Tokyo’s stock market was closed Monday for Japan’s Culture Day, giving investors a breather after the Bank of Japan aggressively expanded its monetary stimulus effort on Friday. Tokyo’s Nikkei 225 vaulted 4.8% during Friday’s session, sending it ahead 7.3% for the week. The gain sent the Nikkei to its highest mark since 2007, although it is up less than 1% so far this year.