David Tepper's Q1 2026 Portfolio: AMZN Stake Up 98%, UBER Surges 242%
David Tepper's Appaloosa Management boosted its AMZN stake by 98% in its Q1 2026 13F filing, making it the fund's top holding, and opened a new position in SNDK. The fund fully exited AAL, OC, MHK, and IQV.

- Tepper's Appaloosa made AMZN its top holding at $900M (15.2%) in Q1 2026
- UBER surged 242% and the fund opened a new SNDK position
David Tepper disclosed in his Q1 2026 13F filing that he expanded his AMZN position by 98% to $900M (15.2%), making it his largest holding. Over the same period, UBER grew 242% to $456M (7.7%), and he opened a new $179M position in SNDK. Meanwhile, he fully exited AAL, OC, MHK, and IQV.

Top 5 Holdings — As of Q1 2026
Key Trading Highlights
Appaloosa Management's portfolio this quarter was reshaped around AMZN. The position grew 98% to $900M (15.2%), becoming the fund's largest holding, while UBER surged 242% to $456M (7.7%), landing in fourth place. MU rose 11% to $563M (9.5%), holding onto second place, and GOOG, TSM, BABA, NVDA, VST, NRG, and EWY rounded out the top 10, maintaining exposure to AI semiconductors, power infrastructure, and Asian growth stocks.
- AMZN: Stake up 98% to $900M — now the top holding at 15.2% of the portfolio
- UBER: Stake up 242% to $456M — enters top 5, signaling a bigger mobility bet
- SNDK: New $179M position — a bet on growing memory and storage demand
The only new position was SNDK, where Tepper deployed $179M to broaden exposure to the memory and storage sector. By contrast, he fully sold out of AAL ($217M), OC ($106M), MHK ($74M), and IQV ($63M), exiting airlines, building materials, and clinical research entirely. He also sharply trimmed DB (-92%), MSFT (-82%), and KWEB (-77%), signaling markedly reduced conviction in European financials, large-cap tech, and Chinese tech ETFs.
AI Infrastructure and Power Themes Persist
With MU, TSM, NVDA, VST, and NRG remaining in the top 10, Appaloosa's conviction in the AI semiconductor and data-center power demand themes carried through this quarter as well. At the same time, the full exit from non-core names like AAL, OC, MHK, and IQV, combined with trims to DB, MSFT, and KWEB, points to a strategy of concentrating the portfolio into a smaller set of high-conviction positions. Whether the sharp buildup in AMZN and UBER holds into next quarter will be worth watching.
Frequently Asked Questions
What new position did David Tepper open in Q1 2026?
David Tepper opened a new position in SNDK in Q1 2026, investing $179M.
What was the biggest change in David Tepper's Q1 2026 portfolio?
The biggest changes were expanding AMZN by 98% to $900M (15.2%), making it his top holding, and boosting UBER by 242% to $456M (7.7%).
What is David Tepper's largest holding?
As of Q1 2026, David Tepper's largest holding is AMZN, valued at $900M and accounting for 15.2% of his total portfolio.
What is Appaloosa Management's AUM?
As of Q1 2026, Appaloosa Management LP has total assets under management (AUM) of $5.5B across 20 holdings.
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