UK's AO World soars after profit outlook upgrade, launches 10 mln pounds buyback
** Shares of AO World AO.L jump 10.3% to 92p; tops FTSE midcap index .FTMC ** Co raises FY adjusted profit before tax outlook to 45–50 mln pounds ($61.0–67.8 mln) from prior range of 40–50 mln pounds ** Announces first-ever share buyback programme of up to 10 mln pounds ** YTD, stock down about 12% ($1 = 0.7374 pounds) (Reporting by Judes Joseph in Bengaluru) ((judes.joseph@thomsonreuters.com;))