S&P 500 Gains & Losses Today: Buffett's Berkshire Buys; Fair Isaac Soars, Equifax Falls

On Thursday, Oct. 2, 2025, Fair Isaac (FICO) shares surged 18% after announcing it would provide FICO scores directly to firms serving mortgage lenders, significantly pressuring credit bureaus Equifax (-8.5%) and TransUnion (-11%). Concurrently, Occidental Petroleum (OXY) fell 7.3% upon confirming a nearly $10 billion petrochemical division sale to Berkshire Hathaway, while Coinbase (COIN) gained 7.5% amid a cryptocurrency price revival. Major U.S. equities indexes posted modest gains, with materials and technology stocks offsetting declines in most sectors.

Analysis

The market witnessed significant single-stock divergence driven by strategic corporate actions and sector-specific catalysts. Fair Isaac (FICO) shares surged 18% after the company announced it would offer its consumer credit scores directly to firms servicing mortgage lenders, a move representing a major disruption to the traditional credit reporting value chain. This strategic pivot directly pressured the incumbent credit bureaus, causing Equifax (EFX) to plummet 8.5% and TransUnion (TRU) to drop nearly 11%. In the M&A space, Occidental Petroleum (OXY) fell 7.3% upon confirming the sale of its petrochemical division to Berkshire Hathaway for nearly $10 billion, indicating investor dissatisfaction with the divestiture. Concurrently, the technology and digital asset sectors showed strength; a revival in cryptocurrency prices drove Coinbase (COIN) up 7.5%, while Intel (INTC) gained 3.8% on reports that rival AMD is in talks to become a foundry customer, reinforcing the positive sentiment that has doubled the stock's value since its April low. Conversely, AES Corp. (AES) sank 7%, reversing prior gains as reports of a potential acquisition by a BlackRock-owned entity dissipated, highlighting the market's sensitivity to M&A speculation, particularly in the context of its strategic positioning to power AI data centers.

Key Decisions for Investors

• Investors should reassess the credit reporting sector, as Fair Isaac's direct-to-lender model poses a significant structural threat to Equifax and TransUnion, creating a potential long FICO, short EFX/TRU pairs trade opportunity.
• The sharp 7.3% decline in Occidental Petroleum's shares following its asset sale to Berkshire Hathaway signals market concern over the deal's valuation and strategic direction, warranting caution and a deeper analysis of the remaining entity's earnings power.
• Positions in Coinbase and Robinhood should be managed as high-beta plays on the cryptocurrency market, as their performance is heavily correlated with volatile digital asset prices rather than near-term, company-specific fundamentals.
• While Intel's potential foundry deal with AMD is a positive development for its turnaround story, investors should consider that the stock has already doubled from its year-to-date low, suggesting much of the optimism may be priced in.
• The significant pullback in AES Corp. shares, driven by the collapse of M&A rumors, presents an opportunity to re-evaluate the company based on its core fundamentals, particularly the long-term value of its contracts to power high-demand AI data centers.