Interest rate volatility and other issues caused a reduction in jumbo-related profitability at some nonbanks in the first quarter of 2015. However, many nonbank conduits remain optimistic that the jumbo business will pay off, particularly via issuance of mortgage-backed securities. Redwood Trust reported $2.0 million in income from residential mortgage banking activities in the first quarter of 2015, down 80 percent from the previous quarter. The decline was primarily due to lower margins on ...