TOKYO, Japan (AFP) — Japan’s Kyushu Railway skyrocketed 20 percent as the former state-owned firm made its Tokyo trading debut on Tuesday, after one of this year’s biggest initial public offerings. Shares in the firm, which raised 416 billion yen ($4.0 billion) this month, fetched 3,120 yen ($30) each, up 20 percent from their IPO price of 2,600 yen. The sale is the world’s third biggest this year after Postal Savings Bank of China’s $7.4 […]