the next gen, near real-time

Comic Book Price Guide


Marketplace Sales Records


Worth of Comic Sales Tracked


Images of Actual Comics Sold

Market Activity Last 30 Days

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How it Works

We monitor the fire hose of online comic book sales across various marketplaces and report on the sales of CGC and CBCS graded books in our comics price guide. We only monitor actual sales; not just sale listings. For each sale discovered, we match it to the specific comic in our massive database (which also includes variant covers and printings). As we match the sale we record the comic grading company, holder/label type and the assigned grade. Finally, we gather supportive information about the individual sale including when and where it was sold, how the sale can be identified at the remote venue, the format of the sale (auction, fixed price, etc.), the images that were used for the sale, descriptive sale information (i.e. auction titles) and more.

We employ actual humans...

Although we use API technologies to pull in giant piles of sales data, we employ humans to organize that data and assign it to individual comics in our database. Therefore, mistakes can occasionally occur. For such instances, we've integrated a flagging system. Any member can flag a sale that they feel may have been assigned in error. We'll take a second look at the sales assignment and make corrections as needed.

Math & Logic

We follow a strict set of guidelines in order to deliver the best possible comic book values.

Qualifications & Reported Prices

We make every possible effort to only report on the price paid for individual comics. Some examples:

  • When more than one comic is offered in a particular listing, the entire sale is disregarded.
  • If a comic is purchased for an amount less than it's fixed price (i.e. a "best offer" is accepted) we report the price offered/paid. Our direct data licensing relationships provide this level of insight.
  • If the holder/label is damaged the sale is disregarded.
  • We do not consider shipping costs in our calculations.
  • When a "buyer fee" is involved, it gets added to the sale price.

Value & Trending Calculations

We're often asked how we calculate these values for individual grades. We use a proprietary algorithm that considers the following data points (among others):

  • The time frame the user is analyzing (i.e. the past 3 - 24 months).
  • The number of sales that have been recorded in that time frame.
  • Whether or not the user is allowing "outlier" data to be included in the calculations.
  • Peaks and valleys in sales history (i.e. were there certain time frames where the comic was sold more or less often than other time frames).

Membership Perks

Look-up comic info, variants & printings

Our database of comics is organized by series title, issue number, variants & printings.

High-level sales data

Find total sales by grade, highest grade's average value, trend data by grade and much more.

Save comics you like, want & own

Simple, one-click functionality to save individual comics to one of your lists. Includes advanced capabilities for serious collectors.

Generate Comic Value Badges

Make value badges to share the current market value of any comic in our database on forums, within your auctions or even on your web site.

Unlock sales data

Access to complete sales data including values by grade and holder type, trends, averages, individual sales details (with pictures) and much more.

  5 comics/mo. Unlimited
Enhanced mobile platform

Automatic mobile device detection allows you to use your account in a mobile-friendly environment.

Access to Marketplace Sales Search

Research tool that provides access to sales histories of non-graded comic books.


Test Drive?

The comics below have been automatically unlocked, meaning all of their sales data is available to view without registering. Registered, free members are allowed to unlock up to 5 additional comics each month. Comics are automatically unlocked for paid subscribers to our comic book price guide.

The Incredible Hulk #181 Cover 936 Graded Sales
The Amazing Spider-Man #1 Cover 248 Graded Sales
Star Wars #1 Cover 761 Graded Sales
The Amazing Spider-Man #129 Cover 870 Graded Sales
The Amazing Spider-Man #700 Cover 366 Graded Sales
The Walking Dead #1 Cover 419 Graded Sales

Copyright © 2010-2015 All Rights Reserved.

All Item images are used solely for identification purposes.
All rights to item images reserved by their respective copyright holders.

Get the most out of your chirps with these few tips:

  1. Use @username to mention a specific user.
  2. Use @GCIN (replace GCIN with the proper number) to mention an individual item.
  3. Use #subdomain to mention a specific collection. To find the subdomain of a collection, simply look up in your browser's address bar. The subdomain is the letters that follow the 'http://', but come before the ''. For example, the subdomain for would just be comics (used as #comics).
  4. Use a hashtag (#) directly in front of a word to make it a search link.

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