Frequently asked
What does the XY Black Star Promos · PSA 9 track?
228 XY Black Star Promos cards graded PSA 9, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 458.14.
How has the XY Black Star Promos · PSA 9 moved?
It is up 11.7% over the past month and up 358.1% year to date.
Which cards carry the most weight in the XY Black Star Promos · PSA 9?
Pikachu EX (PSA 9) at 18.8%, Charizard EX (PSA 9) at 13.4% and Blastoise EX (PSA 9) at 7.6% of the index.
How is the XY Black Star Promos · PSA 9 calculated?
The level is the constituents' combined market cap (fair value times graded population) divided by a divisor, with each card's weight dampened by the confidence of its fair value. The index rebalances weekly and the divisor absorbs every membership and population change, so only prices move the level. Values are recomputed daily from graded sales.