How our prices work for the market you collect in.
Every value on this site — and every value in Cardfolio — is a guide price for the market it belongs to: pounds for the UK, dollars for the US. They are estimates for tracking a collection, not appraisals, offers or guaranteed resale prices.
Built from real market data.
Every value is built from real UK market data and real US market data — singles and sealed alike — together with our own modelling, and shown in your market's currency. Every card is re-priced at least twice a week, and many more often, so a value can move on any day. Every price in Cardfolio shows the date it was last updated.
Every update is checked before it reaches you. A value that suddenly jumps or collapses is held back until the next update confirms it, so one odd day in the market never becomes your number.
How we build a value is our own, and we keep refining it. The result is on every card.
Every price tells you how far to trust it.
Each value carries a High, Medium or Low confidence rating, shown as a coloured dot in the app, so a card with thin market data says so instead of quietly guessing.
Well supported by market data.
Lean on it for everyday tracking.
A good estimate.
A solid guide, dependable for tracking, with more room for error than a High.
A rough guide.
Limited market data. A ballpark — the start of a conversation, not the last word.
A card's rating can change from week to week as its market changes. Each market has its own rating: on a card's own page it follows the market you are viewing.
What these numbers are not.
A guide price you can rely on is one that is honest about its edges. Here are ours.
Not offers.
A guide price is not an appraisal, an insurance valuation, an offer or a guaranteed resale price. Condition, timing and fees all move the real number.
Rare cards wobble.
Cards with little market data, usually ones that rarely change hands, carry a Low rating. Useful as a ballpark, but treat them with more caution than a card that changes hands every week.
No price beats a made-up one.
When a card has too little recent market activity to value honestly, it shows no price and adds nothing to your total. It isn't worthless; we just won't invent a number. It fills in on its own once there is enough to go on.
Cheap cards are valued as bulk.
A card worth very little is valued the way it really changes hands, by the lot, rather than as though each one sold on its own. That can make a big pile of commons worth less than you hoped. It is the accurate number.
Twice a week, never real-time.
Every card is re-priced at least twice a week, and many more often, but this is not a live ticker. Check the date on a price before you act on it.
The method evolves, openly.
We refine how values are built over time, and values can move when we do, with no change in the market itself. When that happens we say so, rather than letting it pass for a market move.
Check before you act.
Before you buy or sell an expensive card, check recent comparable sales in your own market. Our value tells you where the market has been; this week's sales tell you where it is.
Collecting first.
Nothing here is financial advice. We built this to document collections honestly, not to predict markets or sell a dream. TCG Mart London and Cardfolio are independent and not affiliated with The Pokémon Company.
We use it on our own collection. Publicly.
The TCG Mart London collection is valued the same way and published openly, price history and all. If a value is wrong somewhere, it's wrong in public, on our own cards first. Then it gets fixed.