Japan's Nikkei 225 took the biggest fall -- dropping 1.5% -- as Asian-Pacific markets posted mixed results Monday. Taiwan's Taiex, Hong Kong's Hang Seng Index and South Korea's Kospi slid 0.1%. Australia's S&P/ASX 200 rose 0.1%. China's Shanghai Composite closed up 0.5%. India's Sensex was up 0.3% at midafternoon.