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: For the second time in less than two weeks, Mattson Technology
So what: Last time around, Mattson's stock plunged on no discernible news. This time, the culprit was a disappointing earnings report with strong sales but a wider net loss than expected.
Now what: Like industry peer FSI International
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Fool contributor Anders Bylund holds no position in any of the companies discussed here. True to its name, The Motley Fool is made up of a motley assortment of writers and analysts, each with a unique perspective; sometimes we agree, sometimes we disagree, but we all believe in the power of learning from each other through our Foolish community. The Motley Fool is investors writing for investors.