The average daily trading volume in agency MBS fell to $183.7 billion in June, the lowest reading of the year and another sign that all is not well for anyone who makes their living off of actual trading as opposed to being involved in new issuance. “There are a lot of people out there buying on credit and keeping MBS,” said Christopher Whalen, a senior managing director in the Financial Institutions Ratings Group at Kroll Bond Rating Agency. Whalen added...