The Federal Reserve Bank of New York has not committed to a defined auction schedule for non-agency mortgage-backed securities in the Maiden Lane II portfolio, which analysts warn could serve as a ceiling for prices on subprime MBS.“Not only was June’s auction the largest on record but it was also the least successful with just under 50 percent of the bid list being sold,” said David Austerweil, a director at Fitch Solutions. “Maiden Lane’s subpar auction results have ...