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
- +13.66%
- 3-year
- +68.33%
- 5-year
- +72.54%
- 3-year vs S&P 500
- +0.40%
- 5-year vs S&P 500
- +0.56%
- 5-year top 5
- +65.63%
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 2026-06-06 from SEC 13F data.
Live quotes available for 7 of 17 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 19.55% | - | 2,000,000 | $40.67M | No quote | No quote |
| 2 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 13.48% | - | 140,600 | $28.05M | No quote | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 12.21% | - | 272,430 | $25.41M | $93.28 | No quote |
| 4 | RACE | FERRARI N V | 11.55% | - | 200,000 | $24.04M | $120.21 | No quote |
| 5 | GMWSB | GENERAL MTRS CO | 8.99% | - | 1,000,000 | $18.7M | No quote | No quote |
| 6 | BAC | BANK AMER CORP | 8.50% | - | 590,000 | $17.69M | $29.99 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 5.53% | - | 65,750 | $11.52M | $175.16 | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 4.31% | - | 30 | $8.97M | No quote | No quote |
| 9 | C | CITIGROUP INC | 3.44% | - | 106,000 | $7.16M | $67.50 | No quote |
| 10 | WFC | WELLS FARGO CO NEW | 2.90% | - | 115,000 | $6.03M | $52.41 | No quote |
| 11 | BACWSA | BANK AMER CORP | 2.79% | - | 320,000 | $5.81M | No quote | No quote |
| 12 | MCO | MOODYS CORP | 1.94% | - | 25,000 | $4.03M | $161.32 | No quote |
| 13 | TERP | TERRAFORM PWR INC | 1.19% | - | 231,183 | $2.48M | No quote | No quote |
| 14 | TOO | TEEKAY OFFSHORE PARTNERS L P | 1.09% | - | 1,000,000 | $2.27M | No quote | No quote |
| 15 | WFCWS | WELLS FARGO CO NEW | 1.01% | - | 110,000 | $2.11M | No quote | No quote |
| 16 | PKX | POSCO | 0.76% | Reduce -55.6% | 20,000 | $1.58M | No quote | No quote |
| 17 | SRG | SERITAGE GROWTH PPTYS | 0.75% | - | 43,869 | $1.56M | No quote | No quote |