Daily market update: Oct. 21, 2015

Our daily summary of market news, updated regularly with new tidbits

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We'll add more market news briefs throughout the day. Check back to read the latest. Mortgage Banker's Association's Weekly Applications Survey: The Market Composite Index increased 11.8 percent week-over-week on a seasonally adjusted basis. The Refinance Index increased 9 percent week-over-week. The seasonally adjusted Purchase Index increased 16 percent week-over-week.     Weiss Residential Research's August 2015 appreciation/depreciation report: The national percentage of depreciating homes rose from 23.40 percent in July 2015 to 27.0 percent in August. The national percentage of appreciating homes rose slightly from 56.8 percent in July 2015 to 59.3 percent in August. Flint, Michigan, was a top market by appreciation percentage; Hickory-Lenoir-Morganton, North Carolina, was a top market by depreciation percentage. Ellie Mae's September 2015 loan origination insights report: Average credit scores for closed loans fell to an average ...