Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of insurance software vendor Ebix (Nasdaq: EBIX) were minding their own business on a humdrum day, until all hell broke loose and the stock fell more than 26% on truly massive trading volume in the early afternoon.

So what: This stock suffered an entirely inexplicable fall a couple of weeks ago, but this time there's a real driver behind the action. A scathing three-part article that eviscerates Ebix for being overpriced and possibly fraudulent hit the news feed just as the panic-selling started, showing that investors were taking that message to heart.

Now what: I'd think twice before acting on that damning report. For one, the articles point to CEO Robin Raina as a liability while our own Motley Fool Pro analyst team sees him as an asset, and the Rule Breakers team calls him a successful game-changer. But give the report a read and make the call yourself. Keep in mind it was written by an anonymous writer who disclosed a short position on Ebix and has every intention to profit from whatever market moves the article might trigger.

Interested in more info on Ebix? Add it to your watchlist.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.