TOKYO (Reuters) -Japan's biggest investment bank and brokerage Nomura Holdings recorded a 27% rise in fourth-quarter net profit to hit its highest ever full-year profit as revenue grew in each of its business segments over the year. The results are for the period up to the end of March and do not account for the market turmoil that followed the U.S. tariff announcements in April, however Nomura can ride out the volatility, its chief financial officer said. "A certain degree of volatility really works in favour of our business," CFO Takumi Kitamura said at an earnings briefing.