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.
Get email alerts when Guy Spier files a new 13F — sign in or create a free account.
Updated 2026-09-19 from SEC 13F data.
Live quotes available for 8 of 15 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 16.37% | - | 2,000,000 | $29.09M | No quote | No quote |
| 2 | BRK-B | BERKSHIRE HATHAWAY INC DEL | 16.16% | - | 140,600 | $28.71M | $204.18 | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 11.93% | - | 222,430 | $21.2M | $95.32 | No quote |
| 4 | RACE | FERRARI N V | 11.20% | - | 200,000 | $19.91M | $99.53 | No quote |
| 5 | GMWSB | GENERAL MTRS CO | 8.83% | - | 1,000,000 | $15.69M | No quote | No quote |
| 6 | BAC | BANK AMER CORP | 8.18% | - | 590,000 | $14.54M | $24.64 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 6.98% | - | 65,750 | $12.4M | $188.65 | No quote |
| 8 | BRK-A | BERKSHIRE HATHAWAY INC DEL | 5.17% | - | 30 | $9.18M | $306000.00 | No quote |
| 9 | SRG | SERITAGE GROWTH PPTYS | 4.80% | Add +23.4% | 263,869 | $8.53M | No quote | No quote |
| 10 | WFC | WELLS FARGO CO NEW | 3.94% | Add +31.9% | 151,741 | $6.99M | $46.08 | No quote |
| 11 | BACWSA | BANK AMER CORP | 2.31% | - | 320,000 | $4.11M | No quote | No quote |
| 12 | MCO | MOODYS CORP | 1.97% | - | 25,000 | $3.5M | $140.04 | No quote |
| 13 | TERP | TERRAFORM PWR INC | 1.46% | - | 231,183 | $2.59M | No quote | No quote |
| 14 | TOO | TEEKAY OFFSHORE PARTNERS L P | 0.68% | - | 1,000,000 | $1.21M | No quote | No quote |
| 15 | WFCWS | WELLS FARGO CO NEW | - | Sold | 0 | $0 | No quote | No quote |