Analysts' Actions: ADTN COG HPQ NUS RKT

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Adtran ( ADTN) was upgraded at UBS to neutral from sell. Valuation call, based on a $24 price target, UBS said.

Infoblox ( BLOX) was upgraded at Sterne Agee to buy. $47 price target. Estimates also boosted, given stronger expected secular growth, Sterne Agee said.

Energy Company of Minas ( CIG) was downgraded to sell at TheStreet Ratings.

Cabot ( COG) was upgraded at Topeka to buy from hold. $45 price target. Recent weakness has created a buying opportunity, Topeka said.

Discover Financial Services ( DFS) was upgraded to buy from neutral at Citigroup. $56 price target. Risk/reward more attractive on pullback, Citigroup said.

Hewlett-Packard ( HPQ) was upgraded at Mizuho to neutral from underperform. $22 price target. Company is focused on growth opportunities and managing the declines in other areas, Mizuho said.

Nu Skin ( NUS) was upgraded at DA Davidson to buy from neutral. Valuation call, based on a $110 price target, DA Davidson said.

Pico Holdings ( PICO) was upgraded to hold at TheStreet Ratings.

Rock-Tenn ( RKT) was upgraded at DA Davidson to buy from neutral. Stocks has pulled back 21% since posting blowout earnings, DA Davidson said.

Stratasys ( SSYS) was upgraded at J.P. Morgan to overweight from neutral. $101.50 price target. Pullback provides entry point for long-term investors, J.P. Morgan said.

Stock Comments / EPS Changes

Costco ( COST) estimates were reduced at UBS through 2015. Membership fee income is trailing expectations, UBS said. Buy rating and $124 price target.

Citrix ( CTXS) estimates, price target were reduced at Credit Suisse. Shares are now seen reaching $85. Estimates were also cut, given the company's new guidance, Credit Suisse said. Outperform rating.

Chevron ( CVX) estimates were lowered at UBS through 2014. Company is seeing lower earnings across the board, UBS said. Neutral rating and $125 price target.

Potlach ( PCH) was upgraded at DA Davidson to buy from neutral. Stocks has pulled back 25% from recent highs.

RPM ( RPM) estimates, target were raised at Credit Suisse. Shares are now seen reaching $41. Estimates were also increased, as new products should drive growth, Credit Suisse said. Neutral rating.

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This article was written by a staff member of TheStreet.

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