World's 10 Brands That Lost the Most Value

Yahoo!
Yahoo! is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is best known for its web portal, search engine (Yahoo! Search) and for a variety of other services, including Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Finance, Yahoo! Groups, Yahoo! Answers, advertising, online mapping, video sharing, fantasy sports and its social media website. It is one of the most popular sites in the United States. According to news sources, roughly 700 million people visit Yahoo! websites every month. Yahoo itself claims it attracts "more than half a billion consumers every month in more than 30 languages."

Global rank: 5
Decline in brand value: 13 percent
Brand value: $3.9 billion
Industry: Internet services
Parent company: Yahoo
One-year change in revenue: -10.6 percent

Citi
Citigroup or Citi is an American multinational financial services corporation headquartered in Manhattan, New York City, New York, United States. Citigroup was formed from one of the world's largest mergers in history by combining the banking giant Citicorp and financial conglomerate Travelers Group in October 1998 (announced on April 7, 1998). The year 2012 marks Citi's 200th anniversary.

Global rank: 6
Decline in brand value: 12 percent
Brand value: $7.6 billion
Industry: Financial services
Parent company: Citigroup
One-year change in revenue: -5.2 percent