Here are some key trends detected by American Banker's survey on servicing:
Among the nation's 10 biggest servicers, only Home Savings of America saw its portfolio shrink.
The Irwindale, Calif., thrift's portfolio declined 17%. On average the top 10 grew their portfolios by 10%.
David S. Dusenbury, an analyst at CS First Boston, said most large servicers will continue to grow at a fast clip.
Countrywide Funding Corp., the nation's largest servicer, based in Pasadena, Calif., increased its portfolio 22% this year, to $97 billion.
The second-largest servicer, GE Capital Mortgage Services, Raleigh, N.C., fattened is portfolio 27%, to $83 billion.
Norwest Mortgage Inc., Des Moines, Iowa, also showed a strong improvement in its servicing portfolio. It swelled to $55 billion - a 21% gain.
The servicing portfolio at Chemical Residential Mortgage Corp., Perth Amboy, N.J., grew most among top 10 servicers, according to the survey.
It climbed from 13th at the end of last year to sixth. It gained 8.75%, to $54 billion.
The lender's portfolio was helped by the bank's recent acquisition of Margaretten & Co.
The portfolios of the 100 largest servicers increased about 4%
But Citicorp Mortgage Inc.'s portfolio took a dive.
The 10% decline in the Stamford, Conn., lender's portfolio size dropped it three places on American Banker's list, to No. 11.
California Federal Bank, Los Angeles, dropped an unequaled 36 places on the survey, to No. 64. The thrift's portfolio fell 56%.
Coast Federal Bank's portfolio also soured. The Los Angeles thrift's portfolio declined by 40%, to $6.8 billion.
Huntington Mortgage Co. also fared poorly in the first half. The Columbus, Ohio, lender saw its portfolio slide to $6.7 billion - a 31% decline.