Palm Beach Card Co — Slab Inventory

Est. value is Card Ladder’s CL Value for that exact grader and grade — a modelled estimate, not a sale price. Market value is the median of recent sales of the same card in the same grader and grade — up to twenty sales from the last 120 days, widened when a card trades rarely. Sales more than 2.5× or under 0.4× the median of that window are set aside as bad prints; they stay visible on the card, struck through, so the figure can always be reconciled. A median is used rather than an average so that one absurd sale cannot move the number, and below four sales the plain average is shown instead. Each card states how many sales it rests on and over what period — twenty sales in a fortnight is a far firmer number than two sales in two years. Spread is how far recent comps sit above or below the estimate — a wide spread usually signals a thin or moving market, so read it alongside the sale count. TAG slabs are not covered by Card Ladder, so they carry no estimate; their figure is the average of the last six TAG-graded sales recorded by PriceCharting, and it does count toward the portfolio total. PriceCharting matches listings by title rather than by cert, so a sale well outside the normal range is flagged — open the card and read the listing titles before trusting it. Card images load live from CGC, PSA and TAG, so they are never out of date; where a grader image is unavailable the card’s own Card Dealer Pro scan is shown. Valuations are a point-in-time snapshot from and do not refresh on their own.