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: Freshly minted shares of business-minded social network LinkedIn (NYSE: LNKD) exploded right way, soaring as high as $92.99 after opening at $45 per share for a peak pop of 106.6%.

So what: As of this writing, just before lunch, 11.6 million shares had changed hands at an average price of about $86. That's just about $1 billion of paper-pushing in half a day's worth of action. To put that number into perspective, large-cap market darlings Baidu (Nasdaq: BIDU) and (Nasdaq: AMZN) typically attract about $1 billion of market action a day -- with market caps of $46 billion and $90 billion, respectively.

Now what: Okay, so everyone wants a piece of the new kid on the block. But LinkedIn's prospectus is full of bright-eyed membership-boosting plans with very little economic value. Google (Nasdaq: GOOG) shares climbed steadily for years after its storied IPO but Vonage Holdings (NYSE: VG) crashed and burned immediately. There's no way to know which way LinkedIn is going next, which makes me want to wait until we can buy volatility-happy options on the stock instead of the uncertain shares themselves.

Interested in more info on LinkedIn? 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.