Pomegra
Fair Isaac shares fell about 25% after FHFA said Fannie Mae and Freddie Mac will use one pricing grid, letting VantageScore compete with FICO on mortgages.
- Fair Isaac (FICO) fell as much as 24.6% on Tuesday to about $634, its steepest one-day drop in over six years.
- FHFA Director Bill Pulte said Fannie Mae and Freddie Mac will merge their pricing grids and add VantageScore to the FICO Classic grid.
- The shares are down roughly 50% in 2026 and about 27% in September, far below the November 2024 peak of $2,382.40.
Lead
Fair Isaac Corp. (NYSE: FICO) was the biggest decliner in the stock market today on Tuesday, September 29, 2026. Shares dropped about 20% in premarket trading to $675.39 and extended losses in the regular session to as much as 24.6%, near $634. The move is the company's sharpest one-day fall in more than six years.The trigger was an announcement from Federal Housing Finance Agency Director Bill Pulte that Fannie Mae (FNMA) and Freddie Mac (FMCC) will abandon separate pricing structures and move to a single grid. VantageScore will sit alongside the existing FICO Classic score on that grid. Trading in the shares was heavy, with more than 1.6 million shares changing hands.
What Happened to FICO Stock on Tuesday?
FICO shares fell by roughly a fifth to a quarter after the pricing-grid announcement, from a prior close of about $844. Pulte, who oversees both government-sponsored mortgage finance companies as their conservator, posted the change on X. He described the previous two-grid arrangement as something that "makes zero sense."
The credit bureaus also traded lower. TransUnion (TRU) and Equifax (EFX) fell roughly 4% to 7%, and Experian slipped about 1%. All three bureaus jointly own VantageScore, which they market as a competitor to FICO. Rocket Companies (RKT), the mortgage lender, gained about 1.6%. It plans to make VantageScore 4.0 its default option on agency-eligible loans starting in the fourth quarter. The broader market was little changed, so the selloff was specific to the company.
Why Does a Single Pricing Grid Threaten FICO?
A single grid removes the pricing advantage that made FICO the practical default for conforming mortgages. Fannie Mae and Freddie Mac charge loan-level price adjustments, risk-based fees set on a grid by a borrower's credit score and down payment. Until now, FICO Classic sat on the main grid, and lenders that chose VantageScore faced a financial disincentive. With both scores on the same grid, that penalty disappears.
The change matters because of how Fair Isaac earns money. The company charges lenders a fee each time a score is pulled, and it has raised those fees sharply in recent years. Mortgage origination is among the most lucrative uses of the score. If lenders can substitute a cheaper alternative without giving up favorable pricing, the per-pull model comes under direct competitive pressure.
The decision also has a credibility question attached. FHFA released grids roughly two weeks earlier that found VantageScore overstated credit quality by about 20 points relative to FICO. Treating the two scores as equivalent on pricing sits uneasily with that finding. Market participants have also flagged a risk that lenders could shop among scoring models for the most favorable fee outcome rather than the best read on default risk.
Strategic Context
Tuesday's drop follows a run of regulatory blows. In April, the two mortgage finance companies began accepting loans scored with VantageScore 4.0, and Fair Isaac shares fell that month. On September 4, the stock fell almost 17% after Pulte directed the companies to let all lenders use VantageScore, effective immediately.
Shares have now lost about half their value this year. The stock traded as high as $2,382.40 in November 2024, when its mortgage pricing power was at its peak. The current level is roughly a quarter of that high.
What Comes Next for FICO and the Credit Bureaus?
The next phase turns on how quickly lenders adopt VantageScore in practice. Rocket's fourth-quarter default switch is the first large test. Any additional lenders that follow would show whether the single grid shifts volume or only strengthens negotiating leverage over pull fees.
Fair Isaac has two main options. It can cut prices to defend volume, which lowers per-pull revenue, or it can shift toward other pricing structures and less mortgage-dependent products. Either path changes a business model built on high fees and a near-exclusive position in agency lending. For TransUnion and Equifax, the picture is mixed. Both benefit from higher VantageScore adoption, but both also earn revenue by distributing FICO scores, and both fell on the day.
Outlook
The single pricing grid ends the structural advantage that kept FICO at the center of US mortgage underwriting, and the market repriced the stock accordingly. The near-term signals to watch are lender adoption after Rocket's fourth-quarter switch, any FHFA follow-up on how the two scores are validated, and whether Fair Isaac adjusts its fee structure.
Mentioned tickers: FICO, FNMA, FMCC, TRU, EFX, RKT
