Business WSE up 4.2% 25 January 2008 WIG, the main index, jumped by 4.2%, with 88% of traded stocks closing up on the day. (Parkiet, p. 1) More from Business All Yesterday 88.3% of Poles choose products from promotional flyers when shopping 2 days ago Poland prepares major highway upgrades as congestion grows 2 days ago Paid DataWalk secures U.S. patent protection for AI technology