Altimeter Capital Management, LP
CIK 1541617 · View on SEC EDGAR ↗
- Portfolio value
- $9.8B
- Positions
- 20
- As of
- June 30, 2026
#489 of 9,443 by 13F value · top 5.2%
Portfolio value QoQ: +72.5% 13F does not disclose cash
- Top 10 holdings weight
- 83.28%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 16
- Effective number of positions
- 10.4
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 6.32% Est. buys $3,464,148,101 · sells $490,662,285
Median holding: 2.0 quarters Tracked Q4 2024–Q2 2026 · 42.6% still held
- New positions
- 10
- Increased
- 5
- Decreased
- 3
- Closed
- 3
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- High-conviction bets The holdings this manager is most concentrated in.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +21.4% · S&P 500: +18.0%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 99.4% · Options excluded: 0.0%
Sector breakdown
Technology
60.1%
Communication Services
8.4%
Retail
5.9%
Industrials
5.4%
Financial Services
0.9%
Other/Unmapped
19.3%
Full portfolio 20 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| NVDA NVIDIA Corporation - Common Stock | $1,883,565,023 | 19.16% | 9,413,589 | $255,359,821 | Up ×3 | ||
| Unknown issuer (CUSIP: 15675d103) | $1,596,733,177 | 16.24% | 7,225,037 | Up ×1 | |||
| META Meta Platforms, Inc. - Class A Common Stock | $763,252,318 | 7.76% | 1,354,990 | $-354,330,976 | Down ×1 | ||
| TSM Taiwan Semiconductor Manufacturing Company Ltd. | $682,617,068 | 6.94% | 1,429,355 | $221,087,202 | Up ×4 | ||
| CRWV CoreWeave, Inc. - Class A Common Stock | $604,575,601 | 6.15% | 6,073,695 | $256,032,260 | Up ×2 | ||
| ARM Arm Holdings plc - American Depositary Shares | $582,194,012 | 5.92% | 1,641,972 | $322,682,249 | Down ×1 | ||
| AMZN Amazon.com, Inc. - Common Stock | $578,058,158 | 5.88% | 2,425,351 | $142,865,913 | Up ×1 | ||
| UBER Uber Technologies, Inc. Common Stock | $531,995,271 | 5.41% | 7,372,440 | $-41,414,290 | Down ×1 | ||
| SNOW Snowflake Inc. Common Stock | $490,230,625 | 4.99% | 1,926,250 | $199,713,600 | |||
| MSFT Microsoft Corporation - Common Stock | $473,019,948 | 4.81% | 1,268,082 | $34,874,891 | Up ×1 | ||
| QCOM QUALCOMM Incorporated - Common Stock | $347,865,327 | 3.54% | 1,882,490 | Up ×1 | |||
| Unknown issuer (CUSIP: 84615Q103) | $303,530,227 | 3.09% | 1,776,485 | Up ×1 | |||
| MU Micron Technology, Inc. - Common Stock | $241,846,841 | 2.46% | 209,520 | ||||
| AMAT Applied Materials, Inc. - Common Stock | $189,389,850 | 1.93% | 261,950 | Up ×1 | |||
| KLAC KLA Corporation - Common Stock | $174,457,773 | 1.77% | 578,230 | Up ×1 | |||
| LRCX Lam Research Corporation - Common Stock | $170,766,686 | 1.74% | 394,080 | Up ×1 | |||
| HOOD Robinhood Markets, Inc. - Class A Common Stock | $90,221,013 | 0.92% | 899,691 | $27,872,427 | |||
| GOOGL Alphabet Inc. - Class A Common Stock | $62,604,076 | 0.64% | 175,180 | ||||
| SNPS Synopsys, Inc. - Common Stock | $62,602,803 | 0.64% | 140,343 | ||||
| GRABW Grab Holdings Limited - Warrant | $150,586 | 0.00% | 3,502,000 | Up ×1 | |||
| No matches | |||||||
Conviction holdings
Positions increased for 3+ consecutive quarters.
Share counts are as reported in 13F filings (not split-adjusted)
Biggest new bets
New positions opened this quarter, largest first.
| Security | Value | Shares | % of portfolio |
|---|---|---|---|
| Unknown issuer (CUSIP: 15675d103) | $1,596,733,177 | 7,225,037 | 16.24% |
| QCOM | $347,865,327 | 1,882,490 | 3.54% |
| Unknown issuer (CUSIP: 84615Q103) | $303,530,227 | 1,776,485 | 3.09% |
| MU | $241,846,841 | 209,520 | 2.46% |
| AMAT | $189,389,850 | 261,950 | 1.93% |
| KLAC | $174,457,773 | 578,230 | 1.77% |
| LRCX | $170,766,686 | 394,080 | 1.74% |
| GOOGL | $62,604,076 | 175,180 | 0.64% |
| SNPS | $62,602,803 | 140,343 | 0.64% |
| GRABW | $150,586 | 3,502,000 | 0.00% |
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| META | Trimmed | -598K | -$354.3M |
| ARM | Trimmed | -73K | +$322.7M |
| CRWV | Bought more | +1.6M | +$256.0M |
| NVDA | Bought more | +78K | +$255.4M |
| TSM | Bought more | +64K | +$221.1M |
| SNOW | Price move only | +0 | +$199.7M |
| AMZN | Bought more | +336K | +$142.9M |
| UBER | Trimmed | -599K | -$41.4M |
| MSFT | Bought more | +84K | +$34.9M |
| HOOD | Price move only | +0 | +$27.9M |
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| QQQ | June 30, 2025 | 988,000 | $463,292,960 | |
| CPNG | March 31, 2026 | 15,676,794 | $369,815,571 | -14.7% |
| CFLT | March 31, 2026 | 6,933,250 | $209,661,480 | No longer tracked |
| PDD | Dec. 31, 2025 | 1,371,680 | $181,294,946 | -21.7% |
| BABA | Dec. 31, 2025 | 969,100 | $173,207,243 | -16.7% |
| GOOGL | March 31, 2025 | 867,305 | $164,180,837 | 121.2% |
| GOOGL | March 31, 2026 | 519,290 | $162,537,770 | 18.9% |
| ARM | Dec. 31, 2025 | 1,098,139 | $155,375,687 | 129.4% |
| Z | March 31, 2026 | 2,187,421 | $149,225,860 | -13.8% |
| TSLA | March 31, 2025 | 355,130 | $143,415,700 | 34.6% |
| MELI | March 31, 2026 | 68,480 | $137,936,524 | 12.0% |
| SNPS | Dec. 31, 2025 | 258,280 | $127,432,770 | -15.2% |
| FLUT | June 30, 2025 | 568,410 | $125,931,235 | -65.1% |
| CART | Dec. 31, 2025 | 3,324,951 | $122,225,199 | 11.7% |
| IOT | Sept. 30, 2025 | 2,990,578 | $118,965,194 | 2.6% |
| DDOG | Sept. 30, 2025 | 881,730 | $118,442,790 | 61.4% |
| CRWV | Sept. 30, 2025 | 649,536 | $105,913,340 | -34.2% |
| TSM | March 31, 2025 | 504,380 | $99,610,006 | 153.1% |
| SHOP | March 31, 2026 | 570,210 | $91,786,704 | 22.9% |
| CRM | March 31, 2025 | 271,725 | $90,845,819 | -23.4% |
| BABA | June 30, 2025 | 540,370 | $71,453,125 | 7.7% |
| IOT | March 31, 2025 | 1,458,148 | $63,706,486 | -0.3% |
| AXON | June 30, 2026 | 148,986 | $63,272,864 | 8.6% |
| TWLO | March 31, 2025 | 582,915 | $63,001,453 | 122.0% |
| ALAB | June 30, 2025 | 981,697 | $58,577,860 | 220.4% |
| MU | March 31, 2025 | 614,595 | $51,724,315 | 1033.2% |
| RBRK | June 30, 2025 | 832,003 | $50,735,543 | 7.6% |
| GEMI | Dec. 31, 2025 | 1,600,000 | $38,336,000 | -53.8% |
| BE | March 31, 2026 | 260,730 | $22,654,831 | 52.1% |
| AVGO | June 30, 2026 | 67,094 | $20,766,265 | -1.3% |
| PTRN | Dec. 31, 2025 | 721,430 | $9,883,591 | 73.9% |
| DUOL | March 31, 2025 | 30,375 | $9,848,486 | -53.3% |
| NTSK | Dec. 31, 2025 | 325,000 | $7,387,250 | -19.9% |
| SAIL | June 30, 2025 | 250,000 | $4,687,500 | -21.0% |
| TTAN | June 30, 2025 | 40,000 | $3,804,400 | -14.8% |
| AGCWW | June 30, 2026 | 3,502,000 | $262,650 | No longer tracked |