Among the stock activity stories for Friday, April 18, from AP Financial News:
NEW YORK (AP) _ Shares of radiation therapy device maker TomoTherapy are plunging after the company posted disappointing first-quarter results and cut its full-year outlooks.
NEW YORK (AP) _ Shares of Overstock.com Inc. soared Friday after the online discount retailer reported its first-quarter loss narrowed dramatically and sales rose 27 percent, beating analysts' expectations.
NEW YORK (AP) _ Shares of Callaway Golf Co. rose Friday after the golf-equipment maker forecast first-quarter results above analyst expectations.
NEW YORK (AP) _ Shares of Manpower Inc. jumped on Friday, after the staffing firm's overseas presence drove a better-than-expected first-quarter profit.
NEW YORK (AP) _ Tempur-Pedic shares climbed in Friday morning trading after the mattress maker forecast a profit in 2008 that is smaller than what it earned the previous year, but mostly above Wall Street expectations.