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 16 rows. Rows without a quote are marked unavailable.
| 1 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 14.44% | - | 140,600 | $23.44M | No quote | No quote |
| 2 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 13.46% | - | 2,000,000 | $21.84M | No quote | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 13.28% | - | 272,430 | $21.55M | $79.11 | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 11.00% | - | 1,000,000 | $17.85M | No quote | No quote |
| 5 | RACE | FERRARI N V | 9.16% | - | 200,000 | $14.86M | $74.31 | No quote |
| 6 | BAC | BANK AMER CORP | 8.58% | - | 590,000 | $13.92M | $23.59 | No quote |
| 7 | SRG | SERITAGE GROWTH PPTYS | 4.79% | - | 180,000 | $7.77M | No quote | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 4.62% | - | 30 | $7.5M | No quote | No quote |
| 9 | MA | MASTERCARD INCORPORATED | 4.56% | - | 65,750 | $7.4M | $112.47 | No quote |
| 10 | WFC | WELLS FARGO & CO NEW | 3.95% | - | 115,000 | $6.4M | $55.66 | No quote |
| 11 | C | CITIGROUP INC | 3.91% | - | 106,000 | $6.34M | $59.82 | No quote |
| 12 | PKX | POSCO | 2.78% | - | 70,000 | $4.52M | No quote | No quote |
| 13 | BACWSA | BANK AMER CORP | 2.23% | - | 320,000 | $3.62M | No quote | No quote |
| 14 | MCO | MOODYS CORP | 1.73% | - | 25,000 | $2.8M | $112.04 | No quote |
| 15 | WFCWS | WELLS FARGO & CO NEW | 1.50% | - | 110,000 | $2.44M | No quote | No quote |
| 16 | ENLC | ENLINK MIDSTREAM LLC | 0.01% | - | 719 | $14K | No quote | No quote |