Mexico’s five-hour stock trading stoppage yesterday was caused by a failure with a component reportedly bought from a unit of NYSE Euronext.
OAO Moscow Exchange halted derivatives trading between 1 p.m. and 1:58 p.m. today.
CBOE said preliminary work in preparation for reconfiguring its computer systems caused the three-and-a-half-hour shutdown on April 25.
Japan's second major system error in seven months underscored the challenge the country faces to revive its reputation as a global equity hub.