Creating a Simple Index for Sports Cards

As we’ve covered previously, our indices cover the entire sports memorabilia collectibles market. This includes cards, rings, trophies, awards ...

The True Life Story of Cracking a Case to Find an Autographed Insert. ODDS?

In the late 80s and early 90s, at the height of the ‘junk wax era’ manufacturers like Topps, Donruss, ...

Michael Jordan Rookie Card Sells for $150,000. WHY? (we’ll tell you)

On Dec. 6th, 2020 (less than one week ago) Robert Edward Auctions sold a 1986 Fleer Michael Jordan Rookie ...

Analysis of Card Grade and Price – Over $1000 vs Under $1000 Cards.

To recap: The box plot below shows the relationship between a collectible’s grade and its selling price. As expected, ...

Analysis of Card Grade and Price. V2

Continuing with our little test of 1966 Topps Mickey Mantle, from the other post we started showing the relationship ...

Analysis of Card Grade and the Affect on Price. V1.

If you’re new to collecting, it is important to know a few things. 1. Companies like PSACard.com encapsulate and ...

Tracking the LeBron James Index

LeBron James is one of the greatest stars in NBA history. It’s no surprise that collectors and investors flock ...

Predicting Collectible Price Movements – Part II

Today we’re exploring another angle on the question: Is it possible to predict price movements in collectibles? Lets look ...

Interesting: Predicting Future Card Prices

Pertinent information about predictive pricing for PSA graded cards. The sports card and memorabilia market is on fire.The lockdown ...