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.

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

Fool contributor Travis Hoium does not have a position in any company mentioned. You can follow Travis on Twitter at @FlushDrawFool, check out his personal stock holdings or follow his CAPS picks at TMFFlushDraw.

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