Research report
Aquamarine Capital Q1 2026 13F Holdings and Activity Report
Verified Q1 2026 13F holdings for Aquamarine Capital, covering institutional activity, data dates, SEC sources, filing limits, and methods.
Aquamarine Capital
Guy Spier
Period
Q2 2026
Portfolio Date
Jun 30, 2026
Stocks Held
7
Market Value
$144.1M
Holdings Value Trend
Q3 2024
Q4 2024
Q1 2025
Q2 2025
Q3 2025
Q4 2025
Q1 2026
Q2 2026
Historical Positions
| Symbol | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 |
|---|---|---|---|---|
| BRK.B | 33.9% | 34.6% | 33.3% | 22.3% |
| BRK.A | 15.6% | 15.9% | 15.3% | 7.1% |
| AXP | 15.3% | 14.5% | 16.3% | 22.0% |
| MA | 14.3% | 14.8% | 15.5% | 11.8% |
| MCO | 8.5% | 8.7% | 9.3% | 4.0% |
| RACE | 7.7% | 7.4% | 6.5% | 9.1% |
| DJCO | 4.8% | 4.1% | 3.8% | 1.7% |
Post-Filing Contributors
Price change since reported price, ranked by portfolio contribution
MCO+10.12%
MA+11.73%
AXP-2.10%
Post-Filing Detractors
Price change since reported price, ranked by portfolio contribution
BRK.B-0.71%
BRK.A-0.57%
Sector Analysis
Financials87.5%
Technology4.8%
Consumer Discretionary7.7%
Trading Summary
No stocks in this category