Nikkei tipped to top 20,000 in 2015 By: CNBC.com News January 01, 2015 at 17:53 PM EST Japan's benchmark Nikkei 225 index is set to climb further next year, despite already rising more than 70 percent over the past two years, analysts say. Read More >> Related Stocks: Daiwa Securities ADR Daiwa Securities Group Inc Deutsche Bank Ag Mizuho Financial Group ADR