Alta Advisers Ltd reported 327 positions worth $552.17M for the quarter ended Sep 30, 2026, up 80.9% on the prior quarter. It opened 113 new positions, added to 213, trimmed 1 and exited 0. Its largest holding is Nvidia Corp at 15.5% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| NVDA Nvidia Corp | +102.8K | +37.7% | $23.48M | 15.52% |
| AMZN Amazon Com Inc | +64.4K | +68.5% | $16.05M | 7.15% |
| AAPL Apple Inc. | +47.0K | +81.4% | $15.66M | 6.32% |
| GOOG Alphabet Inc. | +39.1K | +64.8% | $13.33M | 6.14% |
| MSFT Microsoft Corp | +24.4K | +84.0% | $12.49M | 4.96% |
| GOOGL Alphabet Inc. | +19.6K | +86.7% | $6.74M | 2.63% |
| AVGO Broadcom Inc. | +15.8K | +86.2% | $5.53M | 2.16% |
| META Meta Platforms, Inc. | +7,229 | +84.5% | $5.24M | 2.07% |
| XOM ExxonMobil Holdings Corp | +29.1K | – | $4.74M | 0.859% |
| MU Micron Technology Inc | +3,737 | +85.4% | $3.98M | 1.56% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| WDC Western Digital Corp | -15.8K | -86.3% | $7.20M | 0.208% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| XOM ExxonMobil Holdings Corp | +29.1K | $4.74M | 0.859% |
| SPCX Space Exploration Technologies Corp | +9,093 | $1.37M | 0.248% |
| HPE Hewlett Packard Enterprise Co | +9,608 | $613.86K | 0.111% |
| MRNA Moderna, Inc. | +2,755 | $530.53K | 0.096% |
| NTRA Natera, Inc. | +1,049 | $433.56K | 0.079% |
| DVN Devon Energy Corp | +8,260 | $380.29K | 0.069% |
| MSTR Strategy Inc | +2,406 | $368.33K | 0.067% |
| MET Metlife Inc | +3,731 | $351.31K | 0.064% |
| EW Edwards Lifesciences Corp | +4,008 | $345.97K | 0.063% |
| BDX Becton Dickinson & Co | +1,928 | $345.11K | 0.063% |
No positions were closed this quarter.
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | NVDA Nvidia Corp | Technology | 375.3K | $85.70M | 15.52% | +102.8K | +37.7% | Added | 0% |
| 2 | AMZN Amazon Com Inc | Consumer Discretionary | 158.4K | $39.46M | 7.15% | +64.4K | +68.5% | Added | 0% |
| 3 | AAPL Apple Inc. | Technology | 104.8K | $34.90M | 6.32% | +47.0K | +81.4% | Added | 0% |
| 4 | GOOG Alphabet Inc. | Technology | 99.5K | $33.91M | 6.14% | +39.1K | +64.8% | Added | 0% |
| 5 | MSFT Microsoft Corp | Technology | 53.4K | $27.37M | 4.96% | +24.4K | +84.0% | Added | 0% |
| 6 | GOOGL Alphabet Inc. | Technology | 42.2K | $14.50M | 2.63% | +19.6K | +86.7% | Added | 0% |
| 7 | STX Seagate Technology Holdings plc | Technology | 15.7K | $14.45M | 2.62% | +3,502 | +28.8% | Added | 0.01% |
| 8 | AVGO Broadcom Inc. | Technology | 34.0K | $11.95M | 2.16% | +15.8K | +86.2% | Added | 0% |
| 9 | META Meta Platforms, Inc. | Technology | 15.8K | $11.45M | 2.07% | +7,229 | +84.5% | Added | 0% |
| 10 | MU Micron Technology Inc | Technology | 8,112 | $8.64M | 1.56% | +3,737 | +85.4% | Added | 0% |
| 11 | TSLA Tesla, Inc. | Consumer Discretionary | 20.2K | $7.18M | 1.3% | +9,312 | +85.3% | Added | 0% |
| 12 | AMD Advanced Micro Devices Inc | Technology | 11.7K | $7.17M | 1.3% | +5,334 | +83.4% | Added | 0% |
| 13 | LLY ELI LILLY & Co | Healthcare | 5,697 | $6.59M | 1.19% | +2,618 | +85.0% | Added | 0% |
| 14 | BRK-B Berkshire Hathaway Inc | Financial Services | 13.1K | $6.53M | 1.18% | +5,987 | +83.9% | Added | 0% |
| 15 | JPM Jpmorgan Chase & Co | Financial Services | 19.1K | $6.32M | 1.14% | +8,422 | +78.8% | Added | 0% |
Tip. Select a row to see that position’s full history at Alta Advisers.
As of its Q3 2026 13F filing, Alta Advisers Ltd’s five largest positions were Nvidia Corp (NVDA) at 15.5%, Amazon Com Inc (AMZN) at 7.1%, Apple Inc. (AAPL) at 6.3%, Alphabet Inc. (GOOG) at 6.1%, Microsoft Corp (MSFT) at 5.0% of the reported portfolio.
Alta Advisers Ltd reported a 13F portfolio worth $552.17M across 327 positions for Q3 2026. That is up 80.9% from the previous quarter.
Its largest purchases by value were Nvidia Corp ($23.48M), Amazon Com Inc ($16.05M), Apple Inc. ($15.66M). It opened 113 new positions.
Its largest sales by value were Western Digital Corp ($7.20M). It exited 0 positions entirely.
From the Form 13F-HR reports Alta Advisers Ltd files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.