It was a mixed week on Wall Street, with the Nasdaq moving higher and the Dow moving lower, but there were plenty of stocks really making some serious moves. Let's take a closer look at five of this past week's biggest scorchers.


July 3

Weekly Gain




Shutterfly (NASDAQ:SFLY)



Zoegenix (NASDAQ:ZGNX)



Glu Mobile (NASDAQ:GLUU)



Dot Hill Systems (NASDAQ:HILL)



Source: Barron's.

Let's start with ZAGG. The maker of third-party accessories for mobile gadgets moved higher without making any material news on its own. It got off to a strong start after a Seeking Alpha article was published over the weekend suggesting that its stock is worth twice as much as its current value. Investors probably got excited about ZAGG later in the week as more reports pointed to a rollout of the new iPhone and the inevitable iWatch sooner rather than later.

ZAGG makes protective film screens and other accessories. New iOS devices in new size configurations will trigger fresh demand for ZAGG products.

Shutterfly was a pretty picture after sources told Bloomberg that the digital photo products company has hired Qatalyst Partners to find a buyer. It remains to be seen whether there's any truth to the chatter, but at least one analyst, Topeka Capital's Victor Anthony, thinks Shutterfly can command a price of $60 to $70 a share in a buyout. 

Zoegenix got a boost after making some headway in addressing the abuse concerns of its severe pain medication. The biotech is moving ahead with new formulations of Zohydro ER that will offer an extended release capsule and a tablet form that should reduce injection and nasal administration abuse. 

Glu Mobile continued to gain steam after rallying the prior week as a result of announcing developer support for the new Android TV platform, making two of its most popular games optimized for the larger Android TV screens. This week Glu Mobile kept its pipeline flowing, rolling out Hercules: The Official Game in partnership with MGM Interactive. The new title is available as a mobile app for Android and iOS users.

Finally we have Dot Hill Systems clocking in with a double-digit percentage gain after being added to a few market indices. The supplier of enterprise class storage systems is now a component of the broad-market Russell 3000 Index, small-cap Russell 2000 Index, and the worldwide Russell Global Index. Dot Hill earned the inclusion. Its stock has more than doubled over the past year after consistently blowing through Wall Street's quarterly profit targets.

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Rick Munarriz has no position in any stocks mentioned. The Motley Fool recommends and owns shares of Apple. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.