Slabline™
Graded-card protection score
Slabline™The Multi-Sport index is flat 0.00% over this period. It sits 0.00% below the period high (100 on Sep 13) and 0.00% above the period low (Sep 13).
Range-bound: no clear direction over this period — moves in the underlying rookie and grade baskets matter more than the index.
Arithmetic over the index level series (7/30-day change, daily volatility, drawdown, distance from the period high and low). Not investment advice.
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 1 most-traded cards in this basket; the recent window covers all 27 tracked cards. Not investment advice.
Track them against this index — live values, a 0–1000 protection score, and a broker-ready insurance schedule. Free.
