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What: Shares of utility and industrial equipment manufacturer ESCO Technologies
So what: The first quarter was a big bounce for ESCO. After growth slowed to a halt in fiscal years 2009 and 2010, it reappeared with a vengeance this quarter as revenue jumped 42% from the first quarter of 2010 and earnings per share increased from $0.02 to $0.40. Both revenue and earnings for the quarter trounced the expectations of Wall Street analysts.
Now what: The company maintained its outlook for 2011, noting that sales to PG&E
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Fool contributor Matt Koppenheffer does not own shares of any of the companies mentioned. You can check out what Matt is keeping an eye on by visiting his CAPS portfolio, or you can follow Matt on Twitter @KoppTheFool or on his RSS feed. The Fool's disclosure policy prefers dividends over a sharp stick in the eye.