Upgrades
AAV – Advantage Oil and Gas upgraded to Buy from Hold at TD Newcrest
ENOC – EnerNOC upgraded to Outperform from Neutral at Credit Suisse
F – Ford Motor upgraded to Buy from Hold at Citigroup
AEO – American Eagle upgraded to Positive from Neutral at Susquehanna
AMR – AMR and Jetblue (JBLU) upgraded to Overweight from Neutral at JP Morgan
ASCA – Ameristar Casinos and MGM Resorts (MGM) upgraded to Buy from Hold at Jefferies
IPSU – Imperial Sugar upgraded to Buy at BWS Financial
SLE – Sara Lee upgraded to Overweight from Neutral at JP Morgan
PETM – PETsMART ests raised at Stifel Nicolaus ahead of earnings on 5/18
CRM – Salesforce.com Q1 earnings preview; expects slight upside to consensus revenue; inline EPS – RBC Capital Mkts
SUN – Sunoco: Refinery outages sink 1Q11 results; coke spin-off could boost valuation – Oppenheimer
Downgrades
HPQ – Hewlett-Packard: Expect modest upside to results due to tech demand & FX – Collins Stewart
VTAL – Vital Images downgraded to Accumulate at Craig Hallum
TKC – Turkcell downgraded to Sell from Neutral at Goldman
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