Princeton, New Jersey, July 31 (Bloomberg Data) -- The following is a list of North and South American stocks on which analysts changed their ratings or began coverage today. The table is sorted by firm alphabetically and by stock ticker. Data is compiled thru firm releases.

Argentina Research Ticker Analyst Recommendation Action Target FRAN AR Roberto Drimer accumulate upgraded 13.6

Caris & Company Ticker Analyst Recommendation Action Target SUNW US Shebly Seyrafi above average upgraded 6.3

CE Unterberg Towbin Ticker Analyst Recommendation Action Target OSIP US Andrew S Fein market perform downgraded

CIBC World Markets Ticker Analyst Recommendation Action Target CCO CN Cliff Hale-Sanders sector outperform upgraded 53

Credit Suisse Ticker Analyst Recommendation Action Target BBAS3 BZ Roberto Attuch outperform upgraded 25

CRT Capital Group Ticker Analyst Recommendation Action Target HMA US Sheryl R Skolnick sell downgraded 7.2

Deutsche Bank Ticker Analyst Recommendation Action Target KOF US Reinaldo Santana buy upgraded 53

Friedman, Billings, Ramsey & C Ticker Analyst Recommendation Action Target GYMB US Adrienne E Tennant outperform upgraded 47

Jefferies Ticker Analyst Recommendation Action Target FE US Paul B Fremont buy upgraded 69 KNOL US Romeo Reyes buy upgraded 20 OPTM US John Lau hold downgraded 12

Jesup & Lamont Ticker Analyst Recommendation Action Target GR US Alex P Hamilton buy new rating 73 IRBT US Alex P Hamilton buy new rating 24

JPMorgan Ticker Analyst Recommendation Action Target DHT US Jonathan B Chappell neutral downgraded NSTC US Christine Pezino overweight new rating NVTL US Paul T Coster underweight downgraded SFL US Jonathan B Chappell overweight upgraded

Keefe, Bruyette & Woods Ticker Analyst Recommendation Action Target CLFC US Manuel Ramirez outperform new rating 18

KeyBanc Capital Markets Ticker Analyst Recommendation Action Target IFF US Michael J Sison aggressive buy upgraded 63 KOP US Saul H Ludwig aggressive buy upgraded 40 ROH US Michael J Sison aggressive buy upgraded 72 SXT US Michael J Sison buy upgraded 31

Maxim Group LLC Ticker Analyst Recommendation Action Target OLED US Darice Liu sell downgraded

Merrill Lynch Ticker Analyst Recommendation Action Target AKAM US Ed Maguire neutral new rating HSNGY US Alistair Scarff neutral upgraded 16.23 MTG US Robert P Ryan neutral downgraded PSO US Paul Sullivan buy upgraded 18 WY US Ross Gilardi neutral downgraded

Morgan Stanley Ticker Analyst Recommendation Action Target LDK US Max Lee Overwt/Attractive new rating 56.40000

Needham & Co Ticker Analyst Recommendation Action Target CVTX US Mark Monane hold downgraded

Nollenberger Capital Ticker Analyst Recommendation Action Target BGFV US Michael Mctighe neutral new rating

Piper Jaffray & Co Ticker Analyst Recommendation Action Target IVAC US Jesse W Pichel market perform downgraded 17

RBC Capital Markets Ticker Analyst Recommendation Action Target MRT US Larry A Miller outperform upgraded 22 VCLK US Jordan Rohan sector perform upgraded 20 WRES US Leo P Mariani outperform new rating 16

Robert W. Baird & Co Ticker Analyst Recommendation Action Target FELE US Michael A Schneider underperform downgraded 45

Roth Capital Partners Ticker Analyst Recommendation Action Target FTEK US Mark Tobin hold downgraded 33

Soleil Securities Ticker Analyst Recommendation Action Target CHG US Maurice E May hold upgraded 40

SunTrust Robinson Humphrey Ticker Analyst Recommendation Action Target ARP US Mark D Hughes neutral downgraded

Susquehanna Financial Group Ticker Analyst Recommendation Action Target GYMB US Thomas A Filandro Positive upgraded

TD Newcrest Ticker Analyst Recommendation Action Target CCO CN Greg Barnes hold downgraded 49 CG CN Greg Barnes speculative buy upgraded 10 NAE-U CN Roger Serin buy upgraded 13.5

Troika Dialog Ticker Analyst Recommendation Action Target CTCM US Evgeny Golossnoy buy upgraded 31

UBS Ticker Analyst Recommendation Action Target ETE US Ronald J Barone reduce 2 downgraded 36 ETP US Ronald J Barone reduce 2 downgraded 50 EXC US Ronald J Barone buy 2 upgraded 82 VZ US John C Hodulik buy 1 upgraded 48

Wachovia Securities Ticker Analyst Recommendation Action Target FPL US Samuel Brothwell outperform upgraded 63

To contact the reporter on this story: Sybil Chahbandour in Princeton at (+1)609-279-3615 or chahbandour@bloomberg.net

Last Updated: July 31, 2007 09:25 EDT