The combined portfolio of the top five servicers actually declined slightly during the third quarter. Megabanks Wells Fargo, Chase and Bank of America shed a combined $26.8 billion during the third quarter, with $20.0 billion of that taking place at Wells. Mr. Cooper Group, the largest nonbank servicer, reported a slight $2.5 billion drop, although its subservicing portfolio grew 2.8% to $310.5 billion.