LONDON/SINGAPORE—Global shares edged up on Wednesday after the Bank of Japan rocked the markets by unexpectedly deciding to loosen its tight leash on government bond yields, with the yen then scoring its biggest one-day gain against the dollar in 24 years.
The MSCI All-World index rose 0.1 percent on the day, although it is on track for a 4.4 percent decline in December. This year, the index is set to have fallen for eight out of 12 months, on a par only with 2008 for the number of monthly losses in a calendar year on record.
