Jack Ma`s 50-second video reappearance pushes Alibaba shares higher

The company`s American Depositary Receipts (ADRs) rose more than 5% on Wednesday, following a 8.5% gain in its Hong Kong-listed shares, after founder Ma made his first public appearance since October on Wednesday.  Ma had not appeared in public since Oct. 24, when he blasted China`s regulatory system. That set him on a collision course with officials and led to the suspension of a blockbuster $37 billion IPO for Alibaba`s financial technology affiliate Ant Group.