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 9 of 18 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 17.14% | - | 2,000,000 | $35.8M | No quote | No quote |
| 2 | BRK-B | BERKSHIRE HATHAWAY INC DEL | 13.35% | - | 140,600 | $27.87M | $198.22 | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 12.96% | - | 272,430 | $27.06M | $99.31 | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 11.11% | - | 1,000,000 | $23.19M | No quote | No quote |
| 5 | RACE | FERRARI N V | 10.06% | - | 200,000 | $21M | $104.98 | No quote |
| 6 | BAC | BANK AMER CORP | 8.34% | - | 590,000 | $17.42M | $29.52 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 4.77% | - | 65,750 | $9.95M | $151.35 | No quote |
| 8 | BRK-A | BERKSHIRE HATHAWAY INC DEL | 4.28% | - | 30 | $8.93M | $297600.00 | No quote |
| 9 | C | CITIGROUP INC | 3.78% | - | 106,000 | $7.89M | $74.41 | No quote |
| 10 | WFC | WELLS FARGO & CO NEW | 3.34% | - | 115,000 | $6.98M | $60.67 | No quote |
| 11 | BACWSA | BANK AMER CORP | 2.69% | - | 320,000 | $5.62M | No quote | No quote |
| 12 | MCO | MOODYS CORP | 1.77% | - | 25,000 | $3.69M | $147.60 | No quote |
| 13 | PKX | POSCO | 1.68% | Reduce -35.7% | 45,000 | $3.52M | No quote | No quote |
| 14 | WFCWS | WELLS FARGO & CO NEW | 1.45% | - | 110,000 | $3.02M | No quote | No quote |
| 15 | TERP | TERRAFORM PWR INC | 1.32% | Add +10.4% | 231,183 | $2.77M | No quote | No quote |
| 16 | TOO | TEEKAY OFFSHORE PARTNERS L P | 1.13% | New | 1,000,000 | $2.36M | No quote | No quote |
| 17 | SRG | SERITAGE GROWTH PPTYS | 0.85% | - | 43,869 | $1.78M | No quote | No quote |
| 18 | ENLC | ENLINK MIDSTREAM LLC | - | Sold | 0 | $0 | No quote | No quote |