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Values & selling

How to use realised sales data to price a graded comic

Published Sep 14, 2026 · Updated Sep 14, 2026 · 1 min read

Short answerPull the last several sales of the same issue at the same grade and label from auction archives and sales aggregators, discard obvious outliers, and price at or slightly above the recent median for a quick sale or at the top of the range if you can wait. Sales more than six to twelve months old may be stale for a key whose demand has changed. Always match label colour and note page quality; a restored or signature copy is not a comparable for a blue label.

Building a comparable set

A comparable sale (a "comp") matches your book on:

  • Issue and printing
  • Grade
  • Label type (Universal, Signature Series, Restored, Qualified)
  • Grading company, ideally — CGC and CBCS prices can differ a little
  • Recency

Three to six comps is enough for most books. If you cannot find sales at your exact grade, bracket it: the price sits between the grade below and the grade above, usually closer to the lower one.

Reading the numbers

  • Median beats mean. One record sale skews an average.
  • Direction matters. Sort by date; a book that sold for less each time over a year is falling, however high the peak was.
  • Auction vs fixed price. Auction results include a buyer's premium in some archives and not others. Check which.
  • Venue. A sale at a major auction house with a catalogue reaches more bidders than a marketplace listing; prices there can run higher for keys.

Adjusting

  • Whiter pages than the comps: nudge up. Cream or worse: nudge down.
  • Top-of-census position: premium.
  • Poor centering or a distracting defect visible in the scan: discount, even within the grade.

Where sales data comes from

Auction houses publish their archives. Sales aggregators compile graded sales across venues by certification grade. Marketplaces show recent sold listings. None is complete on its own; use two.

Setting the price

For a quick sale, price at the recent median. To maximise, price at the top of the recent range and be willing to wait. For a book that has not sold at your grade in a year, an auction may be the only way to find out what it is worth today.

See also How much is my comic worth? and What is the CGC census?.

Written by the Rare Comics Collectors grading team. Spotted an error or have a question this guide does not answer? Tell us.

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