13F portfolio / Technology, public and private
Altimeter Capital
Brad Gerstner (founder)
Altimeter Capital is a technology-focused investment firm with offices in Boston and Menlo Park, California.
- Reported 13F value
- $9.8B
- Positions
- 20
- Est. 1-yearEstimate
- -0.5%SPY +15.7%
- Est. 3-year, annualizedEstimate
- +26.9%SPY +22.8%
As of Jun 30, 2026 · filed Aug 14, 2026
Holdings
10 new · 5 added · 3 trimmed · 2 unchanged · 3 sold out
| 1 | NVDA on Yahoo Finance (opens in a new tab) | Nvidia CorporationCOM | 19.2% | $1.9B | 9,413,589 | Added +0.8% | $115.48* | $215.30 | +86.4% |
| 2 | CBRS on Yahoo Finance (opens in a new tab) | Cerebras Systems IncCOM CL A | 16.2% | $1.6B | 7,225,037 | New | $235.36 | $128.53 | -45.4% |
| 3 | META on Yahoo Finance (opens in a new tab) | Meta Platforms IncCL A | 7.8% | $763M | 1,354,990 | Trimmed -30.6% | $323.76* | $706.95 | +118.4% |
| 4 | TSM on Yahoo Finance (opens in a new tab) | Taiwan Semiconductor Mfg LtdSPONSORED ADS | 6.9% | $683M | 1,429,355 | Added +4.7% | $228.17 | $413.04 | +81.0% |
| 5 | CRWV on Yahoo Finance (opens in a new tab) | Coreweave IncCOM CL A | 6.2% | $605M | 6,073,695 | Added +35.0% | $100.00 | $61.37 | -38.6% |
| 6 | ARM on Yahoo Finance (opens in a new tab) | Arm Holdings PLCSPONSORED ADS | 5.9% | $582M | 1,641,972 | Trimmed -4.3% | $121.36 | $232.18 | +91.3% |
| 7 | AMZN on Yahoo Finance (opens in a new tab) | Amazon Com IncCOM | 5.9% | $578M | 2,425,351 | Added +16.1% | $195.52* | $249.20 | +27.5% |
| 8 | UBER on Yahoo Finance (opens in a new tab) | Uber Technologies IncCOM | 5.4% | $532M | 7,372,440 | Trimmed -7.5% | $57.25* | $69.99 | +22.3% |
| 9 | SNOW on Yahoo Finance (opens in a new tab) | Snowflake IncCOM SHS | 5.0% | $490M | 1,926,250 | Unchanged | $157.71* | $304.05 | +92.8% |
| 10 | MSFT on Yahoo Finance (opens in a new tab) | Microsoft CorpCOM | 4.8% | $473M | 1,268,082 | Added +7.1% | $360.23* | $526.88 | +46.3% |
| 11 | QCOM on Yahoo Finance (opens in a new tab) | Qualcomm IncCOM | 3.5% | $348M | 1,882,490 | New | $185.52 | $173.32 | -6.6% |
| 12 | SPCX on Yahoo Finance (opens in a new tab) | Space Exploration Techn CorpCLASS A COM STK | 3.1% | $304M | 1,776,485 | New | $170.68 | $144.89 | -15.1% |
| 13 | MU on Yahoo Finance (opens in a new tab) | Micron Technology IncCOM | 2.5% | $242M | 209,520 | New | $749.66 | $893.53 | +19.2% |
| 14 | AMAT on Yahoo Finance (opens in a new tab) | Applied Matls IncCOM | 1.9% | $189M | 261,950 | New | $460.61 | $416.19 | -9.6% |
| 15 | KLAC on Yahoo Finance (opens in a new tab) | KLA CorpCOM NEW | 1.8% | $174M | 578,230 | New | $198.17 | $168.76 | -14.8% |
| 16 | LRCX on Yahoo Finance (opens in a new tab) | Lam Research CorpCOM NEW | 1.7% | $171M | 394,080 | New | $303.07 | $266.99 | -11.9% |
| 17 | HOOD on Yahoo Finance (opens in a new tab) | Robinhood Mkts IncCOM CL A | 0.9% | $90M | 899,691 | Unchanged | $48.83 | $99.35 | +103.4% |
| 18 | GOOGL on Yahoo Finance (opens in a new tab) | Alphabet IncCAP STK CL A | 0.6% | $63M | 175,180 | New | $359.57 | $341.57 | -5.0% |
| 19 | SNPS on Yahoo Finance (opens in a new tab) | Synopsys IncCOM | 0.6% | $63M | 140,343 | New | $470.22 | $451.08 | -4.1% |
| 20 | GRABW on Yahoo Finance (opens in a new tab) | Grab Holdings LimitedW EXP 12/1/202 | 0.0% | $151K | 3,502,000 | New | $0.06 | $0.01 | -78.8% |
Sold out since Q1 2026
- AXON on Yahoo Finance (opens in a new tab)Axon Enterprise Inc$63M at Q1 2026
- AVGO on Yahoo Finance (opens in a new tab)Broadcom Inc$21M at Q1 2026
- —Grab Holdings Limited$263K at Q1 2026
Estimated, from reported holdings
Quarter by quarter
High-conviction buys (new positions at 3% or more of the portfolio) since Q3 2023: 6. Of 2 with six months of history, 50.0% beat the S&P 500 from the filing date.
Source: SEC Form 13F-HR 0001541617-26-000008, compared with the Q1 2026 report. 0 option rows are excluded from weights. Tickers map from CUSIP via OpenFIGI. Estimated returns weight each position’s next-quarter total return (Yahoo Finance adjusted closes) by its quarter-end value and assume no trades. Estimated cost averages daily adjusted closes in each quarter the share count rose, from Q3 2023 onward (* = held at the start of our data). Price is the latest close.
Important information
Form 13F data is delayed. Managers have up to 45 days after each calendar quarter to file, so holdings shown may have changed materially since the report date. 13F reports cover long positions in US-listed equities and certain other securities only; they exclude short positions, most non-US holdings, cash, bonds and private investments, and managers may request confidential treatment for some positions. Options rows are listed in filings but are not counted in the holdings and weights shown here.
Estimated holdings returns, estimated cost and high-conviction results are hypothetical calculations from quarter-end holdings and public prices, assuming no trades between reports. They are not the actual returns or costs of any fund or manager and do not reflect fees, trading, leverage, shorts or cash. Biographies are drawn from cited public sources. This page is for information only and is not individualized investment advice or a recommendation to buy or sell any security. Gulfstream Capital and its clients may hold positions in securities shown.