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Aquamarine Financial (Cayman) Ltd

Adviser
Location
Grand Cayman, E9
Portfolio Value
Mid $1,810,841,215
Diversification
Moderately concentrated
Filing Date
Global Rank
#1,711 / 8,818 ▲ 97
Top Industry
Banks - Regional 61.3%
3Y Alpha vs SPY
-4.3%
Period ended 4 months ago
Filed Aug 12, 2026 · 3mo
4 quarters · since Sep 2025

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Adviser
Schedule 13G, Oct 8, 2026

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Concentrated
The top 10 positions are 98.8% of the book (60%+)
Turnover
Turnover unknown
It needs four straight quarters of measured turnover
Horizon
Short horizon
Value-weighted holding period 3.8 quarters (under 4)

Closest benchmark: every 13F filer's combined book, active share 99.9%; sector active share 79.9% against the combined 13F book's sector weights.

Over time 4 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

16 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
35.8%
−4.1 pts
Top 5
87.7%
−1.1 pts
Top 10
98.8%
+0.0 pts
HHI
2,447
Sep 2025 → Jun 2026 · range 2,447 – 3,487
Moderately concentrated−161

Portfolio Trend

4 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Financial Services 61.3% $1,110,468,660
Energy 31.6% $572,793,730
Basic Materials 3.7% $67,573,730
Technology 1.8% $32,324,564
Healthcare 1.3% $22,957,695
Consumer Cyclical 0.2% $4,435,830
Utilities 0.0% $287,006

Last Quarter's Activity

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Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
9 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
No qualifying positions this quarter.

New Positions

Positions the filer opened this quarter
1 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
1 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
16 tracked positions · $1,810,841,215 total · filing declares 17 positions · $1,811,322,571 · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.