The market for subprime net interest securities showed strong growth during the first quarter, a new Inside B&C Lending analysis reveals. Overall, $3.02 billion in new NIM deals, securities backed by such leftover cash flows as prepayment penalties, were issued during the first three months of this year – an 11.4 percent year-to-year increase. On a quarterly basis, however, the story was different: NIM issuance was down 3.8 percent from the fourth quarter of