Zacks Suggests Four ''Buy'' Stocks: Hertz Global Holdings, Copa Holdings, S.A., Keynote Systems and DXP Enterprises

CHICAGO--Aug. 19, 2011 -- Four free stock picks are being made available today on Zacks.com. The industry's leading independent research firm highlights one Zacks #1 Rank Strong Buy or a Zacks #2 Rank Buy stock for each of the four main styles of investing: Aggressive Growth, Growth & Income, Momentum, and Value.

The four highlighted picks are: Hertz Global Holdings , Copa Holdings, S.A. , Keynote Systems, Inc. and DXP Enterprises Inc. .

From 1988 through the present -- a period that included serious corrections and recessions -- the Zacks #1 Rank Stocks have nearly tripled the market with a fully documented average gain of +28% per year.

Here is a summary of today's selected stocks that are now highly rated by Zacks: 

Aggressive Growth -- Hertz Global Holdings

Hertz Global Holdings is still projecting excellent growth rates in the face of sliding sentiment. Shares have been hit, but that just makes for even better valuations.

Growth & Income -- Copa Holdings, S.A.

Copa Holdings, S. A. carried its momentum into the second quarter and delivered a 36% positive earnings surprise, as the airline continues to benefit from a burgeoning middle class in Latin America. Earnings estimates jumped higher off of the strong quarter, sending the stock to a Zacks #1 Rank (Strong Buy).

Momentum -- Keynote Systems, Inc.

Keynote Systems, Inc. has seen big gains over the last 12 months, recently hitting a new all-time high after reporting strong Q3 results that included a hefty 25% earnings surprise. With an average earnings surprise of 40% over the last four quarters and estimates on the rise, this Zacks #1 Rank stock is floating with momentum.

Value -- DXP Enterprises Inc.

DXP Enterprises Inc. continues to see improvement in its markets and is expected to grow earnings by 47% in 2011. This Zacks #1 Rank (strong buy) is trading at only 11.4x.

Underlying the four free stock picks is a simple truth that first appeared in a Financial Analysts Journal article published in 1979. Leonard Zacks, a Ph.D. from M.I.T. found that "earnings estimate revisions are the most powerful force impacting stock prices."  Zacks #1 Rank is awarded to a stock when analysts sharply upgrade their estimates of what the company will earn.

Today, Zacks is promoting its stock recommendations by offering four daily picks free to those who register here: Zacks Stock Recommendations