Drop Sheet
Methodology

How Drop Sheet works

Drop Sheet does two things. It tracks Pokémon prices every day (the Pokémon Era Indexes, the Pokémon Sealed Era Indexes and Pokémon Movers) and graded sports card prices every week (the Sports Card Era Indexes), and it puts every drop that matters (Pokémon TCG, sports cards, Supreme and sneakers) on one weekly calendar with retail, resale and a straight call. This page explains exactly how each number and each call is made.

How a Cop / Maybe / Skip call is made

CopMaybeSkip
  1. Retail. We start from the retail price (MSRP) on the brand's or a retailer's page. If a manufacturer doesn't publish one on a page we can read, the card says "Not published".
  2. Resale. Next to it goes the current resale number, labeled by type (see below), with the date we read it. No real number means "No resale data yet".
  3. The evidence. An editor weighs the gap between resale and retail with the evidence behind it: pre-release asks, the presale market and comparable past drops. An ask barely over retail can still be a loss once selling fees come out, and a single thin ask isn't a market.
  4. The call. One of three, with a one-line reason on every card:
    • Cop Evidence says it holds above retail, or it's an unusually good price for what's inside.
    • Maybe Buy it if you'll use, wear, rip or play it. Don't count on flipping it.
    • Skip Overpriced for the market, plentiful, or already asking under retail.
  5. After the drop. Resale numbers refresh every morning, and price-quoting reasons are re-filled from the fresh numbers so they can't go stale. The call itself only changes when an editor changes it. Last week's results check recent drops against retail, and the Below retail board lists anything trading under MSRP, so the calls are graded in public.

Calls are editorial opinion based on the data we link. They aren't financial advice.

Resale numbers and where they come from

A resale number is a point-in-time reading of one stated type: a lowest ask is what a seller wants, a market price reflects recent sales, and a retailer listing is what shops charge. A lowest ask is not a sale price, so every number says which type it is.

How the Pokémon Era Indexes are built

Think of the Dow, for Pokémon cards: Drop Sheet Vintage 10, Drop Sheet Mid-Era 10 and Drop Sheet Modern 10 show where a whole era is heading, not just one card. See them on the homepage under Pokémon Era Indexes.

How the Pokémon Sealed Era Indexes are built

Drop Sheet Vintage Sealed, Mid-Era Sealed and Modern Sealed use the same eras and the same equal-weighted math (value = 1,000 × the average of price ÷ base-date price). Each one tracks a fixed basket of iconic, liquid sealed products, each an exact product with a real market price: Vintage 12 (WOTC booster packs), Mid-era 14 and Modern 15 (booster boxes, Elite Trainer Boxes, booster bundles and packs). Vintage is packs only, because no WOTC booster box has a reliable market price.

History is our own daily snapshot of market prices (USD), starting Oct 19, 2026. Nothing is backfilled, so the 7-day change and the sealed movers appear once we have a week of snapshots. See them under Pokémon Sealed Era Indexes.

How the Pokémon Set Indexes are built

The Era Indexes show where a whole era is heading. The Pokémon Set Indexes go one level down: every English Pokémon TCG expansion from Base Set to today gets its own page with three numbers, all from our own daily market prices in US dollars. See them all at Pokémon Set Indexes.

How the Sports Card Era Indexes are built

Drop Sheet Vintage 12, '80s & Junk Wax 12, Modern 12 and Ultra-Modern 12 track graded sports cards the way the Pokémon Era Indexes track raw Pokémon cards. See them on the homepage under Sports Card Era Indexes.

How Pokémon Movers are picked

House rules

More about the site, the FAQ and the fine print: About Drop Sheet.