Japan stocks rally on weak yen; Shanghai declines By: MarketWatch January 06, 2011 at 05:56 AM EST Japanese stocks rise as strong U.S. jobs data inspire optimism and a weaker yen boosts exporters; Chinese shares decline as investors lock in gains. Read More >> Related Stocks: China Coal Energy Co. Ltd China Shenhua Energy Company Ltd Coca Cola Amatil Ltd Fanuc Ltd Unsp A ADR Gold Trust Ishares Insurance Australia Kyocera Corp ADR Ping An Ins ADR Tdk Corp ADR