Report: New Credit Score Rule Could Cause Concern For Fair Isaac Investors

Shares of Fair Isaac Corporation FICO fell in mid-day trading Tuesday following a Dow Jones report a U.S. House-financing regulator is seeking to shake up the nation's credit score system.

The stock fell about 1.6% and touched below the $350 level.

The report suggested two incremental parts in the U.S. mortgage market, Federal National Mortgage Association FNMA and Freddie Mac FMCC, will be required to consider alternatives to the FICO scoring system, the software which aids in calculating a person's credit score. This change, as the report highlighted, could "threaten Fair Isaac's grip on the U.S. mortgage market."

Fair Isaac is the largest provider of FICO-related software.

Shares of Fannie and Freddie did not respond following the Dow Jones report.