Zacks.com featured expert Kevin Matras highlights: Core Laboratories NV, Invesco Ltd., Medtronic, Inc., Willbros Group Inc. and

   Zacks.com featured expert Kevin Matras highlights: Core Laboratories NV,
 Invesco Ltd., Medtronic, Inc., Willbros Group Inc. and WuXi PharmaTech Inc.

PR Newswire

CHICAGO, April 24, 2013

CHICAGO, April 24, 2013 /PRNewswire/ --Stocks in this week's article include:
Core Laboratories NV (NYSE: CLB), Invesco Ltd. (NYSE: IVZ), Medtronic, Inc.
(NYSE: MDT), Willbros Group Inc. (NYSE: WG) and WuXi PharmaTech Inc. (NYSE:
WX). Kevin Matras shows how to find companies with accelerated earnings
growth.

(Logo: http://photos.prnewswire.com/prnh/20101027/ZIRLOGO)

Screen of the Week written by Kevin Matras of Zacks Investment Research:

In good markets or bad, earnings are one of the most important things that
influence stock prices.

But instead of just looking at only the most recent quarter's earnings, try
looking for earnings acceleration too.

With earnings season in full swing, this is a good time to go over this.

Studies have shown that almost all of the most successful stocks in the past
had displayed accelerated earnings BEFORE their most impressive price moves.

Sideways 'percentage earnings growth' (even if they're good) or decelerating
'percentage earnings growth' (strong or not) can potentially signal a period
of consolidation (or slowdown), which in turn can flatten out prices or send
them lower.

But increasing 'percentage earnings growth' (consistently improving from the
company's prior percentage of earnings growth) can often be the difference
between good stocks and great stocks.

The Parameters:

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