An American story,
told through collecting.

Theirs, and yours.

Twenty-five cards priced every morning at every grade, against sales five auction houses let us show. Free to read. And, for the card you would never sell, a print worth framing.

25 cards in the index 5 houses on the record 17 places to buy and sell, tracked every sale verified and linked
For a family

When you inherit a collection

A collection in a room: framed memorabilia, signed balls in cases, and a small framed card print on a sideboard

Most collections outlive the one person who understood them. Before anything is sold, appraised or moved, read what to do first — who to call, what the different prices mean, and the mistakes that cost the most.

What to do first →
Free to read. We don’t buy cards. And the part almost nobody explains: what happens to the tax bill.
For a gift

For the collector who has everything

A framed Collector’s Story print of the 1989 Upper Deck Ken Griffey Jr., with three lines handwritten beneath it

You cannot buy a card for someone who collects cards. So give them the one they already own — printed just over life size, ready to frame, with room beneath it for the part only they can write.

See a finished one →
From $119 · printed, ready to frame
For collectors

The cards everyone knows

1933 Goudey #144 Babe Ruth

Mantle, Jordan, Griffey. The attention in this hobby gathers around a smaller circle than anyone expects — so we drew it, and now we price those twenty-five cards every morning, at every grade, against sales the auction houses gave us permission to show.

See the twenty-five →
Free to read. Nothing to sign up for.
Gregory S. Ostrowski, who writes The Heirloom Index

Who writes this

The Heirloom Index is written by Gregory S. Ostrowski, who has collected cards since he was a kid. By profession he is a CERTIFIED FINANCIAL PLANNER® professional, which is part of why the site pays attention to what happens when a collection changes hands. The Heirloom Index is a separate venture: it does not offer financial planning, investment, tax or legal advice, and it is not affiliated with his advisory firm.

More about how this is made →

Judge the work first

The research is free to read, and the index has no paywall. It is the same research that goes into everything we make, done in public.

Price history of the 1952 Topps Mickey Mantle — every verified public-auction sale, by grade, on a log scale What a card page holds. The 1952 Topps Mantle: 225 verified public-auction sales, by grade, each dated, credited and linked to its lot. Every card in the index has a page like this. Open Mickey Mantle’s page →
Weekend Reading · October 2, 2026
Both Ends of the Ladder

The same card sold twice in one September weekend, for prices that don't seem like they belong to the same object. Two totally unrelated cards landed on the exact same price by accident. And a rookie card from 1989 just quietly broke a record nobody was watching for. Here's what I found interesting about all three.

Read this week’s edition →
Michael Jordan — 1986 Fleer #57 MJ1986
Featured Legend · Basketball

Michael Jordan

The card the modern hobby was built on. Jordan rising to the rim in his Fleer rookie — the most important basketball card of the last forty years, and the one every serious collection is still measured against.

Read the card’s story →

The Heirloom 25

Headline index 1,090.39 updates twice daily

A curated benchmark of the finest.

Three Indices

Keeping an eye on any of them? Put them on one board — at any house or marketplace — sorted by what closes first. Open the Radar →

The Market

Thirty-nine cards

The Heirloom 25, and fourteen more worth building a collection around. 1,671 graded copies for sale this morning, every grade Walk the Market →
The
Market
The Grails

The Vault

Some cards transcend the market entirely — the ones that are not for sale.

Step inside →
The Quiz

What kind of collector are you?

Six questions. Twelve collector alter-egos — from The Icon to The Future. Find the legend whose collecting spirit is unmistakably yours.

Find your collector →