The other gainer this week is India's Patni Computer Systems ( PTI) which develops software and provides information technology services and business solutions. The stock is up 3.6% this week on reports that the company is mulling a majority stake sale potentially worth $1 billion. Potential suitors include Japan's NTT Data Corp, Fujitsu and the IT arm of India's Larsen and Toubro. Last week, the company reported a two-fold jump in its net profit to $33.3 million for the first quarter of 2010, on revenue growth of 10.0% year over year to $172.31 million. Among the significant ADR losers this week was Chinaâ¿¿s solar energy pack. Stocks including, Solarfun Power Holdings ( SOLF), LDK Solar ( LDK) and Trina Solar ( TSL) lost 23.1%, 24.6% and 26.1%, respectively.