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.
Get email alerts when Guy Spier files a new 13F — sign in or create a free account.
Updated 2026-06-06 from SEC 13F data.
Live quotes available for 8 of 16 rows. Rows without a quote are marked unavailable.
| 1 | - | BERKSHIRE HATHAWAY INC DELCUSIP 84670702 | 18.37% | - | 140,600 | $20.36M | No quote | No quote |
| 2 | AXP | AMERICAN EXPRESS CO | 14.93% | - | 272,430 | $16.55M | $60.76 | No quote |
| 3 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 11.01% | - | 2,000,000 | $12.2M | No quote | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 9.45% | - | 1,000,000 | $10.47M | No quote | No quote |
| 5 | RACE | FERRARI N V | 7.34% | - | 200,000 | $8.14M | $40.70 | No quote |
| 6 | BAC | BANK AMER CORP | 7.06% | - | 590,000 | $7.83M | $13.27 | No quote |
| 7 | - | BERKSHIRE HATHAWAY INC DELCUSIP 84670108 | 5.87% | - | 30 | $6.51M | No quote | No quote |
| 8 | MA | MASTERCARD INC | 5.22% | - | 65,750 | $5.79M | $88.06 | No quote |
| 9 | WFC | WELLS FARGO & CO NEW | 4.91% | - | 115,000 | $5.44M | $47.33 | No quote |
| 10 | SRG | SERITAGE GROWTH PPTYS | 4.50% | Add +33.3% | 100,000 | $4.98M | No quote | No quote |
| 11 | C | CITIGROUP INC | 4.05% | - | 106,000 | $4.49M | $42.39 | No quote |
| 12 | PKX | POSCO | 2.81% | - | 70,000 | $3.12M | No quote | No quote |
| 13 | MCO | MOODYS CORP | 2.11% | - | 25,000 | $2.34M | $93.72 | No quote |
| 14 | WFCWS | WELLS FARGO & CO NEW | 1.35% | - | 110,000 | $1.49M | No quote | No quote |
| 15 | BAC | BANK AMER CORP | 1.00% | - | 320,000 | $1.11M | $3.48 | No quote |
| 16 | ENLC | ENLINK MIDSTREAM LLC | 0.01% | - | 719 | $11K | No quote | No quote |