Two weeks later, the company announced the sale of select hedge funds and securities in an effort to reduce their exposure to mortgage related investments.

So investors compare such mortgage investments to 10-year treasuries.

There are two primary operation spaces that drive the revenues for the company and they are mortgage investment and mortgage banking operations.

"TBA" (meaning "to be announced") is also used to describe a specific type of simple mortgage investment, the forward mortgage-backed security.

NRJ Investment Group, a financial services company in Illinois which specializes in mortgage investments.

Prudential Securities plans to buy back more than $70 million worth of mortgage investments that were improperly sold to investors as being less risky than they actually were.

When the early projects demonstrate that that market exists, an acceleration in risk taking - with further mortgage investment and improvement activity - follows.

In the documents, the analysis of how the mortgage investments would perform in various interest-rate environments was apparently adjusted to minimize their true risk.

Although on a much smaller scale, the latest problem with the mortgage investments is reminiscent of the same troubles that led to the partnership scandal.

The company also agreed to change some of its business practices regarding mortgage investments, including the way it designs marketing materials.