Banks that extend warehouse lines of credit to nonbank originators saw their commitment levels fall 39 percent in the first quarter compared to the same period a year earlier, yet another sign that the origination market was extremely weak during the first three months of 2014. On a sequential basis, commitments dropped a more benign 10.8 percent, but it’s not unusual for some firms to keep a line open, even if they’re not utilizing their power to borrow. According to Inside Mortgage Finance estimates, banks and nonbanks had $27.0 billion in warehouse commitments on their books as of March 31, compared to $31.0 billion on December 31, and $45.0 billion a year ago. One active warehouse bank had...[Includes one data chart]