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 | 18.18% | - | 2,000,000 | $35.82M | No quote | No quote |
| 2 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 13.08% | - | 140,600 | $25.78M | No quote | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 12.51% | - | 272,430 | $24.64M | $90.46 | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 11.39% | - | 1,000,000 | $22.45M | No quote | No quote |
| 5 | RACE | FERRARI N V | 11.21% | - | 200,000 | $22.09M | $110.46 | No quote |
| 6 | BAC | BANK AMER CORP | 7.59% | - | 590,000 | $14.95M | $25.34 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 4.71% | - | 65,750 | $9.28M | $141.20 | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 4.18% | - | 30 | $8.24M | No quote | No quote |
| 9 | C | CITIGROUP INC | 3.91% | - | 106,000 | $7.71M | $72.74 | No quote |
| 10 | WFC | WELLS FARGO CO NEW | 3.22% | - | 115,000 | $6.34M | $55.15 | No quote |
| 11 | PKX | POSCO | 2.47% | - | 70,000 | $4.86M | No quote | No quote |
| 12 | BACWSA | BANK AMER CORP | 2.15% | - | 320,000 | $4.24M | No quote | No quote |
| 13 | MCO | MOODYS CORP | 1.77% | - | 25,000 | $3.48M | $139.20 | No quote |
| 14 | TERP | TERRAFORM PWR INC | 1.41% | - | 209,435 | $2.77M | No quote | No quote |
| 15 | WFCWS | WELLS FARGO CO NEW | 1.20% | - | 110,000 | $2.37M | No quote | No quote |
| 16 | SRG | SERITAGE GROWTH PPTYS | 1.03% | - | 43,869 | $2.02M | No quote | No quote |
| 17 | ENLC | ENLINK MIDSTREAM LLC | 0.01% | - | 719 | $12K | No quote | No quote |