Asia stocks mostly retreat after gains By: MarketWatch March 12, 2013 at 20:14 PM EDT Most Asia stock markets retreat, with Japanese shares pausing after a near 20% gain this year and Australian shares edging away from June 2008 levels. Read More >> Related Stocks: Australia & N Z Bkg Canon Inc ADR National Australia Bank Ltd [Victoria Australia Nikon Corp ADR Samsung Electronics Ltd Sharp Corp Westpac Banking Corp Ltd