How it’s built
- Read from a 2025 press report on Mercari's results for the year to June 2025.
What we assumed
Nothing. The figure is used as published.
Sanity check
Mercari gives no trading-card sales figure, so this is a ranking, not a size.
The value
- Pokémon cards most actively traded in toys and hobby; no GMV
Where it comes from
The line in the source
おもちゃ・ホビーでは変わらずポケモンカードの取引が最も活発だが In English
Qualitative; no trading-card GMV (consistent with F:Q07.RT-24).