These Stocks Moved the Most Today: Tesla, Rivian, Occidental, Fair Isaac, Fermi, Kodiak AI, Bullish, Rigetti, and More
Oct 02, 2025 05:53:00 -0400 by Joe Woelfel | #TechnologyA trader works on the floor of the New York Stock Exchange. (Spencer Platt/Getty Images)
Key Points
- Fair Isaac rises sharply after new pricing models allow direct FICO score access, sidestepping credit bureaus.
- Tesla declines after the EV maker posts strong third-quarter deliveries.
- Occidental Petroleum agrees to sell its chemical division, OxyChem, for $9.7 billion in cash to Warren Buffett’s Berkshire Hathaway.
Stocks rose Thursday, led by the tech and materials sectors, as the U.S. government shutdown entered a second day.
These stocks made notable moves Thursday:
Tesla was down 5.1%. The electric-vehicle maker delivered 497,099 cars in the third quarter, up 29% from 384,122 vehicles in the second quarter and up 7.4% from 462,890 vehicles in the third quarter of 2024. For the year through September, Tesla has delivered 1,217,902 cars, down 5.9% in the same span of 2024.
Rivian Automotive fell 7.4%. The EV maker’s third-quarter deliveries of 13,201 vehicles rose nearly 32% from the prior year and were above analysts’ estimates of 12,000. The company narrowed its full-year guidance to between 41,500 and 43,500 deliveries, compared with a previous range of 40,000 to 46,000 units.
Occidental Petroleum was down 7.3% after the oil-and-gas company agreed to sell its chemical division, OxyChem, for $9.7 billion in cash to Warren Buffett’s Berkshire Hathaway. Berkshire’s Class B shares slipped 0.5%.
Fair Isaac , the credit scoring service provider, surged 18% after it unveiled new pricing models that would allow companies providing credit reports to directly access FICO scores, thereby bypassing credit bureaus like Equifax, TransUnion, and Experian. Jefferies analysts predicted the move would lead to growth in adjusted per-share earnings of between 20% and 25% for Fair Isaac. Equifax and TransUnion tumbled 8.5% and 11%, respectively. U.S.-listed shares of Experian declined 4.2%.
Fermi was down 12% to $28.78 after closing up nearly 55% to $32.53 in the Nasdaq-listed stock’s trading debut Wednesday. Fermi’s initial public offering was priced late Tuesday at $21 a share. The company aims to power AI data centers with natural gas plants and nuclear reactors.
Nvidia , the leading maker of artificial-intelligence chips, rose 0.9% to hit a fresh closing high. Shares of the chip maker have risen nearly 41% so far this year, amid several recent deals with companies like OpenAI and Intel.
Kodiak AI was up 15% at $6.83. Soros Fund Management acquired a 5.7% passive stake in the artificial-intelligence company.
Bullish gained 12%. The cryptocurrency-exchange operator said it would be adding crypto options trading to its platform on Oct. 8. Shares began trading on the New York Stock Exchange in August and gained 84% in their first day.
Rigetti Computing was up 19% at $35.41. The stock traded as high as $35.81 on Thursday, marking an intraday record. Shares have rallied since Tuesday, when Rigetti announced that it secured purchase orders worth a total $5.7 million for two quantum computing systems. Peers D-Wave Quantum and IonQ were up 14% and 10%, respectively, on Thursday.
Write to Joe Woelfel at joseph.woelfel@barrons.com and Mackenzie Tatananni at mackenzie.tatananni@barrons.com