Slabline™
Graded-card protection score
Slabline™The Pop Culture index is up 4.48% over this period, +4.96% in the last 7 days against +4.48% over 30. It sits 2.23% below the period high (125 on Oct 21) and 14.82% above the period low (Oct 26).
Rising prices with a positive week suggest the move has support; the period high is the level to watch.
Arithmetic over the index level series (7/30-day change, daily volatility, drawdown, distance from the period high and low). Not investment advice.
1996 Michael Jordan PSA 10Upper Deck Space Jam · $340+171.60%
1988 Dinosaurs PSA 10Topps Dinosaurs Attack! · $54+0.48%1991 Baseball Appreciation PSA 10Upper Deck Comic Ball 2 · $83+0.41%2021 Bugs, Lola and LeBron (Cartoon) PSA 10Upper Deck Space Jam A New Legacy · $32+0.34%2021 Trophy Trey [Gold] PSA 10Topps Chrome Garbage Pail Kids · $133+0.11%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 10 most-traded cards in this basket; the recent window covers all 50 tracked cards. Not investment advice.
Track them against this index — live values, a 0–1000 protection score, and a broker-ready insurance schedule. Free.
