StockDriftsWhere conviction is rising: memory, foundry, and chip equipment
The new money is not scattered. It clusters in three parts of the AI supply chain:
- Memory and edge silicon: Qualcomm new at $347.9M and 3.54%; Micron new at $241.8M and 2.46%.
- Wafer-fab equipment: Applied Materials, KLA, and Lam Research form a deliberate basket, each around 1.7% to 1.9% of the book.
- AI cloud and foundry: CoreWeave up 35.0% to 6.15%; Taiwan Semiconductor up 4.7%; Microsoft up 7.1%.
The equipment names are slightly underwater versus average cost—AMAT down 3.0%, KLA down 7.4%—which suggests Altimeter is buying a cycle it expects to inflect, not chasing a momentum spike. This is conviction in the buildout's physical layer.
Conviction
The big buys
The biggest dollar adds this quarter — where conviction is rising.
| Position | Change | Portfolio weight | Value |
|---|---|---|---|
| QCOMQUALCOMM INC | New+$347.9M | 3.5% | $347.9M |
| MUMICRON TECHNOLOGY INC | New+$241.8M | 2.5% | $241.8M |
| AMATAPPLIED MATLS INC | New+$189.4M | 1.9% | $189.4M |
| KLACKLA CORP | New+$174.5M | 1.8% | $174.5M |
| LRCXLAM RESEARCH CORP | New+$170.8M | 1.7% | $170.8M |
| CRWVCOREWEAVE INC | Added 35.0%+$156.7M | 6.2% | $604.6M |
| AMZNAMAZON COM INC | Added 16.1%+$80.0M | 5.9% | $578.1M |
| GOOGLALPHABET INC | New+$62.6M | 0.6% | $62.6M |
Dollar changes estimated at current prices (shares added × current price); top-50 current positions only.
The sells: Meta and Uber fund the new semis
The trims are not a retreat from risk. They look like funding trades:
- Meta: trimmed 30.6% in share count, a $337.1M reduction, leaving a 7.76% weight and a 191.5% gain versus average cost.
- Uber: trimmed 7.5%, or $43.2M, leaving a 5.41% weight and a 51.4% gain.
- Arm: trimmed 4.3%, or $26.0M, but still a 5.92% weight and a 110.5% gain.
Snowflake and Robinhood were unchanged, and Nvidia was up only 0.8%, which tells you Altimeter wasn't broadly de-risking. The pattern is clear: monetize mature winners, keep the core, and redeploy into the chip supply chain. No full exits are visible in the top-50 data, so these are funding trades, not declarations that Meta or Uber are broken.
Sector shift: the label says tech, the action says semis
The sector bar chart shows a modest shift: Technology rises to 84.86% from 82.82%, while the so-called Real Estate sleeve falls to 6.71% from 8.49%. Don't take those labels literally. Uber and GRABW are filed under Real Estate, but Uber is a mobility and delivery platform, and GRABW is a Grab Holdings warrant; the real shift is out of mobility exposure, not out of property.
Consumer Discretionary is basically flat at 7.29% versus 7.35%, and Finance slips to 1.14% from 1.33%. The important shift is inside Technology: Altimeter trimmed platform software and added semis, memory, and wafer-fab equipment. That is a move from AI applications toward AI infrastructure. In other words, the headline sector weights understate the portfolio's real change. The book is still tech-heavy, but the center of gravity has shifted from AI applications to AI infrastructure.
What this suggests next: a concentrated bet on AI capex
The forward-looking message is that Altimeter wants to own the physical bottleneck of the AI trade. If AI capex keeps compounding, the new memory, foundry, and wafer-fab-equipment positions give the fund leverage to the buildout without relying only on Nvidia's multiple. CoreWeave adds AI-cloud exposure, and Taiwan Semiconductor anchors foundry. Microsoft and Amazon keep a foot in the hyperscaler camp.
But concentration cuts both ways. Top 10 positions are 70.6% of the book, and many core holdings carry enormous gains versus average cost:
- Nvidia: up 258.5% versus average cost.
- Meta: up 191.5%.
- Arm: up 110.5%.
A slowdown in AI spending or a sentiment reversal would hit this portfolio hard. The new equipment names are already slightly underwater versus average cost, so Altimeter is making a cycle call, not just a momentum call. With a 3-year annualized return of 23.1%, a latest-quarter gain of 20.74%, and a 5-year annualized return of 4.26%, the fund has earned the right to be aggressive but not complacent. The next few quarters will test whether the picks-and-shovels move was early or exactly on time.
Frequently asked questions
What did Altimeter Capital Management LP buy in 2026-Q2?+
The largest new buys were Qualcomm and Micron. Applied Materials, KLA, and Lam Research formed a wafer-fab-equipment basket. Alphabet and Synopsys were smaller adds, and a small Grab warrant also appeared.
What is Altimeter Capital Management LP's biggest holding?+
Nvidia is the largest position at 19.16% of the book, valued at $1.88B. It was increased by 0.8% in share count during 2026-Q2.
Did Altimeter Capital trim Meta in 2026-Q2?+
Yes. Altimeter cut Meta by 30.6% in share count, a $337.1M reduction, leaving it at 7.76% of the portfolio. The position still had a 191.5% gain versus average cost.
What sectors is Altimeter Capital overweight in 2026-Q2?+
Technology is the dominant sector at 84.86% of the book, up from 82.82%. The real internal shift is toward semis, memory, and wafer-fab equipment, not just broad software.
Is Altimeter Capital betting on semiconductor equipment?+
Yes. New positions in Applied Materials, KLA, and Lam Research form a deliberate wafer-fab-equipment basket. Each is roughly 1.7% to 1.9% of the portfolio, and some are slightly underwater versus average cost.
What is Altimeter Capital's top 10 concentration?+
Top 10 positions are 70.6% of the book. That is a high-conviction, concentrated portfolio with little room for laggards.