Lucario GX - SM100 (SM Promos) fell 15.6% to $17.42 on Oct 19, 2026, the biggest one-day drop among Pokemon singles priced $20 or more, per TickerMint.
Source: TickerMint (tickermint.cards), Oct 19, 2026. https://tickermint.cards/wire/2026-10-19-pokemon-top-decliner