Gyarados (Base Set 2) rose 19.3% to $54.78 on Oct 7, 2026, the biggest one-day gain among Pokemon singles priced $20 or more, per TickerMint.
Source: TickerMint (tickermint.cards), Oct 7, 2026. https://tickermint.cards/wire/2026-10-07-pokemon-top-gainer