Rates inched lower Friday as a decline in stocks boosted mortgage-backed securities. In economic news, the July Core PCE price index, the Fed’s preferred measure of inflation, rose 0.1% and was a mere 1.2% higher than one year ago. The Fed’s target rate for core inflation is 2.0%. Personal Income increased 0.4%, matching forecast. Consumer Sentiment fell to 91.9. A reading of 93.0 had been expected. No other key data will be released today.