Sept. 8 (Bloomberg) -- London Stock Exchange Group Plc, operator of the world's fourth-largest market, broke down on the busiest morning for European equities in nine months, hurting clients who trade an average $17.5 billion a day.
Trading resumed at 4 p.m. after an earlier computer failure left clients unable to buy or sell shares for about seven hours, according to the LSE's Web site.
About 352 million shares, worth about $2.5 billion, changed hands in the first hour of trading before the halt, more than twice the amount in the same period a week ago, sending the FTSE-100 index up as much as 3.8 percent.
