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 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 14.54% | - | 140,600 | $23.81M | No quote | No quote |
| 2 | AXP | AMERICAN EXPRESS CO | 14.01% | - | 272,430 | $22.95M | $84.24 | No quote |
| 3 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 12.87% | - | 2,000,000 | $21.09M | No quote | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 10.57% | - | 1,000,000 | $17.31M | No quote | No quote |
| 5 | RACE | FERRARI N V | 10.48% | - | 200,000 | $17.17M | $85.86 | No quote |
| 6 | BAC | BANK AMER CORP | 8.74% | - | 590,000 | $14.31M | $24.26 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 4.87% | - | 65,750 | $7.99M | $121.44 | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 4.66% | - | 30 | $7.64M | No quote | No quote |
| 9 | C | CITIGROUP INC | 4.33% | - | 106,000 | $7.09M | $66.88 | No quote |
| 10 | WFC | WELLS FARGO & CO NEW | 3.89% | - | 115,000 | $6.37M | $55.41 | No quote |
| 11 | PKX | POSCO | 2.67% | - | 70,000 | $4.38M | No quote | No quote |
| 12 | BACWSA | BANK AMER CORP | 2.35% | - | 320,000 | $3.85M | No quote | No quote |
| 13 | MCO | MOODYS CORP | 1.86% | - | 25,000 | $3.04M | $121.68 | No quote |
| 14 | TERP | TERRAFORM PWR INC | 1.53% | New | 209,435 | $2.51M | No quote | No quote |
| 15 | WFCWS | WELLS FARGO & CO NEW | 1.49% | - | 110,000 | $2.44M | No quote | No quote |
| 16 | SRG | SERITAGE GROWTH PPTYS | 1.12% | Reduce -75.6% | 43,869 | $1.84M | No quote | No quote |
| 17 | ENLC | ENLINK MIDSTREAM LLC | 0.01% | - | 719 | $13K | No quote | No quote |