Mortgage bankers may originate loans and build loan pools, which they can then sell to big investors like Fannie Mae, Freddie Mac, Ginnie Mae, and jumbo loan investors. This is what distinguishes a mortgage banker. Some corporations choose to offer their loans via mortgage lenders rather than to large investors directly. Nevertheless, the usage of this term does not always represent a lender's size or influence, and it is not a good tool for measuring these variables.