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 Suntech Power (NYSE: STP) were down by double digits again today, setting a new 52-week low of $3 a share earlier in the trading session.

So what: The drop appears to be a continuation of yesterday's selloff in Chinese solar stocks, which in turn was prompted by news that peer JinkoSolar (NYSE: JKS) faces a regulatory rebuke for polluting a nearby river and killing fish in the process.

Now what: Mix in a bad quarter for Suntech specifically and the industry generally, and you have a recipe for poor returns. Yet the underlying numbers still appear to be better than anyone thinks. Do you agree? Would you buy at current levels? Please weigh in using the comments box below.

Interested in more info on Suntech Power? Add it to your watchlist.

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.

Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.