Aquamarine Capital Management, LLC
Regulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2022, never from the firm's own description.
Closest benchmark: the S&P 500 as of 2022-06-30, active share 95.3%; sector active share 73.6% against the combined 13F book's sector weights.
Over time 10 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.
View clone backtestPortfolio Concentration
12 tracked positions · as of Jun 30, 2022 · Δ vs Mar 31, 2022Portfolio Trend
Sector Breakdown
As of Jun 30, 2022| Sector | % Portfolio | Value |
|---|---|---|
| Financial Services | 77.4% | $131,754,326 |
| Consumer Cyclical | 11.8% | $20,078,200 |
| Technology | 8.2% | $14,032,200 |
| Real Estate | 1.5% | $2,605,000 |
| Communication Services | 1.0% | $1,743,408 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedTrimmed
Positions the filer reducedNew Positions
Positions the filer opened this quarterSold Out
Positions the filer fully exited| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| — | 30,000 | $1,161,000 | ||
| No positions match the current search. | ||||
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Held | 140,600 | $38,386,612 | 22.55% | |
| AXP |
American Express Co
Financial Services
|
Held | 210,000 | $29,110,200 | 17.10% | |
| BAC |
Bank Of America Corp
Financial Services
|
Held | 767,845 | $23,903,014 | 14.04% | |
| MA |
Mastercard Inc
Financial Services
|
Held | 65,750 | $20,742,810 | 12.19% | |
| RACE |
Ferrari N.V.
Consumer Cyclical
|
Held | 80,000 | $14,678,400 | 8.62% | |
| BRK-A |
Berkshire Hathaway Inc
Financial Services
|
Held | 30 | $12,268,500 | 7.21% | |
| MU |
Micron Technology Inc
Technology
|
Held | 200,000 | $11,056,000 | 6.50% | |
| MCO |
Moodys Corp
Financial Services
|
Held | 27,000 | $7,343,190 | 4.31% | |
| BABA |
Alibaba Group Holding Ltd
Consumer Cyclical
|
Held | 47,500 | $5,399,800 | 3.17% | |
| DJCO |
Daily Journal Corp
Technology
|
Held | 11,500 | $2,976,200 | 1.75% | |
| SRG |
Seritage Growth Properties
Real Estate
|
Held | 500,000 | $2,605,000 | 1.53% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Held | 800 | $1,743,408 | 1.02% |
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.