Guy Spier - Aquamarine Capital
As of Q2 2026, Guy Spier reported 7 long-equity positions worth $144.09M in aggregate.
Copy-investor backtest
- Latest quarter
- +3.96%
- 1-year
- +2.66%
- 3-year
- +75.51%
- 5-year
- +66.51%
- 3-year vs S&P 500
- +1.42%
- 5-year vs S&P 500
- +1.79%
- 5-year top 5
- +55.17%
Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.
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Updated 2026-09-19 from SEC 13F data.
Live quotes available for 8 of 11 rows. Rows without a quote are marked unavailable.
| 1 | RACE | FERRARI N V | 16.80% | - | 200,000 | $32.47M | $162.34 | No quote |
| 2 | BRK-B | BERKSHIRE HATHAWAY INC DEL | 15.51% | - | 140,600 | $29.97M | $213.17 | No quote |
| 3 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 14.43% | - | 2,000,000 | $27.89M | No quote | No quote |
| 4 | AXP | AMERICAN EXPRESS CO | 14.21% | - | 222,430 | $27.46M | $123.44 | No quote |
| 5 | BAC | BANK AMER CORP | 11.53% | - | 767,845 | $22.27M | $29.00 | No quote |
| 6 | MA | MASTERCARD INC | 9.00% | - | 65,750 | $17.39M | $264.53 | No quote |
| 7 | SRG | SERITAGE GROWTH PPTYS | 6.67% | - | 300,000 | $12.89M | No quote | No quote |
| 8 | BRK-A | BERKSHIRE HATHAWAY INC DEL | 4.94% | - | 30 | $9.55M | $318366.67 | No quote |
| 9 | WFC | WELLS FARGO CO NEW | 3.72% | - | 151,741 | $7.18M | $47.32 | No quote |
| 10 | MCO | MOODYS CORP | 2.53% | - | 25,000 | $4.88M | $195.32 | No quote |
| 11 | TOO | TEEKAY OFFSHORE PARTNERS L P | 0.65% | - | 1,000,000 | $1.26M | No quote | No quote |