First Republic Bank and Flagstar Bank increased their originations of jumbo mortgages during the second quarter of 2018. First Republic funded $3.13 billion in single-family originations during the quarter. Jumbos account for the vast majority of its production. Originations by First Republic were up by 34.3 percent from the previous quarter and up by 2.6 percent from the second quarter of 2017. Jim Herbert, chairman and CEO of First Republic, said the bank was able to boost production even though ...