Hewlett-Packard tripled the size of its share repurchase programme to $12bn as China sales and better profit margins on its services boosted quarterly earnings, reports Reuters. The Q4 results, announced on Monday, were in line with HP’s better-than-expected preliminary figures two weeks earlier. After HP reported Q4 net profit of $2.4bn up from $2.1bn a year ago, its shares fell slightly in after-hours trading. Earlier this month, HP announced a $3bn deal to acquire 3Com Corp.