Photo taken Oct. 2, 2020, shows the Tokyo Stock Exchange. The bourse reopened normally the same day after trading in all shares was halted for the whole session the previous day due to a system glitch. (Kyodo) ==Kyodo

TOYKO - Tokyo Stock Exchange Inc. President and CEO Koichiro Miyahara resigned on Monday to take responsibility for a system failure in October that caused an unprecedented full-day trading suspension at the bourse.