The yield on the 10-year US Treasury note held around 5.11% on Thursday after surging 16 basis points in the previous session, remaining near its highest level since July 2007 as strong economic data heightened inflation concerns and strengthened expectations for further policy tightening. The rise in Treasury yields accelerated following a weak $70 billion auction of five-year notes. S&P Global data showed US private-sector activity expanded at its fastest pace in more than five years in September, with both the services and manufacturing sectors improving while facing stronger inflationary pressures. Several Fed officials have also reaffirmed support for last week’s rate increase while warning of persistent inflation risks. Markets are now pricing in around a 70% chance of a Fed rate hike in October, up from 55% a day earlier. Meanwhile, uncertainty surrounding US-Iran negotiations continued to keep oil prices elevated, adding further pressure to inflation expectations.