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Sandy Koufax card market index

Top gainers1M

1990 Sandy Koufax PSA 10Topps · $38+26.71%1957 Sandy Koufax PSA 10Topps · $63,631+21.87%1959 Sandy Koufax PSA 10Topps · $17,474+18.65%1961 Sandy Koufax PSA 10Topps · $13,428+12.39%1955 Sandy Koufax PSA 10Topps · $387,592+10.31%1965 Sandy Koufax PSA 10Topps · $11,952+9.16%1965 Sandy Koufax PSA 10Topps Embossed · $1,933+5.01%1960 Sandy Koufax PSA 10Topps · $19,724+0.18%

Top decliners1M

1963 Sandy Koufax PSA 10Topps · $11,032-21.64%1964 Sandy Koufax PSA 10Topps · $8,232-11.24%1964 Sandy Koufax PSA 10Topps Giants · $16,394-10.94%1963 Sandy Koufax PSA 10Fleer · $9,513-7.66%1962 Sandy Koufax PSA 10Topps · $10,823-3.52%1958 Sandy Koufax PSA 10Topps · $37,582-1.21%2025 Sandy Koufax PSA 10Topps K Zone SP Die-Cut · $315-1.16%2025 Sandy Koufax PSA 10Topps All Aces · $1,124-0.91%2025 Sandy Koufax PSA 10Topps Archives · $36-0.82%

Value-weighted index, base 100 at the window start: the sum of the basket's observed values against the prior day's, chained daily, each card's move capped so one outlier can't dominate. Values come from real comparable sales resolved on Slabline card pages. The window deepens automatically as history accumulates. Long-run history reflects the 2 most-traded cards in this basket; the recent window covers all 35 tracked cards. Not investment advice.

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