Guinness Atkinson Asset Management Inc reported 107 positions worth $224.65M for the quarter ended Sep 30, 2026, up 0.8% on the prior quarter. It opened 1 new position, added to 21, trimmed 44 and exited 0. Its largest holding is Taiwan Semiconductor Manufacturing Co Ltd at 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 | +4,377 | +12.6% | $999.62K | 3.97% |
| TEL TE Connectivity plc | +3,312 | +242.1% | $699.10K | 0.44% |
| MTZ Mastec Inc | +2,297 | – | $490.69K | 0.218% |
| QCOM Qualcomm Inc | +1,165 | +16.6% | $214.41K | 0.669% |
| JD JD.com, Inc. | +3,236 | +10.0% | $86.08K | 0.422% |
| HUBB Hubbell Inc | +49 | +2.8% | $22.23K | 0.364% |
| SLB Slb Limited | +453 | +5.7% | $22.07K | 0.184% |
| NEE Nextera Energy Inc | +273 | +2.8% | $20.68K | 0.337% |
| HAL Halliburton Co | +560 | +4.8% | $17.81K | 0.172% |
| NXPI NXP Semiconductors N.V. | +74 | +2.0% | $17.58K | 0.408% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| AFL Aflac Inc | -8,035 | -38.1% | $898.15K | 0.649% |
| TSM Taiwan Semiconductor Manufacturing Co Ltd | -1,247 | -4.8% | $568.87K | 4.97% |
| APTV Aptiv PLC | -7,905 | -76.1% | $340.07K | 0.048% |
| VLO Valero Energy Corp | -707 | -28.3% | $274.04K | 0.309% |
| BIDU Baidu, Inc. | -3,039 | -29.7% | $264.00K | 0.278% |
| APH Amphenol Corp | -2,810 | -2.8% | $236.88K | 3.65% |
| AVGO Broadcom Inc. | -398 | -1.4% | $139.77K | 4.35% |
| AMD Advanced Micro Devices Inc | -203 | -1.4% | $124.19K | 3.81% |
| MSFT Microsoft Corp | -219 | -1.2% | $112.33K | 4.07% |
| AAPL Apple Inc. | -323 | -1.4% | $107.57K | 3.3% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| MTZ Mastec Inc | +2,297 | $490.69K | 0.218% |
No positions were closed this quarter.
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | TSM Taiwan Semiconductor Manufacturing Co Ltd | Technology | 24.5K | $11.16M | 4.97% | -1,247 | -4.8% | Reduced | 0% |
| 2 | AVGO Broadcom Inc. | Technology | 27.8K | $9.78M | 4.35% | -398 | -1.4% | Reduced | 0% |
| 3 | MSFT Microsoft Corp | Technology | 17.8K | $9.15M | 4.07% | -219 | -1.2% | Reduced | 0% |
| 4 | NVDA Nvidia Corp | Technology | 39.1K | $8.92M | 3.97% | +4,377 | +12.6% | Added | 0% |
| 5 | AMD Advanced Micro Devices Inc | Technology | 14.0K | $8.55M | 3.81% | -203 | -1.4% | Reduced | 0% |
| 6 | APH Amphenol Corp | Industrials | 97.2K | $8.19M | 3.65% | -2,810 | -2.8% | Reduced | 0% |
| 7 | TMO Thermo Fisher Scientific Inc. | Healthcare | 11.9K | $8.05M | 3.58% | -155 | -1.3% | Reduced | 0% |
| 8 | AAPL Apple Inc. | Technology | 22.2K | $7.41M | 3.3% | -323 | -1.4% | Reduced | 0% |
| 9 | AMZN Amazon Com Inc | Consumer Discretionary | 29.1K | $7.25M | 3.23% | -424 | -1.4% | Reduced | 0% |
| 10 | CRM Salesforce, Inc. | Technology | 31.4K | $7.20M | 3.21% | -457 | -1.4% | Reduced | 0% |
| 11 | AMAT Applied Materials Inc | Technology | 13.8K | $7.08M | 3.15% | -197 | -1.4% | Reduced | 0% |
| 12 | NDAQ Nasdaq, Inc. | Financial Services | 76.7K | $7.06M | 3.14% | -1,119 | -1.4% | Reduced | 0.01% |
| 13 | V Visa Inc. | Financial Services | 19.3K | $6.92M | 3.08% | -280 | -1.4% | Reduced | 0% |
| 14 | MDT Medtronic plc | Healthcare | 79.4K | $6.85M | 3.05% | -1,005 | -1.2% | Reduced | 0.01% |
| 15 | GOOGL Alphabet Inc. | Technology | 19.8K | $6.82M | 3.03% | -288 | -1.4% | Reduced | 0% |
Tip. Select a row to see that position’s full history at Guinness Atkinson Asset Management.
As of its Q3 2026 13F filing, Guinness Atkinson Asset Management Inc’s five largest positions were Taiwan Semiconductor Manufacturing Co Ltd (TSM) at 5.0%, Broadcom Inc. (AVGO) at 4.4%, Microsoft Corp (MSFT) at 4.1%, Nvidia Corp (NVDA) at 4.0%, Advanced Micro Devices Inc (AMD) at 3.8% of the reported portfolio.
Guinness Atkinson Asset Management Inc reported a 13F portfolio worth $224.65M across 107 positions for Q3 2026. That is up 0.8% from the previous quarter.
Its largest purchases by value were Nvidia Corp ($999.62K), TE Connectivity plc ($699.10K), Mastec Inc ($490.69K). It opened 1 new positions.
Its largest sales by value were Aflac Inc ($898.15K), Taiwan Semiconductor Manufacturing Co Ltd ($568.87K), Aptiv PLC ($340.07K). It exited 0 positions entirely.
From the Form 13F-HR reports Guinness Atkinson Asset Management Inc 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.