S&P 500 — daily market movers
Macro backdrop
Mixed close on the final day of Q3. The S&P 500 slipped -0.25% and the Dow fell -0.86%, while the Nasdaq edged up +0.24%. Softer-than-expected PCE inflation data was offset by a looming Oct 1 government shutdown and climbing Treasury yields, and beneath the quiet index moves money rotated out of AI hardware/chips, defense and staples into enterprise software.
Top 10 gainers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | GEN | Gen Digital Consumer cyber-safety brands: Norton, Avast, LifeLock and identity protection | +5.61% | CEO played down GoDaddy competitive fears and lifted the outlook, driving the biggest gain in the index. |
| 2 | CBOE | Cboe Global Markets Operates options, futures and equities exchanges, including SPX index options | +5.17% | Jumped after securing a 25-year extension of its exclusive SPX options license, cementing a key revenue moat. |
| 3 | SNPS | Synopsys Electronic design automation (EDA) software and IP for chip design | +4.78% | Announced a $1 billion share buyback, extending a multi-day winning streak on AI/EDA demand tailwinds. |
| 4 | HPE | Hewlett Packard Enterprise Enterprise servers, storage, networking and hybrid-cloud infrastructure | +3.90% | Rose on new AI server/infrastructure deals and an upbeat growth outlook, aided by softer inflation data. |
| 5 | FDS | FactSet Research Systems Financial data, analytics and research platforms for investment professionals | +3.84% | Gained after fiscal Q4 earnings beat estimates, reported the same day. |
| 6 | INTC | Intel Designs and manufactures CPUs, and runs a contract chip-foundry business | +3.71% | Rebounded on renewed foundry optimism as buyers defended the bullish trend; no single hard catalyst. |
| 7 | ACN | Accenture Global IT consulting, technology services and systems integration | +3.53% | Climbed alongside the enterprise-software/IT-services strength ahead of its upcoming Q4 report. |
| 8 | PSKY | Paramount Skydance Film/TV studios, broadcast networks and the Paramount+ streaming service | +3.40% | Rose after a federal judge cleared a hurdle in its Warner Bros. Discovery acquisition. |
| 9 | NOW | ServiceNow Cloud platform for IT, employee and customer workflow automation | +3.13% | Part of a rotation into software as an 'AI pacing' debate pressured chips and lifted enterprise-software names. |
| 10 | ADBE | Adobe Creative, document and digital-experience software (Photoshop, Acrobat) | +2.90% | Advanced with the software rotation, recovering despite lingering concerns over a soft Q4 outlook. |
- 1. GEN+5.61%Gen DigitalConsumer cyber-safety brands: Norton, Avast, LifeLock and identity protectionCEO played down GoDaddy competitive fears and lifted the outlook, driving the biggest gain in the index.
- 2. CBOE+5.17%Cboe Global MarketsOperates options, futures and equities exchanges, including SPX index optionsJumped after securing a 25-year extension of its exclusive SPX options license, cementing a key revenue moat.
- 3. SNPS+4.78%SynopsysElectronic design automation (EDA) software and IP for chip designAnnounced a $1 billion share buyback, extending a multi-day winning streak on AI/EDA demand tailwinds.
- 4. HPE+3.90%Hewlett Packard EnterpriseEnterprise servers, storage, networking and hybrid-cloud infrastructureRose on new AI server/infrastructure deals and an upbeat growth outlook, aided by softer inflation data.
- 5. FDS+3.84%FactSet Research SystemsFinancial data, analytics and research platforms for investment professionalsGained after fiscal Q4 earnings beat estimates, reported the same day.
- 6. INTC+3.71%IntelDesigns and manufactures CPUs, and runs a contract chip-foundry businessRebounded on renewed foundry optimism as buyers defended the bullish trend; no single hard catalyst.
- 7. ACN+3.53%AccentureGlobal IT consulting, technology services and systems integrationClimbed alongside the enterprise-software/IT-services strength ahead of its upcoming Q4 report.
- 8. PSKY+3.40%Paramount SkydanceFilm/TV studios, broadcast networks and the Paramount+ streaming serviceRose after a federal judge cleared a hurdle in its Warner Bros. Discovery acquisition.
- 9. NOW+3.13%ServiceNowCloud platform for IT, employee and customer workflow automationPart of a rotation into software as an 'AI pacing' debate pressured chips and lifted enterprise-software names.
- 10. ADBE+2.90%AdobeCreative, document and digital-experience software (Photoshop, Acrobat)Advanced with the software rotation, recovering despite lingering concerns over a soft Q4 outlook.
Common Themes
The gainers split into two clear threads. The strongest is a rotation into enterprise software (NOW, ADBE, ACN, SNPS, FDS) as an 'AI pacing' debate pressured chip/hardware names and pushed money into software. The rest ran on clean single-stock catalysts: GEN's raised outlook, CBOE's 25-year SPX license, HPE's AI deals, PSKY's M&A court win and FDS's earnings beat. INTC was more of a technical/foundry-optimism rebound.
Top 10 losers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | JBL | Jabil Contract electronics manufacturing and supply-chain services | -10.03% | Sell-the-news: beat fiscal Q4 and raised FY27 guidance on AI demand, but shares slid on margin/valuation concerns after a big run. |
| 2 | MRNA | Moderna mRNA vaccines and mRNA-based oncology and therapeutics research | -5.35% | Fell after Citi downgraded to Sell, seeing roughly 60% downside on valuation after a sharp run since mid-August. |
| 3 | APP | AppLovin Mobile ad-tech and app-monetization software platform | -4.98% | Extended declines on competitor concerns and an ongoing securities-fraud lawsuit plus analyst caution. |
| 4 | GIS | General Mills Packaged foods: cereals, snacks and pet food (Cheerios, Blue Buffalo) | -4.91% | Dropped on analyst caution and soft guidance amid broad consumer-staples/packaged-food weakness. |
| 5 | GM | General Motors Automaker: cars, trucks and EVs (Chevrolet, GMC, Cadillac) | -4.31% | Suffered its worst session in over a year on market-share concerns and broad auto-sector weakness. |
| 6 | NOC | Northrop Grumman Defense and aerospace: aircraft, space systems and missiles | -4.19% | Fell despite having raised its 2026 forecast, hit by defense-sector weakness with a shutdown looming at fiscal year-end. |
| 7 | MKC | McCormick Spices, seasonings, condiments and flavor solutions | -4.13% | Slid near a 52-week low around its fiscal Q3 results as analysts turned cautious on the staples group. |
| 8 | FICO | Fair Isaac FICO credit scores and decision-analytics software | -4.11% | Extended a steep plunge as Fannie/Freddie opened the door to a scoring rival, with a BofA downgrade on regulatory risk. |
| 9 | CEG | Constellation Energy Largest US nuclear operator and clean-power generator | -3.99% | Continued to slide as the power/independent-power-producer trade unwound after a sharp prior-week drop. |
| 10 | ITW | Illinois Tool Works Diversified industrial manufacturer of engineered components and equipment | -3.67% | Fell after Deutsche Bank issued a Sell recommendation citing guidance concerns. |
- 1. JBL-10.03%JabilContract electronics manufacturing and supply-chain servicesSell-the-news: beat fiscal Q4 and raised FY27 guidance on AI demand, but shares slid on margin/valuation concerns after a big run.
- 2. MRNA-5.35%ModernamRNA vaccines and mRNA-based oncology and therapeutics researchFell after Citi downgraded to Sell, seeing roughly 60% downside on valuation after a sharp run since mid-August.
- 3. APP-4.98%AppLovinMobile ad-tech and app-monetization software platformExtended declines on competitor concerns and an ongoing securities-fraud lawsuit plus analyst caution.
- 4. GIS-4.91%General MillsPackaged foods: cereals, snacks and pet food (Cheerios, Blue Buffalo)Dropped on analyst caution and soft guidance amid broad consumer-staples/packaged-food weakness.
- 5. GM-4.31%General MotorsAutomaker: cars, trucks and EVs (Chevrolet, GMC, Cadillac)Suffered its worst session in over a year on market-share concerns and broad auto-sector weakness.
- 6. NOC-4.19%Northrop GrummanDefense and aerospace: aircraft, space systems and missilesFell despite having raised its 2026 forecast, hit by defense-sector weakness with a shutdown looming at fiscal year-end.
- 7. MKC-4.13%McCormickSpices, seasonings, condiments and flavor solutionsSlid near a 52-week low around its fiscal Q3 results as analysts turned cautious on the staples group.
- 8. FICO-4.11%Fair IsaacFICO credit scores and decision-analytics softwareExtended a steep plunge as Fannie/Freddie opened the door to a scoring rival, with a BofA downgrade on regulatory risk.
- 9. CEG-3.99%Constellation EnergyLargest US nuclear operator and clean-power generatorContinued to slide as the power/independent-power-producer trade unwound after a sharp prior-week drop.
- 10. ITW-3.67%Illinois Tool WorksDiversified industrial manufacturer of engineered components and equipmentFell after Deutsche Bank issued a Sell recommendation citing guidance concerns.
Common Themes
The losers cluster around three themes. First, consumer-staples/packaged-food weakness on analyst caution and soft guidance (GIS, MKC). Second, high-flyers and idiosyncratic blow-ups giving back gains or hit by news: JBL's post-earnings sell-off, MRNA's Citi downgrade, APP's litigation overhang and FICO's regulatory shock. Third, industrials/defense caution (NOC, ITW's Sell rating, GM's market-share worries), plus CEG on the power-trade unwind.
Overall read
On the last day of Q3, money rotated out of AI hardware/chips, consumer staples, defense and rate-sensitive power names and into enterprise software plus stocks with clean idiosyncratic catalysts. The Dow's underperformance (-0.86%) reflects the industrials/staples/defense weakness, while the Nasdaq stayed positive on the software bid — a defensive, discriminating tape rather than broad risk-on.