Glossary

Two vocabularies. The hobby's, defined the way our analysis actually uses it — including where a term names an assumption or a trap rather than a fact. And our own, because a label you only meet here is one we owe you a definition for.

The hobby's vocabulary

Words this market uses, defined the way our analysis actually uses them — including where a term names an assumption or a trap rather than a fact.

1st Bowman: A player's first card in a Topps Bowman product, marked with a 1st logo on the front. It is the reference card where pre-debut cards are the whole market, and it is mostly vocabulary here: the Bowman-brand cards in this catalog are one corner of the market rather than its centre. A seller writing “1st Bowman” in a title does not make a card one — only the product checklist decides.
Bowman Chrome: The chromium-stock version of Bowman, and a different product from Bowman paper. It matters here for two cards in particular: a rookie-year pack-issued autograph, and a retail-exclusive chrome prospect insert from the year before the MLB debut. A second rookie-year autograph carries “Chrome” inside its INSERT name while sitting in the paper product — different card, different number.
Redemption: A voucher packed in place of an autographed card that was not signed in time. You enter its code with Topps and wait — sometimes years. It can expire, and Topps may substitute a different card or player, so a redemption trades below the signed card it promises. The two are separate assets and their sale prices should never share a comp pool.
Refractor: A Chrome parallel whose surface refracts light into a rainbow sheen. The base of the parallel ladder; colored and numbered refractors stack above it.
Parallel: A version of the same card printed on a different color or pattern, usually serial-numbered. A compound name is its own parallel: Orange Wave is not Orange, and True Blue is not Blue Wave, even at the same print run.
Serial numbered: Stamped with its copy number out of a stated print run, like 045/150. The stamped denominator is the print run; a card without a stamp is not “rare” in any verifiable sense.
Superfractor: The 1/1 top of the Chrome parallel ladder. With one copy in existence there are no comps — a Superfractor's price is a negotiation, not a market.
Gold Foil: An UNNUMBERED foil parallel in modern Topps flagship, and a different card from the numbered Gold in the same set. Sellers call both “gold”. Collapsing them into one comp pool prices the scarce one off the common one's sales, which is the single most common parallel error in this market.
Photo variation (SP / SSP): A short-printed alternative photograph sharing a card number with the base card — a different card at a different price, on the same checklist line. Several rookie-year cards here have two or three. A listing that says nothing about a variation has told you nothing: unstated is unknown, never “base”.
Wave / Prism / Negative / Mojo: Pattern families applied to chrome parallels, alone or combined with a colour. Each combination is a distinct parallel with its own market; collapsing them to the nearest single word cross-prices different cards, so Orange Wave is never priced from Orange.
Sapphire: Topps' online-exclusive Sapphire Edition, printed on sapphire-textured chrome stock with its own parallel structure. A separate market from the standard Chrome versions of the same card.
Topps Now: A card made to order for one moment, on sale for a short window, with the print run published afterwards because it is simply a count of the orders. The run is therefore a headcount of public attention on a day, not a manufacturing decision — reliable as a number, and a record of demand rather than a promise of scarcity.
Rookie-year autograph: A certified, pack-issued autograph from the rookie season. Four different Topps products carried one here, each with its own card number and its own market, and all of them are signed on dedicated autograph stock — there is no unsigned version of the card to forge onto.
Certified autograph: An autograph signed under contract with the manufacturer and inserted in the pack. Its authenticity comes from the product itself — which is why a JSA or BAS sticker on a listing calling itself a rookie auto is a warning sign, not a reassurance.
Aftermarket / in-person auto: A signature added after the card left the pack — at a game, a show, or by mail. A real signature, but a different and much cheaper asset than the certified autograph it is often listed to resemble.
Raw: Ungraded. A raw card's comps are raw sales; grading it changes both the asset and the relevant comp pool.
PSA: The dominant third-party grading company for this market, grading cards 1–10. A PSA 10 (“Gem Mint”) usually carries a large premium over a 9 — and a different grader's 10 is a different market, not the same grade.
SGC and BGS: The two graders that matter after PSA — SGC's black-matted slab and Beckett's (BGS) sub-graded scale, which allows half grades like 9.5. Their numbers are NOT interchangeable with PSA's: a stated SGC 10 is a different market from a stated PSA 10, so we never treat a sale in one as evidence about the other, and we publish no conversion between them.
Gem rate: The share of submitted copies that come back at the top grade — a PSA 10 or equivalent. It is the number the whole grading decision turns on, and the one nobody can know in advance for a specific card, which is why our calculator asks what gem rate you would NEED to break even rather than predicting one.
Tracked disappearance: This project's term for a listing that vanished before its scheduled end — very likely sold, but never witnessed selling and at no known price. It is recorded because it is real information, and it carries zero weight in any confirmed fair value: an unwitnessed sale is not a comp, however probable it looks.
Population (pop): The count of copies a grading company has graded at each grade, published in its population report. Low pop can support price, but pop only counts what was submitted — raw copies are invisible to it, and on a card printed last season a low count usually means nobody has submitted yet rather than that the card is scarce.
Comp: A comparable sale used to estimate value. A real comp matches year, product, card number, photo variation, parallel and grade, and is a completed sale — an asking price is never a comp.
FMV (fair market value): An estimate of what a card would sell for now, built from confirmed sales — here, a recency-weighted median over a disclosed window. Modeled value is not a confirmed sale price, and thin evidence should be labeled, not hidden.
Delivered price: Item price plus shipping — the number a buyer actually pays. On small cards shipping is routinely 20–40% of the trade, so comparing anything other than delivered prices reverses conclusions.
Best Offer: eBay's negotiation feature. Many sales close below the ask via accepted offers, and many price views still show the original ask — so ask-anchored price data overstates real market value. Sellers also commonly auto-decline offers far below ask (under roughly 80%), so extreme lowballs are usually machine-rejected.
Print run: How many copies of a card were printed. Stated only for serial-numbered cards; for everything else it is unpublished, and any claimed number is a guess.
Pre-rookie vs rookie card: Cards printed before a player's MLB debut are prospect or pre-rookie issues, whatever else is true of them; the official RC logo appears only on cards printed after the debut. Both pre-rookie US issues here are earlier than the rookie cards and are not rookie cards, and the Japanese issues are earlier again.

Words this site made up

Labels you will only meet here. Every one is a number or a rule from the engine rather than a mood, so each definition says what actually has to be true for the label to appear.

Index Score: The 0–100 headline: 35% player, 30% card, 15% value, 10% catalyst, 10% market quality. Unknown catalyst or market data spreads its weight over what is known; an unknown PRICE does not, and caps the score at 55 instead — a great player at an unmeasurable price is homework, not an opportunity.
Buy, Make Offer, Watch, Pass: What to do about one listing today, which is a different question from how good the card is. BUY needs every gate the Deal Score's own buy gate needs — live-verified, player ≥ 75, card ≥ 80, a 20% discount (15% when player and card are both ≥ 90) against confirmed comps at medium confidence or better. WATCH means one of those is missing and names which; PASS means nothing here is actionable at this ask. A card can be excellent and still be a WATCH, because the price is half the question.
Fair Entry: A buy with no discount in it. Paying what the market demonstrably pays is only defensible when the asset is one you would want at that price, so the bars are HIGHER than an ordinary buy, not lower: player ≥ 85, card ≥ 85, a core vehicle, confirmed comps at medium confidence or better, liquidity ≥ 5, and an ask no higher than the top of the observed range. Above $400 it needs high-confidence comps. No discount is not the same as don't buy, but it removes the cushion a discount provides.
Speculative Buy: A cheap asymmetric bet, $8–$25 all in, on a real card whose player is the risk. It needs no valuation, because at this price the downside is the whole outlay and being wrong is affordable — but it is refused when we DO hold confirmed comps at medium confidence or better and the ask is above them, since cheap is not a reason to pay over a known market. The risk is stated on the card rather than implied: most prospects at this price never become worth more.
Make Offer: The ask is not a buy, but the seller takes offers and the number we would send is. It means one exact thing: at the settle price — 80% of fair value, which is the discount bar — this listing would clear a buy gate. The ladder is anchored to what these have sold for and never to the asking price, so it is the same number on a $52 ask and a $520 one, and we decline to name one at all when even the reservation price is under 60% of the ask, because that is a price cut you are waiting for rather than an offer you are sending.
Conviction Buy: The top tier, and the hardest to earn. It needs a live-verified listing, player ≥ 80, card ≥ 85 and value ≥ 75, plus confirmed comps at medium confidence or better — then a score of 90+, or 84+ when the evidence is high-confidence confirmed sales. Every one of those is a gate, not a weighting.
Strong Value, Good Value, Watch, Speculative: The score bands below conviction: 84+, 77+, 70+ and 60+. Anything under 60 is a pass and is not shown as an opportunity. The bands describe the score, not the evidence — which is why a tier always appears beside a confidence label rather than instead of one.
Lottery: A cheap asymmetric bet rather than a valuation: a real card at or under the lottery ceiling, on a player who is not ruled out. It needs no fair value by construction, which is the only reason a status like this can appear on a card we cannot price — and why it is never called a buy.
Moonshot, Core, Premium: The three lanes the board is shown in, because nobody has one budget: moonshots $8–$75, core value $50–$500, premium conviction $250+ with the strictest evidence bar. The bands overlap on purpose — inside an overlap the strategy decides, not the dollar, so a $60 lottery ticket is a moonshot and a $60 strong-value card is core.
Needs pricing: Interesting, and unpriceable. Shown apart from the ranked lanes and never ranked against them, because a card we cannot value has no place in an ordering built on value.
Ladder posture: The badge beside each rung of a player's parallel ladder, answering which version is the right card: SWEET SPOT is the best scarcity-per-dollar step that also trades, CHEAPEST WAY IN the liquid entry point, FAIR when the premium tracks the scarcity it buys, EXPENSIVE when it outruns it, ILLIQUID when a rung is priced but barely trades, and THIN EVIDENCE when nothing confirmed has sold there so no judgement is possible. Three separate bars must be cleared to earn SWEET SPOT — scarcer than the rung below, scarcity gain outrunning the price premium, and actually trading — which is why a 1/1 essentially never qualifies: “only one exists” is a fact about supply, not a reason to buy. Every judgement comes from this ladder's own measured prices; there is no universal multiplier that says a /250 is worth some fixed multiple of base.
Card archetype: The specific shape of Ohtani card a listing claims to be, named on every deal card: 2018 canonical rookie and rookie-era factory auto sit at the top, then Japanese issues (BBM/Calbee), 2017–18 Bowman prospect issues, 2018 rookie parallels, Topps Now milestones and post-rookie factory autos, then modern flagship/Chrome, relics, and unplaced cards — with an aftermarket signature rated 0 however it prices. Numbering is a tiebreaker WITHIN a shape and never a way into a better one: a /25 of the wrong vehicle is still the wrong vehicle. The default ordering is an unreviewed placeholder — the owner-curated importance table outranks it card by card. Distinct from vehicle class, which is the bucket cap this feeds.
Vehicle class: What kind of card this is, in four buckets plus a sentinel — core (canonical rookies and rookie-era factory autos), collector (Japanese, milestone and prospect issues), depth (parallels of core, post-rookie autos, modern flagship), speculative (relics and unplaced cards), and reject — each capping how high the card score can go: 10, 9, 8, 6 and 3. Speculative is not a verdict: an unrated card is unrated, and the cap keeps it below the top band without condemning it. The cap is arithmetic rather than advice, which is how a reject (an aftermarket signature, a reprint, a lot) is prevented from ever earning a buy at any price.
Catalyst: A step change in a player, not a good week: a debut, a promotion up the ladder, a close-to-majors score crossing 75, a fifteen-point move in form either way, or an injury flag being raised. Each names the two values it moved between so the claim can be checked, and a missing value on either side produces no catalyst at all rather than a guessed one.
Exit signal: A prompt to look at something you already own, ranked now, soon or watch, and always carrying the fact that triggered it — the months at a level, the share of your portfolio, the age against the prospect window. A signal with no evidence behind it is never emitted at all.
Buy zone: The delivered price at which a card stops being a fair purchase and starts being an edge, shown as bands rather than a single number: strong buy, buy, fair, don't chase. Every boundary is derived from that card's own evidence range — never an invented spread — so thin evidence honestly produces a wide fair band. A buy zone built on a modeled value is labelled as estimated, and it never on its own promotes a card to a buy.
Expectation gap: The difference between where a player's baseball trajectory is heading and what his cards have already done about it. A positive gap (early market opportunity) means the performance is improving faster than the cards have repriced; a negative one means the cards ran ahead of the baseball, which is how a good player becomes a bad entry. It is only stated when both halves are measurable — an unmeasured side gives an unknown gap, never a zero.
Parallel sweet spot: The rung of a card's parallel ladder where the scarcity gained outruns the premium paid for it, judged from that ladder's own measured sale prices rather than any universal multiplier. A rung has to clear three bars to earn the label: it must genuinely be scarcer than the rung below, the scarcity gain must outrun the price step, and the rung must actually trade. A 1/1 nearly always fails the third, and that is the correct answer rather than a missing one.
Confirmed vs modeled: Whether a number on this site rests on sales that were witnessed completing, or on an estimate built from related evidence. Confirmed values name how many sales are behind them; modeled values say so in the same breath they give the figure, and never wear the wording reserved for a real sale price. Where neither is available the page says the evidence is insufficient instead of printing a number that looks like the others.

Deeper treatments of the big ones live in the guides; the formulas behind our numbers are documented on the methodology page.