Volterra Semi BOOSTED to Buy and 4 Analyst-Upgraded Shares to Watch

Wall St. Watchdog reveals information about companies for which stock analysts upgraded the shares on July 27th.

Metabolix (NASDAQ:MBLX): Ardour Capital upgraded its rating on this company from Hold to Accumulate and changed its price target to $2.5.

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SBA Comm (NASDAQ:SBAC): Stifel Nicolaus upgraded its rating on this company from Hold to Buy and changed its price target to $70.

Volterra Semi (NASDAQ:VLTR): National Securities upgraded its rating on this company from Neutral to Buy and changed its price target to $26.

Quality Systems (NASDAQ:QSII): Oppenheimer upgraded its rating on this company from Perform to Outperform and changed its price target to $20.

Medifast (NYSE:MED): Northland Securities upgraded its rating on this company from Market Perform to Outperform and changed its price target from $16 to $29.

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