Japanese Promos 1998-99 (J89) carries a total slabbed market cap of $41.7M as of Nov 13, 2026. TCGBerg tracks a fair value for 58 card and grade combinations in the set. Ancient Mew I #P-ANCIENTMEWI-NINTEDOERROR · PSA 10 anchors the set at 10.0% of its total cap.
Historical context
A JA release; its release date is not recorded on the terminal.
Market overview
Cap is concentrated: the largest card-grade position is 10.0% and the top 5 make up 40.1% of set cap. The set's cap-weighted fair-value confidence is moderate (43/100). It has seen 33 graded sales over the trailing 30 days.
Frequently asked
What are the chase cards in Japanese Promos 1998-99?
Ranked by PSA 10 fair value, the most valuable Japanese Promos 1998-99 cards on TCGBerg are Snap Pikachu #25 ($20,711.23), Psyduck #54 ($15,716.97), Grand Party Trainer #P-GRANDPARTYTRAINER ($8,970.95), Ancient Mew I #P-ANCIENTMEWI ($5,831.68) and Ancient Mew I #P-ANCIENTMEWI-NINTEDOERROR ($5,203.18).Values are model estimates from recorded sales and change as the market moves; open a card for its sales evidence and graded values.
What is included in the Japanese Promos 1998-99 card list?
This list covers 16 catalog printings. Editions and finishes can have separate entries for the same card number. Prices appear where valuation or sales evidence is available; an unpriced entry does not mean the card is worth zero.
How do I compare Japanese Promos 1998-99 card prices?
Match the card number, printing and condition before comparing values. Use raw condition prices for ungraded copies, and the same grading company and grade for slabs. Open a card to check the available price history, recorded sales and sales evidence.