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Guy Spier 13F portfolio summary

Guy Spier of AQUAMARINE CAPITAL MANAGEMENT, LLC has 7 current stock holdings with a reported portfolio value of $135.3M. The portfolio 1 year return is +4.49%. Top holdings include BRK-B (34.57%), BRK-A (15.92%), MA (14.77%), AXP (14.53%), MCO (8.71%).

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Guy Spier

AQUAMARINE CAPITAL MANAGEMENT, LLC
Latest filing: 2026-03-31

Guy Spier runs AQUAMARINE CAPITAL MANAGEMENT, LLC and currently holds 7 stock positions, which is fewer than the average of 496 among the investors we track. The portfolio is valued at approximately $135.30M. Their top 5 holdings are various securities, which collectively represent 0.0% of the portfolio's total weight. Guy Spier ranks #31 out of 75 investors tracked based on their composite Alpha Score. Their current best-performing position is DJCO (DAILY JOURNAL CORP) with returns of -1.02% from their average buy price, held for approximately 15.0 quarters. Over the past year, Guy Spier's portfolio at AQUAMARINE CAPITAL MANAGEMENT, LLC has delivered returns of +4.49%. Their 3-year annualized return is +62.65%. Looking at the 5-year horizon, Guy Spier has achieved +91.95% annualized returns at AQUAMARINE CAPITAL MANAGEMENT, LLC.

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Top 5 Holdings
No holdings data available
Portfolio Returns
1 Year
+4.49%
#66/75
3 Year
+62.65%
#41/75
5 Year
+91.95%
#15/75

Portfolio Value

$135.30M

Alpha Score

55.6

#31 of 75

Holdings

7

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0 stock holdings

HoldingWeightAvg BuyCurrentReturnQuarter Change