Studies
Original open-data research
Real numbers about the trading-card market, computed from open, attributed data — never scraped, never invented. Free to read, and free to cite with a link.
Cross-game · The big picture
Is value concentration a law of trading cards?
We measured 18 recent sets across Magic, Pokémon and Yu-Gi-Oh. In every game the top 10 cards hold 49–79% of a set's value and 67–91% of cards trade under €1 — only the degree differs.
Read the study →Pokémon · Sealed
Is it worth opening a booster box?
We ran 7 recent sets through Foilio's EV engine. The median box holds ~€81 in singles (€69 after fees) — below box retail, so opening is usually a loss. You're paying for the chase.
Read the study →Pokémon · Set economics
Where a Pokémon set's value really hides
We summed the trend price of every card in 8 sets. The top 5 cards hold an average of 49% of a set's entire value, while 13–77% of every set trades under €1.
Read the study →Pokémon · Rarity economics
What each Pokémon rarity is really worth
Median trend price by rarity tier across 6 modern sets. A typical Special Illustration Rare is €24.25 — and SIRs out-value the gold "secret" Hyper Rares in all 6 of 6 sets.
Read the study →Magic · Reserved List
The MTG Reserved List, by the numbers
The 567 Magic cards that can never be reprinted are famous for being expensive — yet 58% trade under €5 and only 19 clear €500. Value hides in a handful of icons.
Read the study →Working on something that needs original card-market data? These studies are free to cite — a link back to foilio.net is all we ask.