Institutional Manager · CIK 0001409765
Guinness Atkinson Asset Management Inc
PASADENA, CA · File #028-12657
Latest AUM
$210.5M
Positions
93
Top-10 Concentration
38.7%
Filings
10
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| EXITED | DIVERSIFIED ENERGY COMPANY P | G2891G204 | -348 | -$4,888 | $0 |
| REDUCE | SUNCOR ENERGY INC NEW | SU | 0 | $0 | $0 |
| REDUCE | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 0 | $0 | $0 |
| REDUCE | TC ENERGY CORP | TRPRF | 0 | $0 | $0 |
| REDUCE | TE CONNECTIVITY PLC | TEL | 0 | $0 | $0 |
| REDUCE | TESLA INC | TSLA | 0 | $0 | $0 |
| REDUCE | TEXAS INSTRS INC | 882508104 | 0 | $0 | $0 |
| REDUCE | THERMO FISHER SCIENTIFIC INC | TMO | 0 | $0 | $0 |
| REDUCE | TRANE TECHNOLOGIES PLC | TT | 0 | $0 | $0 |
| REDUCE | VALERO ENERGY CORP | VLO | 0 | $0 | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORT (Amended)Q/E Dec 2025123 pos · $212.3M
- 13F HOLDINGS REPORTQ/E Dec 202593 pos · $210.5M
- 13F HOLDINGS REPORTQ/E Sep 202594 pos · $210.5M
- 13F HOLDINGS REPORTQ/E Jun 202584 pos · $190.7M
- 13F HOLDINGS REPORTQ/E Mar 202585 pos · $179.5M
- 13F HOLDINGS REPORTQ/E Dec 202485 pos · $196.1M
- 13F HOLDINGS REPORTQ/E Sep 2024100 pos · $205.6M
- 13F HOLDINGS REPORTQ/E Jun 2024100 pos · $204.3M
- 13F HOLDINGS REPORTQ/E Mar 2024104 pos · $212.9M
- 13F HOLDINGS REPORTQ/E Dec 2023105 pos · $179.8M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 30,725 | $9.2M | 4.74% |
| 2 | BROADCOM INC | AVGO | 26,123 | $9.1M | 4.68% |
| 3 | AMPHENOL CORP NEW | 032095101 | 55,867 | $7.6M | 3.92% |
| 4 | APPLIED MATLS INC | 038222105 | 28,840 | $7.6M | 3.89% |
| 5 | LAM RESEARCH CORP | LRCX | 41,159 | $7.2M | 3.71% |
| 6 | MEDTRONIC PLC | MDT | 73,824 | $7.1M | 3.64% |
| 7 | MICROSOFT CORP | MSFT | 14,513 | $7.1M | 3.62% |
| 8 | SALESFORCE INC | CRM | 25,835 | $6.9M | 3.53% |
| 9 | ALPHABET INC | GOOG | 21,704 | $6.8M | 3.49% |
| 10 | KLA CORP | KLAC | 5,349 | $6.7M | 3.46% |
| 11 | META PLATFORMS INC | META | 10,212 | $6.7M | 3.45% |
| 12 | INTERCONTINENTAL EXCHANGE IN | 45866F104 | 40,915 | $6.7M | 3.44% |
| 13 | DANAHER CORPORATION | 235851102 | 28,845 | $6.7M | 3.41% |
| 14 | ADOBE INC | ADBE | 18,709 | $6.6M | 3.39% |
| 15 | NVIDIA CORPORATION | NVDA | 34,933 | $6.6M | 3.37% |
| 16 | MASTERCARD INCORPORATED | MA | 11,365 | $6.6M | 3.37% |
| 17 | AMETEK INC | AME | 31,105 | $6.5M | 3.33% |
| 18 | THERMO FISHER SCIENTIFIC INC | TMO | 10,803 | $6.3M | 3.24% |
| 19 | INTUIT | INTU | 9,348 | $6.3M | 3.23% |
| 20 | VISA INC | V | 17,664 | $6.3M | 3.21% |