Aquamarine Capital Management, LLC 13F holdings and portfolio analysis

準備完了Aquamarine Capital Management, LLC · Guy Spier

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Baseline

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Baselinetested
戦略Q&Aリファレンス3件のリファレンスQ&A

このファンドについて事前生成されたQ&A。独自分析の参照コンテキストとして活用してください。

baseline13FChat AI
What does directly following the disclosed baseline portfolio expose an investor to?

Directly following the baseline means accepting an extremely top-heavy financials portfolio. In the baseline artifact, the top 5 holdings are 100% of assets: AXP 27.04%, MA 25.68%, BRK.A 25.47%, MCO 15.5%, and DJCO 6.31%. Sector exposure is 93.69% Financials and 6.31% Information Technology. That concentration helped produce 16.58% annualizedReturn and 336.42% totalReturn, but it also left beta at 1.05 and maxDrawdown at -37.91, so the investor is effectively buying a handful of high-conviction financial franchise names with substantial single-sector and single-name risk.

↳Show how each baseline top holding contributed to return and drawdown over the backtest.
baseline13FChat AI
Which recent baseline periods best explain the risk-return trade-off?

Three recent baseline periods stand out. First, 2025-06-30 delivered 18.54% optimizedReturn versus 4.2% benchmarkReturn, a +14.33 pt excess return with only 5.85 turnover, showing how the concentrated structure can add large upside when holdings work. Second, 2023-12-31 returned 13.41% versus 4.96% for SPY, a +8.45 pt excess return with 7.97 turnover, another strong payoff from concentration. The trade-off shows up in weaker quarters like 2024-03-31, when baseline returned -2.44% against SPY’s 2.31% for a -4.75 pt excess return, and 2025-03-31, when it lagged by -4.78 pts. Those swings fit the overall profile of 16.58% annualized return but a -37.91% max drawdown.

↳Plot the best and worst quarterly excess-return periods for the baseline and tie them back to holdings or sector concentration.
baseline13FChat AI
What should a user inspect next before deciding whether the baseline is acceptable?

A user should inspect concentration path, sector dependency, and lag risk before accepting the baseline. Concentration is already absolute in the baseline artifact, with top5 at 100% and Financials at 93.69%, so the next question is whether that concentration has been stable or rising. Users should also inspect periodPerformance because strong gains came with uneven timing, including +14.33 pts excess in 2025-06-30 but -4.75 pts in 2024-03-31. Finally, the risk notes matter: the backtest uses delayed filing implementation and still posted -37.91% maxDrawdown and 302 trades with totalEstimatedCost 1.206, so copying it is not the same as owning the manager’s real-time book.

↳Show concentration, turnover, and excess return by quarter for the baseline so I can judge whether the lagged replication is acceptable.
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