Notable Analyst Rating Changes 7/10: DELL, WFR, DRYS, DAN, NYX Upgraded; IBM, QGEN, TSON, FC Downgraded Jul 10, 2009 09:55AM

StreetInsider.com Notable Analyst Rating Changes:

UPGRADES:
Goldman Sachs upgrades Dell (Nasdaq: DELL) from Neutral to Buy and added the stock to their Conviction Buy List.

Citi upgrades MEMC Electronic Materials (NYSE: WFR) from Hold to Buy. Click here for the full report.

Cantor Fitzgerald upgrades DryShips Inc (Nasdaq ...