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 Monster Worldwide (NYSE: MWW) slumped more than 10% in early trading before closing down around 7%.

So what: Trading volume ended above the stock's three-month average but not so much as to suggest an influx of deep-pocketed institutional sellers. Instead, it seems investors fear the unintended consequences of legislative efforts to put Americans back to work.

Now what: But that's also a guess based on today's headlines. It's just as likely that technical traders and computer modelers -- seeing Monster in a "bearish trend" -- are selling or shorting to take advantage of the downturn. I'd rather bet to the long side with a little options-induced leverage. Do you agree? Would you buy at current levels? Please weigh in using the comments box below.

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Fool contributor Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team. He didn't own shares in any of the companies mentioned in this article at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Google+ or Twitter, where he goes by @milehighfool. You can also get his insights delivered directly to your RSS reader.

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