Frequently asked
What does the Japanese Promos 1998-99 · PSA 9 track?
11 Japanese Promos 1998-99 cards graded PSA 9, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 93.63.
How has the Japanese Promos 1998-99 · PSA 9 moved?
It is down 7.9% over the past month and down 6.4% year to date.
Which cards carry the most weight in the Japanese Promos 1998-99 · PSA 9?
Ancient Mew I (PSA 9) at 29.3%, Grand Party Trainer (PSA 9) at 14.8% and Ancient Mew II (PSA 9) at 12.9% of the index.
How is the Japanese Promos 1998-99 · 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.