S&P 500 — daily market movers
Macro backdrop
A clear sector rotation. The Dow led with +1.08% while the S&P 500 added +0.33% and the Nasdaq barely budged at +0.08%. Wednesday's hot CPI and Thursday's September PPI (+6.3% y/y, the biggest since 2022) kept Fed rate-hike fears alive, but a sharp ~9-10bp drop in the 10-year Treasury yield cushioned valuations, pushing money out of AI hardware and semiconductors and into non-tech groups—health care, materials, consumer discretionary and financials. Roughly seven in ten S&P 500 members rose and small caps outperformed, confirming the rotation.
Top 10 gainers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | TTD | The Trade Desk Cloud-based demand-side platform for programmatic digital advertising | +7.80% | Rode the rotation into non-AI software and ad-tech as Treasury yields fell; no confirmed standalone catalyst on the day. |
| 2 | EFX | Equifax Global consumer credit bureau and data-analytics provider | +7.25% | Needham lifted its price target to $350, and falling yields boosted hopes for mortgage-related credit-inquiry demand. |
| 3 | RDDT | Reddit Social-community platform monetized through advertising | +7.24% | Communication-services led the session; ad-driven platforms drew money rotating out of AI hardware. |
| 4 | FICO | Fair Isaac FICO credit scores and decision-management analytics software | +6.99% | Lower Treasury yields lifted mortgage-activity expectations, helping a rebound after recent weakness. |
| 5 | IP | International Paper Corrugated packaging and containerboard manufacturing | +6.90% | Materials was one of the day's leading sectors (XLB +1.79%) as cyclicals caught the rotation bid. |
| 6 | APP | AppLovin Mobile app-marketing and AI-driven ad-monetization platform | +6.52% | Benefited from the broad rotation into non-AI application software and ad-tech names. |
| 7 | INTU | Intuit TurboTax, QuickBooks and Credit Karma financial software | +6.36% | Money rotated back into established non-AI application-software names as tech leadership narrowed. |
| 8 | COIN | Coinbase Largest US cryptocurrency exchange and custody platform | +6.32% | Financials strengthened and Bitcoin held up, lifting crypto-linked names in the rotation. |
| 9 | CSGP | CoStar Group Commercial real-estate data, analytics and online marketplaces | +6.28% | Gained on the combination of a firmer real-estate sector and the sharp drop in Treasury yields. |
| 10 | BLDR | Builders FirstSource Supplier and manufacturer of building materials for homebuilders | +6.25% | Homebuilding-linked names climbed as the yield drop fueled renewed rate-cut expectations. |
- 1. TTD+7.80%The Trade DeskCloud-based demand-side platform for programmatic digital advertisingRode the rotation into non-AI software and ad-tech as Treasury yields fell; no confirmed standalone catalyst on the day.
- 2. EFX+7.25%EquifaxGlobal consumer credit bureau and data-analytics providerNeedham lifted its price target to $350, and falling yields boosted hopes for mortgage-related credit-inquiry demand.
- 3. RDDT+7.24%RedditSocial-community platform monetized through advertisingCommunication-services led the session; ad-driven platforms drew money rotating out of AI hardware.
- 4. FICO+6.99%Fair IsaacFICO credit scores and decision-management analytics softwareLower Treasury yields lifted mortgage-activity expectations, helping a rebound after recent weakness.
- 5. IP+6.90%International PaperCorrugated packaging and containerboard manufacturingMaterials was one of the day's leading sectors (XLB +1.79%) as cyclicals caught the rotation bid.
- 6. APP+6.52%AppLovinMobile app-marketing and AI-driven ad-monetization platformBenefited from the broad rotation into non-AI application software and ad-tech names.
- 7. INTU+6.36%IntuitTurboTax, QuickBooks and Credit Karma financial softwareMoney rotated back into established non-AI application-software names as tech leadership narrowed.
- 8. COIN+6.32%CoinbaseLargest US cryptocurrency exchange and custody platformFinancials strengthened and Bitcoin held up, lifting crypto-linked names in the rotation.
- 9. CSGP+6.28%CoStar GroupCommercial real-estate data, analytics and online marketplacesGained on the combination of a firmer real-estate sector and the sharp drop in Treasury yields.
- 10. BLDR+6.25%Builders FirstSourceSupplier and manufacturer of building materials for homebuildersHomebuilding-linked names climbed as the yield drop fueled renewed rate-cut expectations.
Common Themes
The gainers cluster on two threads. First, non-AI software, data/credit analytics and ad-tech (TTD, APP, INTU, RDDT, CSGP, EFX, FICO) drew money rotating out of the AI-hardware complex. Second, rate-sensitive housing, materials and financial/crypto names (BLDR, IP, COIN) benefited directly from the sharp fall in Treasury yields. The credit- and real-estate-data names (EFX, FICO, CSGP) carried the strongest 'lower-rates-plus-mortgage-recovery' logic and led the board.
Top 10 losers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | HPE | Hewlett Packard Enterprise Enterprise servers, storage, networking and AI/hybrid-cloud infrastructure | -7.10% | Hit by the overnight Asian memory-chip rout and fears that spiking DRAM/server-memory prices will compress hardware margins. |
| 2 | DELL | Dell Technologies PCs, enterprise servers and storage, including AI-optimized systems | -6.80% | Same memory-cost squeeze and AI-hardware profit-taking that pressured server makers across the session. |
| 3 | ANET | Arista Networks High-speed Ethernet switches for data-center and AI/cloud networking | -5.04% | AI-capex derating pushed data-center networking valuations lower. |
| 4 | WMB | Williams Companies Natural-gas gathering, processing and interstate pipelines | -4.92% | Energy was the weakest sector of the day (XLE -1.58%). |
| 5 | COHR | Coherent Optical components, lasers and photonics for datacom and telecom | -4.83% | AI optical-components group fell alongside the sell-off in networking and AI hardware. |
| 6 | TER | Teradyne Automated test equipment for semiconductors and industrial robotics | -4.52% | The memory-chip rout triggered a broad sell-off in semiconductor-equipment names. |
| 7 | KEYS | Keysight Technologies Electronic test-and-measurement instruments and software | -4.35% | Dragged down with the test-equipment and broader semiconductor chain. |
| 8 | FIX | Comfort Systems USA Mechanical, HVAC and electrical installation, including for data centers | -3.92% | Spillover from cooling sentiment toward data-center capital-spending exposure. |
| 9 | CTVA | Corteva Agricultural seeds, traits and crop-protection chemicals | -3.88% | Fell against a rising materials sector with no clear single-day catalyst; likely stock-specific or intra-sector divergence. |
| 10 | AMAT | Applied Materials Semiconductor wafer-fabrication equipment | -3.72% | Semiconductor-equipment names slid broadly on the memory rout and lingering China export concerns. |
- 1. HPE-7.10%Hewlett Packard EnterpriseEnterprise servers, storage, networking and AI/hybrid-cloud infrastructureHit by the overnight Asian memory-chip rout and fears that spiking DRAM/server-memory prices will compress hardware margins.
- 2. DELL-6.80%Dell TechnologiesPCs, enterprise servers and storage, including AI-optimized systemsSame memory-cost squeeze and AI-hardware profit-taking that pressured server makers across the session.
- 3. ANET-5.04%Arista NetworksHigh-speed Ethernet switches for data-center and AI/cloud networkingAI-capex derating pushed data-center networking valuations lower.
- 4. WMB-4.92%Williams CompaniesNatural-gas gathering, processing and interstate pipelinesEnergy was the weakest sector of the day (XLE -1.58%).
- 5. COHR-4.83%CoherentOptical components, lasers and photonics for datacom and telecomAI optical-components group fell alongside the sell-off in networking and AI hardware.
- 6. TER-4.52%TeradyneAutomated test equipment for semiconductors and industrial roboticsThe memory-chip rout triggered a broad sell-off in semiconductor-equipment names.
- 7. KEYS-4.35%Keysight TechnologiesElectronic test-and-measurement instruments and softwareDragged down with the test-equipment and broader semiconductor chain.
- 8. FIX-3.92%Comfort Systems USAMechanical, HVAC and electrical installation, including for data centersSpillover from cooling sentiment toward data-center capital-spending exposure.
- 9. CTVA-3.88%CortevaAgricultural seeds, traits and crop-protection chemicalsFell against a rising materials sector with no clear single-day catalyst; likely stock-specific or intra-sector divergence.
- 10. AMAT-3.72%Applied MaterialsSemiconductor wafer-fabrication equipmentSemiconductor-equipment names slid broadly on the memory rout and lingering China export concerns.
Common Themes
The losers are dominated by AI hardware, networking, optics and semiconductor equipment (HPE, DELL, ANET, COHR, TER, KEYS, AMAT, FIX). An overnight memory-stock rout in Asia (Samsung, SK Hynix) stoked fears that rising DRAM and server-memory prices will squeeze server and hardware margins, and a broader 'tiring of AI capex' mood dragged the whole AI compute chain lower. Two non-tech names stand apart: WMB sat in the day's worst sector (energy), while CTVA fell against a rising materials sector with no obvious catalyst—more likely a stock-specific move.
Overall read
Money rotated decisively out of the AI/semiconductor compute chain and energy and into software, data analytics, housing-linked and financial names, driven by a repricing of rate-sensitive assets as Treasury yields dropped sharply. It was a textbook 'sell AI hardware, buy rate-sensitive growth and non-tech' session, with the Dow and small caps sharply outperforming a nearly flat Nasdaq.