Shares of Fair Isaac Corp. (NYSE:FICO) extended losses in Wednesday afternoon trading, continuing a sharp sell-off triggered by federal regulatory changes and aggressive competitive pricing designed to break the company’s long-held monopoly over mortgage credit scoring.

Here’s what investors need to know.

FHFA Mandates Unified Mortgage Pricing Grid

The primary driver of the sell-off is a major policy shift announced late Monday by Federal Housing Finance Agency Director Bill Pulte. Pulte disclosed on X that government-sponsored enterprises Fannie Mae and Freddie Mac are eliminating dual pricing structures in favor of a single unified pricing grid.

Under the revised mandate, the lower-cost VantageScore model will operate on the same pricing grid as the traditional FICO Classic model. The regulatory intervention directly follows repeated criticisms from Pulte regarding FICO’s elevated scoring fees, removing structural barriers for lenders seeking alternative credit scoring options.

TransUnion Price War Accelerates VantageScore Adoption

Compounding the regulatory overhang, credit bureau TransUnion (NYSE:TRU) extended its promotional 99-cent pricing for the VantageScore 4.0 model through December 2028. Under the extended structure, lenders can purchase standalone VantageScore 4.0 originations for 99 cents or receive the model at no additional charge when purchasing a standard FICO score.

The steep pricing discount has driven rapid market adoption across the mortgage sector. TransUnion reported that between January and September 2026, VantageScore integration expanded to more than 1,100 mortgage lenders, including nine of the 15 largest mortgage originators in the United States.

FICO Stock Slides Wednesday

FICO Price Action: Fair Isaac shares were down 2.76% at $600.83 at the time of publication on Wednesday. The stock is trading at a new 52-week low, according to Benzinga Pro data.

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