register now for free unlimited access to reuterscom register london sept 9 reuters  euro zone bond yields jumped on friday after a report from the financial times that the european central bank could start discussions on shrinking its balance sheet in early october the ecb hiked rates on thursday by 75 basis points and has flagged further policy tightening to contain inflation a winding down of its its balance sheet would mark another step towards policy normalisation italys 10year bond yield was last up almost 9 basis points on the day at 403  while germanys 10year bund yield was up 1 bps at around 171 after falling 5 bps earlier in the session european shares trimmed their gains with the stoxx 600 index last up around 15 but off session highs stoxx reporting by dhara ranasinghe and samuel indyk editing by tommy reggiori wilkes