(ShareCast News) - Shares in United Carpets soared on Thursday as the company said full-year results would be ahead of expectations after booming second half sales.AIM-listed United said the improved trading performance seen in the first half of the financial year to March 31 had continued into the second half."On a like for like basis, sales for the second half increased by 6.4% against the comparable period last year," United said in a trading statement.United shares were up 19% to 13.24p at 1030 BST.