Altimeter Capital Management, LP — 13F Filing & Top Stock Positions (Q2 2026)
Altimeter Capital Management, LPCIK: 0001541617
Sector-focusedMomentum followerQuality / disciplined sizing
Total reported value
$9.8B
Reporting period: 2026-06-30 · Number of holdings: 20
Altimeter Capital Management, LP disclosed 20 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $9.8B and a quarterly turnover rate of 65.6%.
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Personality snowflake
- Concentration
- 38.56
- Portfolio Stability
- 65.56
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 40
- Sizing Uniformity
- 90.12
Altimeter Capital Management, LP's disclosed holdings carry a Herfindahl concentration index of 0.096 — mathematically equivalent to about 10 equally-sized positions, well below its 20 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.99), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 8.4 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govNew buy 15675D103
Trim META
-30.6% -$354.3M
Trim NVDA
+0.8% $255.4M
Trim UBER
-7.5% -$41.4M
New buy QCOM
New buy 84615Q103
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 19.16% | -9.41% | +0.83% | |
| 2 | ✓ | Stock-Other | 16.24% | +16.24% | NEW | ||
| 3 | META | Meta Platforms Inc-class A | Stock-Comm Services | 7.76% | -11.85% | -30.63% | |
| 4 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 6.94% | -1.16% | +4.66% | |
| 5 | CRWV | Coreweave Inc-cl A | Stock-Tech | 6.15% | +0.03% | +35.00% | |
| 6 | ARM | Arm Holdings Plc-adr | Stock-Tech | 5.92% | +1.37% | -4.28% | |
| 7 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 5.88% | -1.76% | +16.07% | |
| 8 | UBER | Uber Technologies Inc | Stock-Industrials | 5.41% | -4.65% | -7.52% | |
| 9 | SNOW | Snowflake Inc | Stock-Tech | 4.99% | -0.11% | — | |
| 10 | MSFT | Microsoft CORP | Stock-Tech | 4.81% | -2.88% | +7.13% | |
| 11 | QCOM | Qualcomm Inc | Stock-Tech | 3.54% | +3.54% | NEW | |
| 12 | ✓ | Stock-Other | 3.09% | +3.09% | NEW | ||
| 13 | MU | Micron Technology Inc | Stock-Tech | 2.46% | +2.46% | NEW | |
| 14 | AMAT | Applied Materials Inc | Stock-Tech | 1.93% | +1.93% | NEW | |
| 15 | KLAC | Kla CORP | Stock-Tech | 1.77% | +1.77% | NEW | |
| 16 | LRCX | Lam Research CORP | Stock-Tech | 1.74% | +1.74% | NEW | |
| 17 | HOOD | Robinhood Markets Inc - A | Stock-Financials | 0.92% | -0.17% | — | |
| 18 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.64% | +0.64% | NEW | |
| 19 | SNPS | Synopsys Inc | Stock-Tech | 0.64% | +0.64% | NEW | |
| 20 | GRAB | Grab Holdings Limited | Stock-Tech | — | — | NEW |
Portfolio Performance
Performance for Q3 2026
-0.7%
Performance Last 4 Quarters
-1.1%
- Stdev
- +26.7%
- Beta
- +1.68
- Alpha
- -12.7%
- Max Drawdown
- -22.6%
- Annualized Perf
- +19%
- Batting Avg vs S&P
- +52.8%
- Sortino
- +1.62
- Stutzer
- +0.24
- Treynor
- +0.12
- Sterling
- +0.7
- Calmar
- +0.84
- Information Ratio
- +0.05
- Tracking Error
- +17.9%
- Stdev Down
- +12.8%
- Winning Months %
- +47.2%
- Losing Months %
- +52.8%
- Best 12 Months
- +51.6%
- Worst 12 Months
- -8.2%
- Efficiency Ratio
- +0.32
- Sharpe
- +0.78
- Stdev Sectors
- +27.4%
- Skewness
- +0.79
- Kurtosis
- +0.52
- Upside Potential
- +3.6
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 20 | $9.8B | 66 | ||
| 2026 Q1 | 13 | $5.7B | 41 | ||
| 2025 Q4 | 18 | $6.7B | 34 | ||
| 2025 Q3 | 23 | $7.6B | 61 | ||
| 2025 Q2 | 18 | $6.9B | 0 | ||
| 2025 Q1 | 22 | $5.0B | 100 | ||
| 2024 Q4 | 24 | $5.5B | 0 | ||
| 2024 Q3 | 23 | $6.8B | 0 | ||
| 2024 Q2 | 20 | $6.7B | 0 | ||
| 2024 Q1 | 17 | $6.5B | 0 | ||
| 2023 Q4 | 11 | $6.0B | 0 | ||
| 2023 Q3 | 11 | $5.3B | 0 | ||
| 2023 Q2 | 11 | $5.5B | 0 | ||
| 2023 Q1 | 11 | $4.6B | 0 | ||
| 2022 Q4 | 11 | $3.7B | 0 | ||
| 2022 Q3 | 17 | $4.7B | 0 | ||
| 2022 Q2 | 16 | $4.4B | 0 | ||
| 2022 Q1 | 25 | $7.8B | 0 | ||
| 2021 Q4 | 25 | $10.5B | 0 | ||
| 2021 Q3 | 31 | $12.5B | 0 | ||
| 2021 Q2 | 33 | $12.8B | 0 | ||
| 2021 Q1 | 32 | $14.0B | 71 | ||
| 2020 Q4 | 29 | $10.8B | 64 | ||
| 2020 Q3 | 27 | $5.9B | 26 | ||
| 2020 Q2 | 23 | $4.7B | 44 | ||
| 2020 Q1 | 25 | $3.3B | 43 | ||
| 2019 Q4 | 27 | $4.5B | 15 | ||
| 2019 Q3 | 30 | $4.1B | 47 | ||
| 2019 Q2 | 27 | $3.7B | 26 | ||
| 2019 Q1 | 26 | $2.9B | 19 | ||
| 2018 Q4 | 26 | $2.7B | 27 | ||
| 2018 Q3 | 28 | $2.6B | 25 | ||
| 2018 Q2 | 28 | $2.1B | 11 | ||
| 2018 Q1 | 26 | $2.0B | 57 | ||
| 2017 Q4 | 26 | $1.9B | 25 | ||
| 2017 Q3 | 22 | $2.1B | 24 | ||
| 2017 Q2 | 24 | $2.4B | 13 | ||
| 2017 Q1 | 20 | $2.1B | 12 | ||
| 2016 Q4 | 17 | $1.9B | 29 | ||
| 2016 Q3 | 15 | $1.5B | 22 | ||
| 2016 Q2 | 14 | $1.3B | 27 | ||
| 2016 Q1 | 15 | $1.5B | 31 | ||
| 2015 Q4 | 20 | $1.8B | 22 | ||
| 2015 Q3 | 19 | $1.6B | 53 | ||
| 2015 Q2 | 25 | $1.4B | 17 | ||
| 2015 Q1 | 28 | $1.4B | 27 | ||
| 2014 Q4 | 29 | $1.4B | 53 | ||
| 2014 Q3 | 28 | $1.1B | 24 | ||
| 2014 Q2 | 33 | $1.0B | 27 | ||
| 2014 Q1 | 36 | $978.5M | 27 | ||
| 2013 Q4 | 36 | $836.1M | 65 | ||
| 2013 Q3 | 35 | $756.7M | 31 | ||
| 2013 Q2 | 30 | $559.6M | 0 |
Holding changes this quarter
Altimeter Capital Management, LP's most significant position changes for 2026-06-30: New buy: ; New buy: Qualcomm Inc (QCOM); New buy: ; New buy: Micron Technology Inc (MU); New buy: Applied Materials Inc (AMAT).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ✓ | +16.2% | NEW | New buy | |
| 2 | QCOM | Qualcomm Inc | +3.5% | NEW | New buy |
| 3 | ✓ | +3.1% | NEW | New buy | |
| 4 | MU | Micron Technology Inc | +2.5% | NEW | New buy |
| 5 | AMAT | Applied Materials Inc | +1.9% | NEW | New buy |
| 6 | KLAC | Kla CORP | +1.8% | NEW | New buy |
| 7 | LRCX | Lam Research CORP | +1.7% | NEW | New buy |
| 8 | ARM | Arm Holdings Plc-adr | +1.4% | -4.28% | Trim |
| 9 | GOOGL | Alphabet Inc-cl A | +0.6% | NEW | New buy |
| 10 | SNPS | Synopsys Inc | +0.6% | NEW | New buy |
| 11 | CRWV | Coreweave Inc-cl A | 0% | +35.00% | Add |
| 12 | ✓ | Grab Holdings Limited | — | EXIT | Sold out |
| 13 | GRAB | Grab Holdings Limited | — | NEW | New buy |
| 14 | SNOW | Snowflake Inc | -0.1% | — | Unchanged |
| 15 | HOOD | Robinhood Markets Inc - A | -0.2% | — | Unchanged |
| 16 | AVGO | Broadcom Inc | -0.4% | EXIT | Sold out |
| 17 | AXON | Axon Enterprise Inc | -1.1% | EXIT | Sold out |
| 18 | TSM | Taiwan Semiconductor-sp Adr | -1.2% | +4.66% | Add |
| 19 | AMZN | Amazon.com Inc | -1.8% | +16.07% | Add |
| 20 | MSFT | Microsoft CORP | -2.9% | +7.13% | Add |
| 21 | UBER | Uber Technologies Inc | -4.7% | -7.52% | Trim |
| 22 | NVDA | Nvidia CORP | -9.4% | +0.83% | Add |
| 23 | META | Meta Platforms Inc-class A | -11.9% | -30.63% | Trim |
Filing History
FAQ
What is Altimeter Capital Management, LP and what type of investor is it?
Altimeter Capital Management, LP is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $9.8B, spread across 20 disclosed positions.
What are Altimeter Capital Management, LP's largest equity positions?
Based on the latest 13F filing, Altimeter Capital Management, LP's top holdings by market value are:
1. Nvidia CORP (NVDA) — $1.9B (19.2%)
2. — $1.6B (16.2%)
3. Meta Platforms Inc-class A (META) — $763.3M (7.8%)
4. Taiwan Semiconductor-sp Adr (TSM) — $682.6M (6.9%)
5. Coreweave Inc-cl A (CRWV) — $604.6M (6.2%)
What changes did Altimeter Capital Management, LP make in its most recent portfolio filing?
In the latest reported quarter, Altimeter Capital Management, LP made 21 notable position adjustments: 10 new positions were initiated, 5 existing holdings were added to, 3 positions were partially reduced, and 3 were completely exited. The largest of these moves: New buy: ; New buy: Qualcomm Inc (QCOM); New buy: ; New buy: Micron Technology Inc (MU); New buy: Applied Materials Inc (AMAT)
What sectors does Altimeter Capital Management, LP focus on?
Altimeter Capital Management, LP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 74.5%
• Communication Services: 10.4%
• Consumer Discretionary: 7.3%
• Industrials: 6.7%
• Financials: 1.1%
Investment Profile
Altimeter Capital Management, LP returned an annualized 19.0% over the trailing 36 months — underperforming the S&P 500 by 12.7 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.68 (more volatile than the market) and a 53% quarterly batting average against the index.
Its portfolio is moderately concentrated and fast-trading, with 74.5% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 66 over the past 4 quarters — a shift toward more active trading.
It has added to its CRWV position over the past two quarters (+$374.5M, now $604.6M), while trimming META over the same stretch (-$454.9M, still holding $763.3M).
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Developer Access
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