The DC index is up 13.07% over this period, -1.44% in the last 7 days against +0.54% over 30. It sits 1.56% below the period high (115 on Oct 5) and 13.59% above the period low (Jul 3).
Gains for the period are intact but the latest week is soft — a pause rather than a reversal unless the low gives way.
Arithmetic over the index level series (7/30-day change, daily volatility, drawdown, distance from the period high and low). Not investment advice.
1966 Decoy PSA 10Topps Batman Black Bat · $70-74.06%
1966 Poison Pellet PSA 10Topps Batman Black Bat · $40-73.78%
1966 Robin - Boy Wonder PSA 10Topps Batman Black Bat · $368-72.74%
1966 Monstrous Illusion PSA 10Topps Batman Black Bat · $28-72.00%
1966 "To the Batcave" PSA 10Topps Batman Black Bat · $65-71.11%
1966 Deadly Robot PSA 10Topps Batman Black Bat · $30-70.00%
1966 Crime Czar PSA 10Topps Batman Black Bat · $50-63.55%
1989 The Enemies Clash PSA 10Topps Batman Reissue · $72-1.98%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 13 most-traded cards in this basket; the recent window covers all 561 tracked cards. Not investment advice.
Track them against this index — live values, a 0–1000 protection score, and a broker-ready insurance schedule. Free.