NEW YORK (

TheStreet

) --

CHANGE IN RATINGS

Aerosonic

(AIM) - Get Report

upgraded to buy at TheStreet Ratings.

ArthroCare

(ARTC)

downgraded to hold at TheStreet Ratings.

Diamond Offshore

(DO) - Get Report

downgraded at Guggenheim from Buy to Neutral, Guggenheim said. Valuation call, based on a $77 price target.

Edison

(EIX) - Get Report

downgraded at Argus from Buy to Hold, Argus Research said. Valuation call, as losses are mounting at EMG.

Gap

(GPS) - Get Report

upgraded at Argus from Hold to Buy, Argus Research said. $42 price target. Sales are strong across the board and the company is expanding margins.

Granite Construction

(GVA) - Get Report

downgraded at DA Davidson from Buy to Neutral, DA Davidson said. Valuation call, based on a $30 price target.

Knight Transportation

(KNX) - Get Report

upgraded at Stifel from Hold to Buy, Stifel Nicolaus said. Valuation call, based on an $18 price target.

Seattle Genetics

(SGEN) - Get Report

rated new Buy at Cantor Fitzgerald. $30 price target. New data should ultimately lead to more indications for Adcetris.

Urban Outfitters

(URBN) - Get Report

upgraded at William Blair to Outperform, William Blair said. Sales visibility is improving and the company should be able to expand margins.

Urban Outfitters upgraded at Brean from Sell to Hold. Estimates also upped, as the company faces easy comps and is realizing higher margins.

Worthington Steel

(WOR) - Get Report

downgraded at Keybanc to Hold from Buy. Domestic macro momentum is slowing.

STOCK COMMENTS / EPS CHANGES

Boston Properties

(BXP) - Get Report

numbers lowered at Jefferies. Shares of BXP now seen reaching $108, Jefferies said. Estimates also lowered on drag of large cash balance. Hold rating.

Celgene

(CELG) - Get Report

numbers raised at Jefferies. Shares of CELG now seen reaching $81, Jefferies said. Estimates also raised on Myeloma survey. Buy rating.

Questcor

(QCOR)

added to US 1 List at BofA/Merrill. Acthar should drive near-term sales growth. Buy rating and new $60 price target.

Urban Outfitters

(URBN) - Get Report

numbers raised at Credit Suisse.Shares of URBN now seen reaching $39, according to Credit Suisse. Estimates also increased, given better inventory control and higher realized margins. Neutral rating.

Urban Outfitters target raised at Jefferies.Shares of URBN now seen reaching $24, Jefferies said. Better second quarter sales. Underperform rating.

Urban Outfitters numbers raised at Oppenheimer.Shares of URBN now seen reaching $38, Oppenheimer said. Estimates also raised on blowout quarter. Outperform rating.

>To submit a news tip, email:

tips@thestreet.com

.

READERS ALSO LIKE:

>>What To Do if Washington Takes Your Retirement Dividends Away

>>Stocks to Watch: Barnes & Noble, Best Buy

Follow

TheStreet

on

Twitter

and become a fan on

Facebook.

This article was written by a staff member of TheStreet.