PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $6.9 |
| PSA 8 | $12.65 |
| PSA 9 | $16.93 |
| PSA 10 | $219.99 |
| BGS 10 | $286 |
| CGC 10 | $132 |
| SGC 10 | $132 |
Market context: ungraded price +15.2% over 30 days. -37.7% over 90 days. PSA 10 premium: 31.9× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-ex-battle-boost/pokemon-japanese-ex-battle-boost-mewtwo-ex-45