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Stocks to Watch: EA, WYNN, DMND & More

Check out which companies are making headlines after-the-bell Monday:

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Electronic Arts - The videogame publisher posted earnings of 17 cents a share, excluding one-time items, edging past expectations for 16 cents a share. However, the firm handed in a disappointing full-year outlook, sending shares sharply lower in extended-hours trading. (Click here for after-hours quotes.)

Wynn Resorts - The casino resort operator reported earnings of $1.33 a share on revenue of $1.31 billion, missing expectations for $1.41 a share on sales of $1.33 billion. Shares of the company fell in extended-hours trading. (Click here for after-hours quotes.)

Dendreon - The biotechnology company posted a narrower-than-expected loss of 59 cents a share, excluding one-time items, on revenue of $103.9 million. Analysts projected the firm to report a loss of 63 cents a share on revenue of $81 million. Still, shares were lower in extended-hours trading. (Click here for after-hours quotes.)

Rackspace Hosting - The cloud-computing firm posted earnings that missed expectations by a penny, while revenue came in better-than-expected. However, the firm reported cash flow results and cloud revenues that disappointed, sending shares plunging in extended-hours trading. (Click here for after-hours quotes.)

Mako Surgical - The developer of orthopedic knee procedure products posted a wider-than-estimated loss of 28 cents a share on revenue of 19.6 million. Analysts had expected the firm to report a loss of 20 cents a share on sales of $24 million. Shares of the company dropped heavily in extended-hours trading. (Click here for after-hours quotes.)

Tempur-Pedic - The mattress maker confirmed a holiday promotion during the May 16th to July 8th period on its TEMPUR-Cloud Supreme mattress set. Shares gained slightly in extended-hours trading after tumbling almost 15 percent in regular trading. (Click here for after-hours quotes.)

Diamond Foods - The packaged food manufacturer announced Brian Driscoll as its new president and CEO. Shares rallied in extended-hours trading. (Click here for after-hours quotes.)

Standard Micro - Gamco disclosed a 5 percent stake in the company in its 13D filing. Shares were largely unchanged in extended-hours trading. (Click here for after-hours quotes.)

Ultratech - The tech company was initiated with a "buy" rating and a $38 price target at Canaccord Genuity. (Click here for after-hours quotes.)

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