How Assetra prices graded cards

What Assetra tracks

Assetra follows graded trading cards: slabs certified by PSA, BGS (Beckett) and CGC, across Pokémon, One Piece, Magic: The Gathering, Yu-Gi-Oh! and other franchises. Every completed sale we record is matched to one card in our catalog (the same card, printing, language and variety) and to the grader and grade printed on its label.

A card page therefore shows sales of that exact card in every grade, not sales of “a Charizard” in general. Set pages list every card in a set, and franchise pages list every set, so each figure sits in the context of its neighbours.

What counts as a sale

A sale is a completed transaction on a marketplace or at an auction house: an auction that closed with a winning bid or a fixed-price listing that sold. Asking prices, active listings and best-offer listings that never closed are never counted as sales.

We leave out of every price figure:

• Unsold lots: auctions that ended without meeting their reserve, and listings that ended without a buyer.
• Sales pending settlement that have gone stale. A sale that has not settled for an unusually long time is treated as not having happened until it does.
• Sellers flagged as spam, whose listings are repeatedly withdrawn, relisted or not honoured.
• Statistically suspicious prices: a sale far outside the range of the same grade’s recent sales, which usually means a mislabelled lot, a bundle, or shill bidding. These sales stay visible in the ledger, marked, but do not move any figure.

Sales that closed in another currency are converted to US dollars, and every figure on the site is quoted in US dollars.

The headline price and the reference grade

Each card has a reference grade: the grade that trades most and best represents the card, usually PSA 10. The headline figure on a card page, and the price quoted in the page title and in the set checklist, is the most recent completed sale of the reference grade, with its date.

We do not headline the most recent sale in any grade, because for a card that trades across many grades that sale is often a low-grade or off-grader copy, and quoting it as “the price” of the card would mislead. The full sales ledger on every page lists every grade.

Estimated value

The estimated value is a recency-weighted figure for one grade of one card, computed from that grade’s own completed sales: recent sales count for more than older ones, and the number of sales used depends on how often the grade trades. A grade with many recent sales produces a tight estimate; a grade with one sale in the last year produces a low-confidence estimate, or none.

The estimate is shown with a typical range, the band in which comparable recent sales landed. A sale well outside that band is unusual for the card, not a new price level, until others follow it. Estimates are recomputed as sales close.

Record sale and all-time range

The record is the highest completed sale of the card in any grade, after the exclusions above. The all-time range (low, median, high) is computed over every recorded sale in every grade, so it describes the card as a whole rather than one grade. On a page where the ledger shows only the most recent sales of a heavily traded card, the range is labelled as covering those sales.

Population reports

Population figures come from the graders’ own population reports: how many copies of the card PSA, BGS and CGC have each graded, by grade. We refresh them periodically, so a very recent submission may not yet appear.

The top tiers are easy to misread, so we keep them separate:

• PSA 10 (Gem Mint) is PSA’s highest grade.
• BGS 10 Pristine is Beckett’s regular grade 10. The Black Label 10, awarded only when all four subgrades are 10, is a separate, rarer tier, and is shown as its own bucket rather than merged into the 10s.
• CGC 10 (Gem Mint) is CGC’s grade 10; CGC Pristine 10 is its perfect tier above it, again shown separately.

The gem rate is the share of a grader’s graded copies that earned a 10, a measure of how hard the card is to find in top condition.

Market cap

A card’s market cap is the estimated value of every graded copy in existence: for each grader and grade, the population multiplied by that tier’s average recent sale price, summed across all tiers. It is shown in total, split by grader, and by tier.

It is an estimate of what the graded supply would be worth at current prices, not what it would fetch if sold at once, and tiers with a population but no recent sales contribute nothing until a sale sets a price.

Freshness

Sales are collected continuously from the marketplaces and auction houses we follow and are matched to cards shortly after closing. Card pages are refreshed at least hourly and each page states the date of the newest sale it reflects. Population reports and exchange rates are refreshed on their own schedules.

Limitations

• We only see venues we follow. Private sales, in-person shows and venues without public results are not in the data, so a card can trade more than we record.
• Matching a listing to a card and grade is automated, from the slab label, the listing and the catalog, with uncertain matches held for review. Errors are possible and are corrected when found.
• A figure built from one or two sales is only as good as those sales. The sales ledger is always a click away, so you can judge the evidence for yourself.
• Market data is provided for information only and is not investment, pricing or authentication advice.

Citing Assetra

Cite a figure with the card page’s title and URL and the date you accessed it, for example: “Assetra, 1999 Charizard 1st Edition #4 Base Set PSA 10 Price & Comps, https://assetra.co/comps/1999-charizard-pokemon-game-no-4-87255, accessed 8 November 2026.” Each page states the date of the newest sale it reflects, which is the figure’s own “as of” date.