The Nolan Ryan index is down 24.48% over this period, -0.50% in the last 7 days against -24.30% over 30. It sits 24.53% below the period high (92 on Sep 15) and 0.48% above the period low (Oct 5).
Downtrend in place; until the 7-day move turns positive, expect the low to be retested.
Arithmetic over the index level series (7/30-day change, daily volatility, drawdown, distance from the period high and low). Not investment advice.
1991 Nolan Ryan PSA 10Stadium Club · $763+166.74%
1970 Nolan Ryan PSA 6Topps · $653+134.79%
1981 Nolan Ryan PSA 10O Pee Chee · $8,699+130.97%
1990 Nolan Ryan PSA 10Classic · $111+121.00%
1990 Nolan Ryan PSA 10Topps · $79+110.76%
1985 Nolan Ryan PSA 10Topps Tiffany · $915+103.19%
1992 Nolan Ryan PSA 10Classic Best · $91+101.33%
2019 Nolan Ryan PSA 10Topps Heritage 1970 Super Box Loaders · $84-74.47%
1989 Nolan Ryan PSA 10Donruss Baseball's Best · $30-74.03%
1984 Nolan Ryan PSA 10Topps Tiffany · $1,401-63.71%
1993 Nolan Ryan PSA 10Pinnacle · $30-61.96%
1990 Nolan Ryan PSA 10Topps Tiffany · $73-61.32%
2023 Nolan Ryan PSA 10Topps Update All Aces · $73-61.18%2025 Nolan Ryan PSA 10Leaf Spectacular Signatures · $390-60.41%
1988 Nolan Ryan PSA 10Topps Tiffany · $60-55.63%
1992 Nolan Ryan PSA 10Topps Gold · $91-49.78%
1993 Nolan Ryan PSA 10Topps · $92-49.17%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 201 most-traded cards in this basket; the recent window covers all 806 tracked cards. Not investment advice.
Track them against this index — live values, a 0–1000 protection score, and a broker-ready insurance schedule. Free.