Treasuries rose, headed for their biggest weekly gain in a month, as Japanese government yields slid to record lows.
Bonds are rallying globally as the U.K. vote to leave the European Union raises speculation the decision will curb economic growth. Japanese benchmark yields extended their push below zero as some economists predict the central bank will add to its record stimulus program following its next meeting July 29. All-time-low yields in Japan and Europe are driving investors to Treasuries. Taiwan’s 10-year yield dropped to a record.