Post-Olympics stock bounce in Japan depends on beating outbreak 3 min. today at 09:43 The Nikkei 225 is up just 0.5% for the year, among the worst-performing developed-market benchmarks tracked by Bloomberg The Nikkei 225 is up just 0.5% for the year, among the worst-performing developed-market benchmarks tracked by Bloomberg The shadow of the Olympics has hung over Japanâs range-bound stock market for months, with some fearing Covid disaster while others have hoped medal wins would help the country mentally move past the pandemic. With less than a week of the games to go, chances are looking good the Olympics themselves will be considered an achievement. Covid-related disruptions have been minimal, while Japanâs athletes have already taken home a record haul of 20 gold medals.