Stock market today: Asian shares mostly fall after Wall Street drop, Tokyo hits…

Asian shares were trading mostly lower on Wednesday after a decline overnight on Wall Street, while Tokyo's main benchmark momentarily hit another 30-year high. Japan's benchmark Nikkei 225 gained 0.2% in afternoon trading to 35,701.41. The Nikkei has been hitting new 34-year highs, or the best since February 1990 during the so-called financial “bubble.” Buying focused on semiconductor-related shares, and a cheap yen helped boost exporter issues. Australia's S & P/ASX 200 slipped 0.3% to 7,393.10. South Korea's Kospi dropped 2.0% to 2,447.09. Hong Kong's Hang Seng dove nearly 3.1% to 15,381.84. The Shanghai Composite shed 0.9% to 2…