Mortgage rates slightly decreased last week, with the average 30-year rate at 6.18% and the 15-year rate at 5.5%. The 10-year Treasury yield, closely tied to mortgage rates, fluctuated due to conflicting economic data. Rates are expected to remain stable in the final week of the year amidst holiday trading schedules. Purchase and refinance mortgage applications are down as the year closes.

Read more at Yahoo Finance: 30-year mortgage rates dip lower