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 NPS Pharmaceuticals (Nasdaq: NPSP) fell 10% today in a mysterious move south.

So what: The only news from the company today was the launch of an interactive website to provide information about short bowel syndrome. That doesn't seem like enough to move this stock, so it looks like traders have gotten a hold of this stock today.

Now what: Volume isn't terribly high, at just over the three-month average of 820,000 shares with two hours left in the trading day. I would chalk this move up to some crazy trading, and I don't see a reason to change your investment thesis today. Pharmaceutical stocks can go through some wild moves for seemingly no reason, and this looks like what's happening today.

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