StocksMedium•29 September 2026•
1 min read

Fair Isaac Shares Plunge 27% in Worst Daily Performance Since 1989

Key Facts

1Fair Isaac shares plunged 27%, marking the company's worst daily performance since 1989.
2The crash followed a move by Fannie and Freddie to a single pricing grid that allows VantageScore to compete with FICO.

Fair Isaac shares plunged 27%, marking the company's worst daily performance since 1989. Benzinga reported that the crash followed a move by Fannie and Freddie to a single pricing grid that allows VantageScore to compete with FICO in the mortgage credit scoring sector.

FICO closed at $840.89 on September 28, 2026, with the session ranging between a high of $853.55 and a low of $832. This volatility coincides with broader shifts in the housing market, as separate data showed the MBA 30-Year Mortgage Rate reached 7.12% on September 23, 2026.