Altimeter Capital Management portfolio
Concentrated managerInvestment firmPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Altimeter Capital Management reported a $9.8 bn portfolio of 20 positions to the SEC as of the end of Q2 2026. Its largest positions are NVDA, CBRS, META. During the quarter it opened Qualcomm and Micron Technology and exited Axon Enterprise.
Sections with a free account
What it reported after the quarter end (Q2 2026)
The 13F shows the portfolio as of Jun 30, 2026. Since then Altimeter Capital Management has filed these own trades with the SEC (Form 4, when it owns more than 10% of a company or holds a role in it) and stakes above 5% (13D and 13G). It is not everything it did: only what it must report before the next 13F.
Stake reported in the company · event of Jun 30, 2026 · filed Aug 14, 2026 · filing ↗
What changed this quarter
18 positions with a change (8 new, 4 added to, 3 trimmed, 3 sold); also, 2 entered through an IPO. 11 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Newly listedCerebras SystemsCBRS16.2% of the portfolio
- Newly listedSpace Exploration TechnologiesSPCX3.1% of the portfolio
It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.
- Qualcomm+3.5 ppof portfolioNew— → 3.5%
- Meta Platforms−31%fewer sharesReduced19.6% → 7.8%
- Micron Technology+2.5 ppof portfolioNew— → 2.5%
- Applied Materials+1.9 ppof portfolioNew— → 1.9%
- KLA+1.8 ppof portfolioNew— → 1.8%
- Lam Research+1.7 ppof portfolioNew— → 1.7%
- CoreWeave+35%more sharesIncreased6.1% → 6.2%
- Amazon.com+16%more sharesIncreased7.6% → 5.9%
- Axon Enterprise−0.6 ppof portfolioSold out1.1% → —
- Alphabet+0.6 ppof portfolioNew— → 0.6%
- Synopsys+0.6 ppof portfolioNew— → 0.6%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- NVIDIANVDA19.2%
- Cerebras SystemsCBRS16.2%
- Meta PlatformsMETA7.8%
- Taiwan Semiconductor ManufacturingTSM6.9%
- CoreWeaveCRWV6.2%
- ARM HoldingsARM5.9%
- Amazon.comAMZN5.9%
- UBER TechnologiesUBER5.4%
- SnowflakeSNOW5.0%
- MicrosoftMSFT4.8%
- QualcommQCOM3.5%
- Space Exploration TechnologiesSPCX3.1%
- Micron TechnologyMU2.5%
- Applied MaterialsAMAT1.9%
- KLAKLAC1.8%
“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.
Portfolio by sector
- ● Information Technology 76%
- ● Industrials 9%
- ● Communication Services 8%
- ● Consumer Discretionary 6%
- ● Financials 1%
How its portfolio changed (8 quarters)
Q2 2026: 20
Q2 2026: 83%
Q2 2026: 20.0%
Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
Similar managers by type and size
Same type of filer and a 13F portfolio value between a third and three times this one. It is not a comparison of what they hold.
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