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.
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Updated 2026-06-06 from SEC 13F data.
Live quotes available for 6 of 16 rows. Rows without a quote are marked unavailable.
| 1 | AXP | AMERICAN EXPRESS CO | 16.79% | - | 272,430 | $25.35M | $93.04 | No quote |
| 2 | FCAU | FIAT CHRYSLER AUTOMOBILES | 15.38% | - | 2,000,000 | $23.23M | No quote | No quote |
| 3 | BRK/B | BERKSHIRE HATHAWAY INC. DELCUSIP 084670702 | 13.98% | - | 140,600 | $21.11M | No quote | No quote |
| 4 | ZINC | HORSEHEAD HOLDING CORP | 12.79% | - | 1,220,000 | $19.31M | No quote | No quote |
| 5 | BAC | BANK OF AMERICA CORP | 6.99% | - | 590,000 | $10.56M | $17.89 | No quote |
| 6 | GMWSB | GENERAL MOTORS CO | 5.07% | - | 700,000 | $7.65M | No quote | No quote |
| 7 | BRK/A | BERKSHIRE HATHAWAY INC. DELCUSIP 084670108 | 4.49% | - | 30 | $6.78M | No quote | No quote |
| 8 | WFC | WELLS FARGO & CO NEW | 4.18% | - | 115,000 | $6.3M | $54.82 | No quote |
| 9 | GS | GOLDMAN SACHS GROUP INC | 3.92% | - | 30,502 | $5.91M | $193.82 | No quote |
| 10 | C | CITIGROUP INC | 3.80% | - | 106,000 | $5.74M | $54.11 | No quote |
| 11 | MA | MASTERCARD INC | 3.75% | - | 65,750 | $5.67M | $86.16 | No quote |
| 12 | PKX | POSCO | 2.96% | - | 70,000 | $4.47M | No quote | No quote |
| 13 | DTV | DIRECTV | 2.87% | - | 50,000 | $4.34M | No quote | No quote |
| 14 | WFCWS | WELLS FARGO & CO | 1.55% | - | 110,000 | $2.34M | No quote | No quote |
| 15 | BACWSA | BANK OF AMERICA CORP | 1.48% | - | 320,000 | $2.24M | No quote | No quote |
| 16 | CRESW | CRESUD SA COMERCIAL | 0.00% | - | 271,944 | $3K | No quote | No quote |