On December 23, 2010 (Wednesday), the market was obviously affected by Christmas holidays, the global stock and forex market was light, only the Australian dollar held strong in all sessions by leveraging its high interest rate differential against other currencies. European debt problem remained a leading factor of forex markets. Yesterday the major credit rating agencies took actions frequently, after Moody's issued a negative outlook on Spain's banks, Greece, Fitch also put Greece on rating watch negative, saying that It probably cut Greece's ratings to junk-bond level. But it was reported that China was ready to buy 4-5 billion euros of Portuguese sovereign debt. China's central bank declined to comment on the report, causing European currencies to maintain the weak correction yesterday.