Yahoo Inc. (which owns about one-third of yahoo Japan) dropped the most since July 2010, slid 5.7%, to $16.33 during the trading session, after Japan Corp. slumped, as escalating concern about the earthquake's impacts that have a negative effect on the Japanese economy.

Moreover, Yahoo Japan declined 8.3% in Tokyo trading today, the largest one-day drop in two years, following yesterday's decline. On the other hand, the company faces another concern for investors will sell their stake, as the massive losses for the company.