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 voice over Internet protocol technologist Interactive Intelligence (Nasdaq: ININ) got a bad signal today, falling a precipitous 14.8% as of this writing on heavy volume, and might go lower still when the day is done.

So what: Interactive Intelligence's first-quarter sales easily topped Street estimates, adjusted earnings beat analyst consensus by a penny, and management guidance came in above the current zeitgeist. Then again, the stock had raced ahead by 32% over the previous three months, leaving it ripe for an adjustment.

Now what: One analyst firm downgraded the stock from buy to hold, while another raised its one-year price targets to $46 per share -- whom do you believe? For the record, Interactive Intelligence is growing sales and earnings faster than peers ShoreTel (Nasdaq: SHOR) and Nuance Communications (Nasdaq: NUAN), while also sporting wider margins. Interactive may trade at a market premium, but sometimes you get exactly what you pay for -- which is what makes this stock a true Rule Breaker.

Interested in more info on Interactive Intelligence? 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.