Hitoshi Tsunekage, chairman of Sumitomo Mitsui Trust Holdings Inc., speaks during an interview in Tokyo, Japan, on Tuesday, Dec. 25, 2012. Nikko Asset Management Co., the unit of Sumitomo Mitsui Trust Holdings Inc. that shelved an initial public offering in 2011, must reap 'sustainable' profit gains before listing its stock, Tsunekage said. Photographer: Akio Kon/Bloomberg via Getty Images