NEW YORK - January 20, 2010 - Wall Street may be drawing attention for its rebounding profits, but not all big banks are rolling in dough.

On Tuesday, Citigroup posted a $7.6-billion loss for the last three months of 2009, the banking giant's first unprofitable quarter since 2008. Similar bad news is expected today when Bank of America, Inc., Wells Fargo & Co. and U.S. Bancorp report their earnings.

Although these commercial banks may have substantial Wall Street operations, they rely heavily on bread-and-butter consumer lending - a business whose problems only now may be peaking along with the joblessness and other financial woes of ordinary Amerikans.

The picture is very different at Wall Street pillars Goldman Sachs Group, Inc. and Morgan Stanley, which mainly serve the financial needs of the world's largest companies.

These investment banks were hit early in the financial crisis due to their heavy involvement in the market for mortgage-backed securities, which crashed in 2008.

By the end of that year, of the five major Wall Street firms, only Goldman and Morgan Stanley were still standing as independent firms.

They recovered swiftly in 2009, allowing for the return of fat compensation packages. Morgan Stanley is expected to report strong fourth-quarter results today with Goldman Sachs following Thursday.