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 13 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES | 22.41% | - | 2,000,000 | $28.05M | No quote | No quote |
| 2 | AXP | AMERICAN EXPRESS CO | 15.14% | - | 272,430 | $18.95M | $69.55 | No quote |
| 3 | - | BERKSHIRE HATHAWAY INC. DELCUSIP 84670702 | 14.83% | - | 140,600 | $18.57M | No quote | No quote |
| 4 | GMWSB | GENERAL MOTORS CO | 13.02% | - | 1,000,000 | $16.29M | No quote | No quote |
| 5 | BAC | BANK OF AMERICA CORP | 7.93% | - | 590,000 | $9.93M | $16.83 | No quote |
| 6 | MA | MASTERCARD INC | 5.11% | - | 65,750 | $6.4M | $97.35 | No quote |
| 7 | WFC | WELLS FARGO & CO NEW | 4.99% | - | 115,000 | $6.25M | $54.36 | No quote |
| 8 | - | BERKSHIRE HATHAWAY INC. DELCUSIP 84670108 | 4.74% | - | 30 | $5.93M | No quote | No quote |
| 9 | C | CITIGROUP INC | 4.38% | - | 106,000 | $5.49M | $51.75 | No quote |
| 10 | ZINC | HORSEHEAD HOLDING CORP | 2.16% | - | 1,320,000 | $2.71M | No quote | No quote |
| 11 | PKX | POSCO | 1.98% | - | 70,000 | $2.48M | No quote | No quote |
| 12 | WFCWS | WELLS FARGO & CO NEW | 1.80% | - | 110,000 | $2.25M | No quote | No quote |
| 13 | BAC | BANK OF AMERICA CORP | 1.49% | - | 320,000 | $1.86M | $5.82 | No quote |