[Alibaba U.S. stock turns upward pre-market, now up over 2%] Odaily Planet Daily reports, according to MSX.COM data, Alibaba (BABA.N) U.S. stock is up over 2% pre-market, after previously dropping over 1%. On the news front, Jack Ma has been purchasing over HK$600 million worth of Alibaba Hong Kong shares for consecutive days.