2026 Q2 Portfolio Activity
In 2026 Q2, Aquamarine Zurich AG maintained a portfolio of 7 distinct positions.
Position History
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Total Positions
7
Quarter
2026 Q2
Top Holding
BRK/B (33.9%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-7 of 7
Aquamarine Zurich AG Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
BRK/B
BERKSHIRE HATHA...
|
Financial Services | 33.89% | 34.57% |
#1
Prev: #1
|
7.0 |
—
|
no change | no change |
P
S
|
97,600 | $48,838 |
$267.02
+84.9%
|
2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | ||
|
BRK/A
BERKSHIRE HATHA...
|
Financial Services | 15.59% | 15.92% |
#2
Prev: #2
|
6.5 |
—
|
no change | no change |
P
S
|
30 | $22,466 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | |||
|
AXP
AMERICAN EXPRES...
|
Financial Services | 15.26% | 14.53% |
#3
1
Prev: #4
|
6.0 |
—
|
no change | no change |
P
S
|
65,000 | $21,986 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | |||
|
MA
MASTERCARD INCO...
|
Financial Services | 14.26% | 14.77% |
#4
1
Prev: #3
|
5.5 |
—
|
no change | no change |
P
S
|
40,000 | $20,544 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | |||
|
MCO
MOODYS CORP
|
Financial Services | 8.49% | 8.71% |
#5
Prev: #5
|
4.9 |
—
|
no change | no change |
P
S
|
27,000 | $12,229 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | |||
|
RACE
FERRARI N V
|
Consumer Cyclical | 7.71% | 7.40% |
#6
Prev: #6
|
4.1 |
—
|
no change | no change |
P
S
|
30,000 | $11,114 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 | |||
|
DJCO
DAILY JOURNAL C...
|
Technology | 4.80% | 4.10% |
#7
Prev: #7
|
2.9 |
—
|
no change | no change |
P
S
|
11,500 | $6,914 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-07-10 |
Showing 1-7 of 7 holdings