GSI Banner
  • Free Access
  • Contributors
  • Membership Levels
  • Grey Swan Forecasts
  • Video
  • Origins
  • Sponsors
  • My Account
  • Sign In
  • Join Now

  • Free Access
  • Contributors
  • Membership Levels
  • Grey Swan Forecasts
  • Video
  • Origins
  • Sponsors
  • Contact

© 2026 Grey Swan Investment Fraternity

  • Cookie Policy
  • Privacy Policy
  • Terms & Conditions
  • Do Not Sell or Share My Personal Information
  • Whitelist Us
Ripple Effect

The 45% Club

Addison WigginAddison Wiggin

October 8, 2025 • 1 minute, 31 second read


AImarket concentration

The 45% Club

AI stocks are running hot. They’re not the only game in town… but they’re about half of it.

JPMorgan just reviewed all of the 500 companies in the S&P 500. A full 41 of them are AI-related. While that’s less than 10% of the index by total, it is over 45% of the index by market cap:

Turn Your Images On

The percentage of S&P companies in the AI trade has soared to nearly half the index’s value. (Source: Bianco Research)

Note that at the launch of ChatGPT in late 2022, these companies accounted for nearly 30% of the index’s value.

It’s just another way of looking at the narrow concentration that makes up today’s so-called diversified market index.

And another sign that, if any speed bumps occur in the AI story – which we expect will inevitably happen – the corresponding market reaction may be sizable.

Remember, stocks didn’t start falling when President Trump unveiled his “Liberation Day” tariff rates in April. The markets peaked in February, with China’s surprise announcement of the success of its DeepSeek launch.

~ Addison

 

P.S. Grey Swan Live! continues Thursday at 2 PM ET. This week’s guest is none other than George Gilder.

George once handed President Reagan the first microchip, and now he says today’s tech wave dwarfs the original $6.5 trillion tech revolution of the 1980s.

Eight exponential technologies — AI, quantum computing, robotics, self-driving cars, blockchain, chips, advanced biotech, and even space — are no longer advancing in isolation.

They’re colliding, compounding, and accelerating into what could be the single greatest wealth-building event of our lifetimes.

The pace is staggering. George just issued new research with our colleague Ian King, which you can review here before.

Turn Your Images On

If you have any questions for us about the market, send them our way now to: feedback@greyswanfraternity.com.


🧠 Idaho, AI, and the New American (Socialist) Experiment

June 24, 2026 • Addison Wiggin

With Big Tech preparing to spend huge on AI infrastructure, the race to dominate AI is increasingly becoming a race to build right now…

🧠 Idaho, AI, and the New American (Socialist) Experiment
Micron, Micron, Microoon…

June 24, 2026 • Addison Wiggin

As fears of an “AI bubble” fade from public attention, Micron’s results could reinforce the view that AI-driven growth remains firmly intact.

Micron, Micron, Microoon…
🎭 Tragedy In The Making

June 23, 2026 • Addison Wiggin

The Iran negotiations continue to reflect a familiar dynamic in which public posturing masks slower-moving, incremental diplomatic progress.

🎭 Tragedy In The Making
Failure to Launch

June 23, 2026 • Addison Wiggin

SpaceX’s retreat is rippling across the tech sector, proving that even the market’s hottest story can cool off in a hurry.

Failure to Launch