BlackBerry Plunges After Samsung Deal a No-Go; Taiwan Semiconductor Soars: Tech Winners & Losers

SAN FRANCISCO (TheStreet) -- BlackBerry tanked Thursday after Samsung denied it was in buyout talks with the Canadian smartphone maker, jerking the stock from its rocket-ride performance the previous day, when reports surfaced that the two handheld device makers were in deal discussions. Taiwan Semiconductor Manufacturing , meanwhile, rose sharply after posting fourth-quarter results that beat analysts' expectations, while chip giant Intel gave up ground going into its fourth quarter results. Bl...