The stock market has been ripping, with the S&P 500, Nasdaq Composite, and Dow Jones Industrial Average all near record highs. Given this is happening while inflation is rearing its head and consumer sentiment hits all-time lows, it’s making some investors uneasy.
Many are rotating out of the high-flying artificial intelligence (AI) stocks fueling the market’s all-time highs, but not these billionaires. Looking at the latest 13F disclosures filed with the Securities and Exchange Commission (SEC), there are still some major AI bulls among Wall Street’s biggest names.
David Tepper, Chase Coleman, and Bill Ackman have all doubled down on AI, especially infrastructure. Here’s a look at what each has been up to recently.
Image source: Getty Images.
David Tepper is betting big on AI infrastructure
David Tepper’s Appaloosa Management nearly doubled its Amazon position last quarter, making the cloud and AI giant his single largest bet. Four of his top five holdings now tie directly to AI infrastructure: Amazon, Micron Technology, Alphabet, and Taiwan Semiconductor Manufacturing.
Tepper also opened a new position in Sandisk and added significantly to Vistra, the power company that’s become a proxy for data center energy demand. The one notable cut was Microsoft, slashed by 82%.
| Company | Action | AI Role |
|---|---|---|
| Amazon | Added 98% | Cloud / AWS |
| Vistra | Added 114% | Data center power |
| Sandisk | New position | Memory / storage |
| TSMC | Added 17% | AI chip foundry |
| Microsoft | Cut 82% | Azure / Copilot |
Chase Coleman’s Tiger Global is loading up on chips
Chase Coleman’s Tiger Global runs a $22.8 billion portfolio, nearly half of which is in five names, all AI-related — Alphabet, Nvidia, Amazon, TSMC, Meta Platforms.
Last quarter, he expanded his AI bets, especially in chips, adding 49% to his TSMC stake and nearly doubling his Applied Materials position. He added more Broadcom and Nvidia as well.
| Company | Action | AI Role |
|---|---|---|
| Applied Materials | Added 85% | Chip equipment |
| TSMC | Added 49% | AI chip foundry |
| Broadcom | Added 25% | AI networking / chips |
| Meta | Added 12% | AI / Llama |
| Microsoft | Cut 54% | Azure / Copilot |
Bill Ackman likes Microsoft
Bill Ackman has the most concentrated portfolio of the group, with Pershing Square Capital Management holding just 11 positions worth $13.7 billion. While Coleman cut his Microsoft position, Ackman added a major stake. Ackman said he believes the company is a durable franchise temporarily out of favor because investors are spooked by its massive capital expenditures.
| Company | Action | AI Role |
|---|---|---|
| Microsoft | New $2.1 billion position | Azure / Microsoft 365 |
| Amazon | Added 19% | Cloud / AWS |
| Alphabet | Cut 95% | Cloud / Gemini |
Ackman also added to his Amazon position while slashing Alphabet by 95%. All in all, nearly 40% of his fund is invested in AI-related stocks.
The takeaway
So what should you do with this? Honestly, not much.
Tracking these sorts of moves can be useful directionally, revealing where the “smart money” generally sees opportunity. It can show you if fund managers are playing defense amid economic headwinds.
But remember that 13F filings are backward-looking snapshots, reflecting trades up to 45 days stale; they don’t show short positions or any hedges; and most importantly, fund managers can be — and often are — wrong. These trades are information, nothing more.
Johnny Rice has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Amazon, Applied Materials, Broadcom, Meta Platforms, Micron Technology, Microsoft, Nvidia, Taiwan Semiconductor Manufacturing, and Vistra. The Motley Fool has a disclosure policy.
