The Nikkei 225 Index rose 257 points or 0.40 percent on Wednesday to close at 63741 points. Leading the gains are JX Holdings (4.67%), Idemitsu Kosan (4.37%) and Screen Holdings (4.12%). Top losers were Mercari Inc (-5.48%), Otsuka Holdings (-4.60%) and Sumitomo Dainippon (-4.20%).