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 6 of 14 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES | 20.40% | - | 2,000,000 | $29.28M | No quote | No quote |
| 2 | AXP | AMERICAN EXPRESS CO | 14.75% | - | 272,430 | $21.17M | $77.72 | No quote |
| 3 | - | BERKSHIRE HATHAWAY INC. DELCUSIP 84670702 | 13.33% | - | 140,600 | $19.14M | No quote | No quote |
| 4 | GMWSB | GENERAL MOTORS CO | 11.11% | - | 1,000,000 | $15.95M | No quote | No quote |
| 5 | ZINC | HORSEHEAD HOLDING CORP | 10.78% | - | 1,320,000 | $15.47M | No quote | No quote |
| 6 | BAC | BANK OF AMERICA CORP | 7.00% | - | 590,000 | $10.04M | $17.02 | No quote |
| 7 | WFC | WELLS FARGO & CO NEW | 4.51% | - | 115,000 | $6.47M | $56.24 | No quote |
| 9 | MA | MASTERCARD INC | 4.28% | - | 65,750 | $6.15M | $93.48 | No quote |
| 8 | - | BERKSHIRE HATHAWAY INC. DELCUSIP 84670108 | 4.28% | - | 30 | $6.15M | No quote | No quote |
| 10 | C | CITIGROUP INC | 4.08% | - | 106,000 | $5.86M | $55.24 | No quote |
| 11 | PKX | POSCO | 2.39% | - | 70,000 | $3.43M | No quote | No quote |
| 12 | WFCWS | WELLS FARGO & CO | 1.72% | - | 110,000 | $2.47M | No quote | No quote |
| 13 | BAC | BANK OF AMERICA CORP | 1.38% | - | 320,000 | $1.97M | $6.17 | No quote |
| 14 | CRESW | CRESUD SA COMERCIAL | - | Sold | 0 | $0 | No quote | No quote |