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The usual suspect: Big tech is driving the market to new highs

The usual suspect: Big tech is driving the market to new highs

The Magnificent 7

America’s flagship stock market index, the S&P 500, closed at another record high yesterday, as a stream of solid earnings reports — including Netflix (see more below) — drove the index to a fresh high.

Gone are the stock acronyms of FANG, MANTAMAN, or FAATMAN, and in is a new moniker for companies driving the market: The Magnificent 7 — Apple, Microsoft, Alphabet, Amazon, Nvidia, Meta, and Tesla. Not for decades has the US stock market been so top-heavy, with 28% of the index concentrated in just these 7 names. Indeed, the two biggest components are so large that buying $100 of an S&P 500 fund now means you’ve effectively bought ~$7 in Apple stock and ~$7 in Microsoft, with the other ~$86 split among the remaining stocks in the index.

Big tech’s relentless rise has seen these companies gain $5.66 trillion in market cap since the start of last year. That’s equivalent to adding the value of 33 Walt Disney companies... in just over a year.

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OpenAI releases ChatGPT 5.5 — more complex “knowledge work” for fewer tokens

Right on the heels of Anthropic’s Claude Opus 4.7, OpenAI has also released the next incremental improvement to its flagship frontier model.

OpenAI says that ChatGPT 5.5 performs better on complex coding and data analysis tasks, and more carefully follows instructions, even when the instructions are vague.

Importantly, this gain in capability does not mean developers and companies have to shell out for more tokens (as is the case with Claude Opus 4.7) — the model uses fewer tokens that ChatGPT 5.4.

OpenAI says the new model has strengthened safeguards to ensure that the model’s strong cybersecurity capabilities aren’t used for malicious attacks.

Importantly, this gain in capability does not mean developers and companies have to shell out for more tokens (as is the case with Claude Opus 4.7) — the model uses fewer tokens that ChatGPT 5.4.

OpenAI says the new model has strengthened safeguards to ensure that the model’s strong cybersecurity capabilities aren’t used for malicious attacks.

🤖 75%
Jon Keegan

On Wednesday, Google CEO Sundar Pichai said in a blog post that AI is now writing 75% of new code at the company. This is up from 50% last fall. Pichai said all code is “approved by engineers.”

Google announced new TPU 8 chips today at its annual Cloud Next event. Pichai wrote:

“We’re now shifting to truly agentic workflows. Our engineers are orchestrating fully autonomous digital task forces, firing off agents and accomplishing incredible things.”

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