Like any financial asset, commodity, or collectible, comic book values fluctuate in the course of natural course of trading. We can measure this fluctuation by calculating its variance or standard deviation. Variance is a measure of how far a string of variables lie from their mean, or...

It has been four months since DC Comics unleashed their much anticipated New 52 relaunch. Not surprisingly, DC dominated 2011’s bestseller list. The only non-New 52 title that managed to squeak onto 2011’s top ten list was Ultimate Spider-Man #160. Justice League #1, Batman #1, and Action...

This week I want to examine how the census numbers influence the market values between the 9.0 – 9.8 grades (i.e., the “mint” grades). Immediately we’re confronted with three problems.

Would you be shocked if I told you this collection has experienced a devastating loss in market value over the last two years? In late 2009 a collection of key Bronze Age titles (list below) would have been worth approximately $65,000. Using the latest auction data, this collection would be worth around $36,000 today. A stunning 45% drop.