Mortgage origination volume was up sharply in the second quarter of 2017, but total production this year still trailed the pace set in 2016 because of slumping refinance activity. An estimated $455.0 billion of first-lien mortgages were originated in the second quarter, according to an exclusive new Inside Mortgage Finance ranking and analysis. That was up 18.2 percent from the January-March cycle, but production over the first six months of 2017 totaled just $840.0 billion, off 6.7 percent from the same period last year. Most other mortgage market indicators sent...[Includes two data tables]