** Shares of insurance firm Old Republic International ORI.N up 2.47% at $39 premarket
** Co announces a new $750 million share repurchase program
** New $750 mln buyback will begin after remaining $162 mln under the $1.10 bln program, announced on March 1 last year, is completed
** The buyback, in line with Rule 10b-18, has no set end date and may be altered or halted anytime without notice, co says
** As of last close, shares were up about 11.3% YTD