• May Day holiday shutters markets from China to Hong Kong • Crude derailed by resurgent concern over global oil glut The yen traded around its strongest level in more than 18 months as concern over the global economy damps the outlook for U.S. interest-rate increases. Index futures signaled declines in Asia, with many markets closed for holidays. Japan’s currency traded below 107 per dollar after touching its strongest level since October 2014 versus the greenback following a 5.7 percent climb in April. Futures on stock gauges in Japan, Australia and South Korea dropped at least 0.1 percent in trading at the end of ... (full story)