Frequently asked
What does the XY · Ultra Rare · Composite track?
56 XY Ultra Rare cards graded PSA 7 to PSA 10, weighted by market cap. It started at 100.00 on 2026-08-08 and stands at 132.47.
How has the XY · Ultra Rare · Composite moved?
It is up 10.2% over the past month and up 32.5% year to date.
Which cards carry the most weight in the XY · Ultra Rare · Composite?
Blastoise EX (PSA 10) at 18.4%, Venusaur EX (PSA 10) at 14.1% and Blastoise EX (PSA 9) at 10.6% of the index.
How is the XY · Ultra Rare · Composite 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.