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Bob Gibson card market index

Top gainers1M

1971 Bob Gibson PSA 10Topps Super · $1,510+13.78%1970 Bob Gibson PSA 10Topps · $1,439+13.12%1972 Bob Gibson PSA 10Topps · $2,750+9.49%1988 Bob Gibson PSA 10Topps · $30+9.49%1961 Bob Gibson PSA 10Topps · $5,274+3.73%2024 Bob Gibson PSA 10Topps Heritage 1975 Retires · $37+2.73%2024 Bob Gibson PSA 10Topps Heritage 1975 Retires · $36+1.80%

Top decliners1M

1962 Bob Gibson PSA 10Topps · $19,923-44.10%1971 Bob Gibson PSA 10O Pee Chee · $2,194-22.01%1965 Bob Gibson PSA 10Topps · $4,574-15.57%1964 Bob Gibson PSA 10Topps · $5,434-10.95%1971 Bob Gibson PSA 10Topps · $5,894-6.19%1963 Bob Gibson PSA 10Fleer · $4,367-5.77%1974 Bob Gibson PSA 10Topps · $3,076-2.36%1973 Bob Gibson PSA 10Topps · $1,358-1.28%2024 Bob Gibson PSA 10Topps Heritage 1975 Retires · $37-0.37%2024 Bob Gibson PSA 10Topps Heritage 1975 Retires · $37-0.24%

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 6 most-traded cards in this basket; the recent window covers all 44 tracked cards. Not investment advice.

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