Holdings of first-lien residential mortgages by banks and thrifts increased in the first quarter of 2018, according to a new ranking and analysis by Inside Nonconforming Markets. Banks and thrifts held $2.025 trillion of first-lien home loans as of the end of the first quarter, up 0.5 percent from December 2017 and up 4.8 percent from March of last year. Trends varied somewhat among the 10 largest holders of first liens, with some posting large gains on an ... [Includes one data chart]