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 7 of 17 rows. Rows without a quote are marked unavailable.
| 1 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 17.96% | - | 2,000,000 | $38.17M | No quote | No quote |
| 2 | RACE | FERRARI N V | 12.81% | - | 200,000 | $27.22M | $136.10 | No quote |
| 3 | AXP | AMERICAN EXPRESS CO | 12.56% | - | 272,430 | $26.7M | $98.00 | No quote |
| 4 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 12.35% | - | 140,600 | $26.24M | No quote | No quote |
| 5 | GMWSB | GENERAL MTRS CO | 10.61% | - | 1,000,000 | $22.55M | No quote | No quote |
| 6 | BAC | BANK AMER CORP | 7.83% | - | 590,000 | $16.63M | $28.19 | No quote |
| 7 | MA | MASTERCARD INCORPORATED | 6.08% | - | 65,750 | $12.92M | $196.52 | No quote |
| 8 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 3.98% | - | 30 | $8.46M | No quote | No quote |
| 9 | C | CITIGROUP INC | 3.34% | - | 106,000 | $7.09M | $66.92 | No quote |
| 10 | WFC | WELLS FARGO CO NEW | 3.00% | - | 115,000 | $6.38M | $55.44 | No quote |
| 11 | BACWSA | BANK AMER CORP | 2.46% | - | 320,000 | $5.22M | No quote | No quote |
| 12 | MCO | MOODYS CORP | 2.01% | - | 25,000 | $4.26M | $170.56 | No quote |
| 13 | SRG | SERITAGE GROWTH PPTYS | 1.33% | Add +51.8% | 66,607 | $2.83M | No quote | No quote |
| 14 | TERP | TERRAFORM PWR INC | 1.27% | - | 231,183 | $2.71M | No quote | No quote |
| 15 | TOO | TEEKAY OFFSHORE PARTNERS L P | 1.24% | - | 1,000,000 | $2.64M | No quote | No quote |
| 16 | WFCWS | WELLS FARGO CO NEW | 1.14% | - | 110,000 | $2.42M | No quote | No quote |
| 17 | PKX | POSCO | 0.04% | Reduce -93.6% | 1,281 | $95K | No quote | No quote |