Signals

Within an era, which PSA 10s trade cheap for how scarce they are?

ln(price) on ln(population), per era. Ranked by residual.

308 of 311 tracked cards listed · 9 eras, 9 with a fit

Which cards are 30%+ off their high while the supply of PSA 10s did not grow?

Observed daily history for the window high; population change between dated reads. Supply column fills in with the second read.

99 listed of 305 tracked cards with observed history · 2 population reads

How much of a set's value sits in its top three cards?

Top-3 share and HHI over every card's observed value. A fragility score for sealed product.

53 sets ranked, 6 partial

Same card, Tradera (Sweden) vs TCGplayer (US). Is there a gap?

Median of matching Swedish asks in USD at the ECB rate over the US near-mint market. Gross gap, before postage and tax, which the page says rather than assumes.

Which out-of-print sealed products still sit near MSRP?

Era ended = out of print. Unopened price over a cited MSRP; products without a citable MSRP listed unranked.

What is a box worth opened, at today's prices and published pull rates?

Per-card pull odds from TCGplayer's opening samples × observed card values, summed per pack. Three sets have published samples.

What does a PSA 8, 9 or 10 sell for, as a multiple of the raw near-mint price?

eBay sold-by-grade averages over the TCGplayer near-mint market, per grade. Gross multiples, before grading fees, which the page says rather than assumes.

3483 cards with a near-mint price and a PSA sold read · 2623 with a PSA 10 from 3+ sales