- Aquamarine Zurich AG Portfolio Holdings
As of Sep 30, 2025, the Aquamarine Zurich AG portfolio holdings is valued at approximately $317,370.00 featuring 14 publicly traded holdings. This in-depth profile highlights the top investments led by BERKSHIRE HATHAWAY INC DEL (BRK-B), AMERICAN EXPRESS CO (AXP), BANK AMERICA CORP (BAC), MASTERCARD INCORPORATED (MA), and others based on the company's latest SEC filings reported on Oct 20, 2025. Explore insights into portfolio composition, sector allocation, and recent trade activity.
Aquamarine Zurich AG's stock portfolio spans 14 holdings across 7 sectors, with a total market value of $317,370.00. The Financial Services sector represents the largest allocation, while the top holdings account for nearly 97% of the total portfolio value. BERKSHIRE HATHAWAY INC DEL remains the single largest position at 22.3% of all equity investments.
Complete Holdings
Showing 14 of 14 holdings.
| # | Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|---|
| 1 | BERKSHIRE HATHAWAY INC DEL | BRK-B | Financial Services | 22.27% | 140,600 | - | - | $70,685.00 |
| 2 | AMERICAN EXPRESS CO | AXP | Financial Services | 21.98% | 210,000 | - | - | $69,754.00 |
| 3 | BANK AMERICA CORP | BAC | Financial Services | 12.48% | 767,845 | - | - | $39,613.00 |
| 4 | MASTERCARD INCORPORATED | MA | Financial Services | 11.78% | 65,750 | - | - | $37,399.00 |
| 5 | FERRARI N V | RACE | Other | 9.13% | 60,000 | - | - | $28,978.00 |
| 6 | BERKSHIRE HATHAWAY INC DEL | BRK-A | Financial Services | 7.13% | 30 | - | - | $22,626.00 |
| 7 | MICRON TECHNOLOGY INC | MU | Technology | 4.22% | 80,000 | -120,000 | -60.00% | $13,386.00 |
| 8 | MOODYS CORP | MCO | Financial Services | 4.05% | 27,000 | - | - | $12,865.00 |
| 9 | ALIBABA GROUP HLDG LTD | BABA | Consumer Cyclical | 2.68% | 47,500 | - | - | $8,490.00 |
| 10 | DAILY JOURNAL CORP | DJCO | Technology | 1.69% | 11,500 | - | - | $5,349.00 |
| 11 | ALPHABET INC | GOOGL | Communication Services | 1.23% | 16,000 | - | - | $3,890.00 |
| 12 | SERITAGE GROWTH PPTYS | SRG | Real Estate | 0.67% | 500,000 | - | - | $2,125.00 |
| 13 | ALPHA METALLURGICAL RESOUR I | AMR | Basic Materials | 0.41% | 8,000 | - | - | $1,313.00 |
| 14 | CORE NATURAL RESOURCES INC | CEIX | Other | 0.28% | 10,740 | +2,640 | +32.59% | $897.00 |
Holdings by Sector
| Sector | Allocation | Value |
|---|---|---|
| Financial Services | 79.70% | $252,942.00 |
| Other | 9.41% | $29,875.00 |
| Technology | 5.90% | $18,735.00 |
| Consumer Cyclical | 2.68% | $8,490.00 |
| Communication Services | 1.23% | $3,890.00 |
| Real Estate | 0.67% | $2,125.00 |
| Basic Materials | 0.41% | $1,313.00 |
Portfolio insights
As of Sep 30, 2025, the Aquamarine Zurich AG portfolio holds 14 securities valued at $317,370.00. The Financial Services sector represents the largest allocation, while the top positions account for a significant portion of the total portfolio weight.