • Why a Microsoft memo just called AI the largest theft in human history

  • Claude is now doing a quarter of Anthropic's work on the next Claude

  • How ten stocks quietly became 40% of your stock market

  • The week ahead, from Micron's chips to the Fed's next move

SCOREBOARD

NVIDIA
$219.34
+2.54%

MICROSOFT
$497.75
+1.52%

ALPHABET
$347.33
+1.30%

META
$682.31
+1.34%

AMAZON
$251.19
+2.13%

ORACLE
$150.59
+5.19%

S&P 500
7,637.76
+1.14%

NASDAQ
26,418
+1.69%

VIX
15.4
−12.82%

Thursday close. S&P up 1.1%, a broad rally that clawed back the day after the Fed's rate hike, with Oracle and Nvidia leading. On the week: Nvidia +0.45%, S&P +0.61%, Nasdaq +1.29%.

ON WATCH

Microsoft called it theft

An orange AI robot tiptoes off with an armful of newspapers past an abandoned typewriter

On Thursday a federal court unsealed documents from the New York Times' copyright case against OpenAI and Microsoft, and one line is doing the rounds. In a 2023 internal memo, a Microsoft director of applied science called training AI on other people's writing the "largest theft of labor in human history."

The brief, filed by the Times, says the two firms pulled in paywalled articles, built training sets out of them, and stripped the copyright notices off first. One OpenAI dataset reportedly held 91,692 copies of articles from the Times, the Daily News and the Center for Investigative Reporting.

The man who wrote that line, Microsoft's Brent Hecht, was warning his own employer, not going public. Three years on, a lawyer has turned his private worry into the heart of a case that could decide whether AI has to pay for the work it learned from.

The case against reading too much into it: this is the Times choosing which memo to wave, not a judge's finding, and no court has yet ruled the training illegal. Both firms argue it's fair use, that learning from public text is legal, and neither would comment on the filing.

MEERKAT'S TAKE: A company's lawyers say fair use while one of its own scientists wrote 'theft' in an email. When the outside critics and the inside memo reach for the same word, that's usually the word that sticks.

SPONSORED

Elon's new company is private. These 3 tickers aren't.

The next Apple may already exist. Insider sources say Elon has spent two years building a secret device inside Tesla's facilities — one he claims will be "10x bigger than the largest product in history."

There's just one problem: the company is private, and unless you know Elon personally, you can't buy a single share. That was true until Guardian's research team found three public ticker symbols sitting in the launch supply chain.

Click here to see all 3 tickers, free of charge.

You won't hear these names on CNBC — Wall Street hasn't published a word on the connection. But when the launch hits September 21, that quiet ends.

Some are already calling this the biggest opportunity since AI. For anyone who missed Apple before the iPhone, this may be a second look at that kind of setup.

THE MACHINE

Claude is building Claude

A robot at a drafting table sketching the blueprint of a larger robot

Anthropic published a first-of-its-kind gauge on Thursday: its own Claude models now "lead" 26% of the company's AI research and development, up from under 1% in February. "Lead" means the model runs most of a task end to end from a short prompt while a human keeps watch.

Put plainly, the chatbot is already doing a quarter of the work of designing its own replacement. Anthropic calls the gauge its R&D Automation Index, built on a scale from the research group Epoch AI, and says it will keep publishing it as the models get stronger.

To be fair, 26% isn't a robot running the lab on its own. Claude is supervised on every one of those tasks and still works with staff on more than 90% of the job, and this is Anthropic's own number, from a firm that gains when its AI looks like it's racing ahead.

QUICK PAUSE. WHY SHOULD YOU CARE? If AI can already do a quarter of the single hardest, best-paid job going, building frontier AI, then what it does to ordinary skilled work stops being a someday problem. The people most exposed this time are the ones who assumed a hard degree kept them safe.

SOMEONE SMART SAID

Alex Karp
❝

These businesses have to be nationalized because if you don't nationalize them, every single one of my clients is going to sue.

Alex Karp, CEO of Palantir, 17 September 2026

Karp said this to CNBC on Thursday, and his point is blunt: the AI labs pushing hardest for government oversight may be after cover from lawsuits, not safety. His own customers, he says, keep finding their private ideas turning up inside chatbots, and that "the competitor next door has all of their output."

It widens today's lead. On Watch was one publisher's court fight; Karp is describing the same grievance from big corporate clients, and a lobbying push he reads as the labs trying to get Washington to make the problem legal. He runs an AI company himself, so he's no neutral referee, but he's pointing straight at the money under the safety talk.

THE CHART

Ten stocks, forty percent

The top 10 companies as a share of the S&P 500, near 40 percent

Top 10 companies as a share of the S&P 500's value. Source: RBC Wealth Management and Apollo (Torsten Slok), 2026.

The ten biggest companies in the S&P 500, almost all of them AI names, now make up about 40% of the entire index, a bigger slice than at the peak of the dot-com boom. Own a plain index fund and you increasingly own Nvidia, Microsoft, Apple and a short list of their neighbours, whether you meant to or not.

That's why Thursday's bounce was so broad: when the giants move together, the whole market moves with them. The counter is that these are real, profitable companies with actual earnings, a long way from the story stocks of 1999, so concentration on its own isn't a bubble. Still, the more the market leans on a handful of AI bets, the more a wobble in one of them is a wobble in all of it.

WHAT TO WATCH: If the AI leaders keep rising together, the index looks strong but grows more fragile; the day they fall together is the day everyone learns how much of their savings was riding on the same few names.

HEADS UP

ON THE HORIZON

When (ET)

What

Today (Fri)

Quarterly "quad witching," a big options expiry that can jolt a quiet market.

Wed 30 Sep

Micron earnings after the close, a fresh read on the AI memory squeeze.

Wed 1 Oct

SoftBank's final $10bn to OpenAI due; OpenAI's deadline to answer Sen. Hawley.

Wed 28 Oct

Fed's next rate decision, after this week's first hike in three years.

Before Nov

Anthropic's ~$2tn IPO targeted to price, with Nvidia weighing a $10bn anchor.

MEERKAT ON YOUTUBE

Why Europe Is Collapsing

Why Europe Is Collapsing. Meerkat's Finance channel on why the continent's growth engine keeps stalling, and what a weaker Europe means for everyone else. Watch on Meerkat Explains Finance.

THE BURROW

Quick vote. A Microsoft scientist privately called training AI on other people's work the "largest theft of labor in human history." Now that it's public, what's fair?

A Microsoft scientist privately called training AI on other people's work the "largest theft of labor in human history." Now that it's public, what's fair?

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Trivia. The file-sharing service that set off the music industry's landmark copyright war launched in which year? Answer's at the bottom of the email. No peeking.

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HOW DID WE DO?

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Two days off the machines now. Meerkat's going to read something a human definitely wrote.

Know a writer who suspects a bot's been reading their stuff? Forward them this.

Meerkat is not telling you to buy anything, sell anything, or short anything. Meerkat is not a financial adviser. Meerkat is a small animal with a whiteboard and a copyright notice it refuses to strip. Please do not sue Meerkat.

TRIVIA ANSWER

1999. Napster launched in 1999, and the copyright war it set off, artists and labels against a piece of software that had swallowed their work, rhymes with the fight the AI labs are in now.