Treasury and mortgage rates have again reached their post-August highs, but still in tight ranges: the 10-year T-note 3.48%, low-fee mortgages just under 5.25%. The producer price index fell hard in September, down .6%, the much-hoped-for re-building of inventories not yet underway. Initial claims for unemployment insurance unexpectedly rose, back in the 525,000-550,000 weekly band. […]