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 7 of 20 rows. Rows without a quote are marked unavailable.
| 1 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 15.36% | New | 140,600 | $22.92M | No quote | No quote |
| 2 | AXP | AMERICAN EXPRESS CO | 13.53% | - | 272,430 | $20.18M | $74.08 | No quote |
| 3 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 12.22% | - | 2,000,000 | $18.23M | No quote | No quote |
| 4 | GMWSB | GENERAL MTRS CO | 11.50% | - | 1,000,000 | $17.16M | No quote | No quote |
| 5 | BAC | BANK AMER CORP | 8.74% | New | 590,000 | $13.04M | $22.10 | No quote |
| 6 | RACE | FERRARI N V | 7.80% | - | 200,000 | $11.64M | $58.17 | No quote |
| 7 | SRG | SERITAGE GROWTH PPTYS | 5.15% | - | 180,000 | $7.69M | No quote | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 4.91% | New | 30 | $7.32M | No quote | No quote |
| 9 | MA | MASTERCARD INCORPORATED | 4.55% | - | 65,750 | $6.79M | $103.25 | No quote |
| 10 | WFC | WELLS FARGO & CO NEW | 4.25% | - | 115,000 | $6.34M | $55.11 | No quote |
| 11 | C | CITIGROUP INC | 4.22% | - | 106,000 | $6.3M | $59.43 | No quote |
| 12 | PKX | POSCO | 2.47% | - | 70,000 | $3.68M | No quote | No quote |
| 13 | BACWSA | BANK AMER CORP | 2.13% | New | 320,000 | $3.18M | No quote | No quote |
| 14 | MCO | MOODYS CORP | 1.58% | - | 25,000 | $2.36M | $94.28 | No quote |
| 15 | WFCWS | WELLS FARGO & CO NEW | 1.57% | - | 110,000 | $2.35M | No quote | No quote |
| 16 | ENLC | ENLINK MIDSTREAM LLC | 0.01% | - | 719 | $14K | No quote | No quote |
| 20 | - | BERKSHIRE HATHAWAY INC DELCUSIP 84670702 | - | Sold | 0 | $0 | No quote | No quote |
| 19 | - | BERKSHIRE HATHAWAY INC DELCUSIP 84670108 | - | Sold | 0 | $0 | No quote | No quote |
| 18 | BAC | BANK AMER CORP | - | Sold | 0 | $0 | No quote | No quote |
| 17 | BAC | BANK AMER CORP | - | Sold | 0 | $0 | No quote | No quote |