| September · 1 sale · median $2 · +2% vs Aug | ||||
| 13 | eBay | Grumpig 020/050 Ultradimensional Beasts LP Japanese Pokemon Card TCG Japanese 020/050 | +2% | $2 |
| August · 1 sale · median $2 · −60% vs Aug | ||||
| 5 | eBay | GRUMPIG 020/050 ULTRADIMENSIONAL BEASTS JAPANESE POKEMON TCG Japanese 020/050 | −60% | $2 |
| August 2025 · 1 sale · median $5 | ||||
| 18 | eBay | 020-050-SM4A-B - Pokemon Card - Japanese - Grumpig - C | — | $5 |