Global Market: Fed pause sparks Treasury twist, rattles bond markets

The Federal Reserve's decision to keep interest rates unchanged triggered an unusual steepening of the US Treasury yield curve, with long-term yields surging while short-term yields fell. Investors questioned the Fed's commitment to fighting inflation, pushing the 30-year Treasury yield to a 19-year high. Markets now await the US July payrolls report for clues on the Fed's next policy move.