Mew - 040 (Trainer's Challenge Set) from Nintendo Promos rose $39.92 to $200.22 on Oct 9, 2026, the biggest one-day dollar move among Pokemon singles, per TickerMint.
Source: TickerMint (tickermint.cards), Oct 9, 2026. https://tickermint.cards/wire/2026-10-09-pokemon-dollar-move