S&P 500 — daily market movers
Macro backdrop
Oil shock drove a risk-off session. The S&P 500 closed at 7,636.36, down 0.48% (about -37 points), with the Dow and Nasdaq also modestly lower. U.S. forces had struck five Iranian oil tankers the prior day, and Iran retaliated with strikes on a U.S. base in Jordan; the escalation kept Brent crude above $100/barrel for the first time since July while Treasury yields hit fresh 52-week highs — together pressuring risk assets. Apple held a product event and unveiled its first foldable phone.
Top 10 gainers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | DDOG | Datadog Cloud application and infrastructure monitoring and observability SaaS | +7.15% | Analyst upgrades and price-target raises citing AI-driven growth in its observability platform. |
| 2 | META | Meta Platforms Social media (Facebook, Instagram, WhatsApp) and digital advertising, plus AI | +6.55% | Rallied on the launch of its AI agent 'Muse.' |
| 3 | FICO | Fair Isaac Credit-scoring models and lending analytics software | +5.35% | Rebound after the FHFA move earlier in the week that opened mortgage scores to rivals and had sharply sold off the stock. |
| 4 | HPE | Hewlett Packard Enterprise Enterprise servers, storage, networking and hybrid-cloud infrastructure | +5.12% | Fiscal-quarter earnings beat with record revenue and EPS and a raised outlook on surging AI-server demand. |
| 5 | HCA | HCA Healthcare Operator of for-profit hospitals and surgery centers across the U.S. | +4.93% | Rose after upbeat management remarks on patient demand at an investor conference. |
| 6 | AKAM | Akamai Technologies Content-delivery network and cloud cybersecurity services | +4.87% | Networking/security bid with bullish options activity and AI-security optimism; no single hard catalyst on the day. |
| 7 | MRVL | Marvell Technology Designs data-center, networking and custom AI silicon | +4.26% | Reiterated and raised its AI data-center growth outlook. |
| 8 | HPQ | HP Inc. Maker of PCs, laptops and printers plus printing supplies | +3.91% | Sympathy move on HPE's strong AI-server results and an enterprise-hardware read-across. |
| 9 | FFIV | F5, Inc. Application delivery, load-balancing and application-security hardware and software | +3.85% | Upgraded by JPMorgan. |
| 10 | IBM | International Business Machines Hybrid cloud, consulting, software, mainframes and quantum computing | +3.38% | Enterprise-tech and AI/quantum strength as part of a broader value-tech bid. |
- 1. DDOG+7.15%DatadogCloud application and infrastructure monitoring and observability SaaSAnalyst upgrades and price-target raises citing AI-driven growth in its observability platform.
- 2. META+6.55%Meta PlatformsSocial media (Facebook, Instagram, WhatsApp) and digital advertising, plus AIRallied on the launch of its AI agent 'Muse.'
- 3. FICO+5.35%Fair IsaacCredit-scoring models and lending analytics softwareRebound after the FHFA move earlier in the week that opened mortgage scores to rivals and had sharply sold off the stock.
- 4. HPE+5.12%Hewlett Packard EnterpriseEnterprise servers, storage, networking and hybrid-cloud infrastructureFiscal-quarter earnings beat with record revenue and EPS and a raised outlook on surging AI-server demand.
- 5. HCA+4.93%HCA HealthcareOperator of for-profit hospitals and surgery centers across the U.S.Rose after upbeat management remarks on patient demand at an investor conference.
- 6. AKAM+4.87%Akamai TechnologiesContent-delivery network and cloud cybersecurity servicesNetworking/security bid with bullish options activity and AI-security optimism; no single hard catalyst on the day.
- 7. MRVL+4.26%Marvell TechnologyDesigns data-center, networking and custom AI siliconReiterated and raised its AI data-center growth outlook.
- 8. HPQ+3.91%HP Inc.Maker of PCs, laptops and printers plus printing suppliesSympathy move on HPE's strong AI-server results and an enterprise-hardware read-across.
- 9. FFIV+3.85%F5, Inc.Application delivery, load-balancing and application-security hardware and softwareUpgraded by JPMorgan.
- 10. IBM+3.38%International Business MachinesHybrid cloud, consulting, software, mainframes and quantum computingEnterprise-tech and AI/quantum strength as part of a broader value-tech bid.
Common Themes
The leaderboard was dominated by enterprise tech and AI infrastructure: earnings and guidance (HPE, MRVL), analyst actions (F5, Datadog) and an AI product launch (META), spilling into networking/security (Akamai, F5) and legacy tech (IBM, HPQ). Even as oil dragged the index lower, money concentrated in software, semiconductors and networking gear. FICO (an oversold rebound) and HCA (healthcare demand) were idiosyncratic.
Top 10 losers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | CASY | Casey's General Stores Midwest convenience-store and fuel chain with in-store prepared food | -14.24% | Fiscal-quarter report showed inside/prepared-food sales growth missing expectations and a cooling outlook, despite an EPS beat. |
| 2 | VRT | Vertiv Holdings Data-center power, cooling and thermal-management equipment | -9.61% | Investors reassessed data-center cooling demand and rising competition risk. |
| 3 | CHTR | Charter Communications Cable broadband and pay-TV under the Spectrum brand | -8.13% | Broadband-repricing fears and subscriber-loss worries dragged the cable group lower. |
| 4 | CMCSA | Comcast Cable broadband, NBCUniversal media and Peacock streaming | -6.61% | CFO called internet pricing 'irrational,' flagging persistent broadband-subscriber losses. |
| 5 | COO | The Cooper Companies Maker of contact lenses and women's-health and surgical medical devices | -6.22% | Fiscal-quarter revenue came in below analyst estimates. |
| 6 | PSKY | Paramount Skydance Film and TV studio and Paramount+ streaming media company | -5.37% | Extended a steep 2026 media-sector decline; no single fresh catalyst confirmed on the day. |
| 7 | IP | International Paper Producer of containerboard and corrugated packaging | -5.07% | Bank of America downgrade to Neutral alongside softening containerboard pricing. |
| 8 | FSLR | First Solar Manufacturer of thin-film utility-scale solar panels | -4.76% | Solar-sector weakness amid rising rates and lingering policy uncertainty. |
| 9 | SW | Smurfit Westrock Global paper-based packaging and containerboard producer | -4.65% | Fell with the broader packaging group alongside International Paper's downgrade and pricing pressure. |
| 10 | DLTR | Dollar Tree Discount variety retailer operating Dollar Tree stores | -4.55% | Pullback after a strong run, with investors digesting recent insider sales. |
- 1. CASY-14.24%Casey's General StoresMidwest convenience-store and fuel chain with in-store prepared foodFiscal-quarter report showed inside/prepared-food sales growth missing expectations and a cooling outlook, despite an EPS beat.
- 2. VRT-9.61%Vertiv HoldingsData-center power, cooling and thermal-management equipmentInvestors reassessed data-center cooling demand and rising competition risk.
- 3. CHTR-8.13%Charter CommunicationsCable broadband and pay-TV under the Spectrum brandBroadband-repricing fears and subscriber-loss worries dragged the cable group lower.
- 4. CMCSA-6.61%ComcastCable broadband, NBCUniversal media and Peacock streamingCFO called internet pricing 'irrational,' flagging persistent broadband-subscriber losses.
- 5. COO-6.22%The Cooper CompaniesMaker of contact lenses and women's-health and surgical medical devicesFiscal-quarter revenue came in below analyst estimates.
- 6. PSKY-5.37%Paramount SkydanceFilm and TV studio and Paramount+ streaming media companyExtended a steep 2026 media-sector decline; no single fresh catalyst confirmed on the day.
- 7. IP-5.07%International PaperProducer of containerboard and corrugated packagingBank of America downgrade to Neutral alongside softening containerboard pricing.
- 8. FSLR-4.76%First SolarManufacturer of thin-film utility-scale solar panelsSolar-sector weakness amid rising rates and lingering policy uncertainty.
- 9. SW-4.65%Smurfit WestrockGlobal paper-based packaging and containerboard producerFell with the broader packaging group alongside International Paper's downgrade and pricing pressure.
- 10. DLTR-4.55%Dollar TreeDiscount variety retailer operating Dollar Tree storesPullback after a strong run, with investors digesting recent insider sales.
Common Themes
The decliners split into single-name earnings/guidance disappointments (Casey's on sales, Cooper on revenue) and sector-specific pressure: cable broadband repricing (Comcast, Charter), packaging (International Paper downgrade, Smurfit Westrock), and a data-center-cooling demand reassessment (Vertiv). Rising oil and yields amplified pressure on consumer-facing (Dollar Tree), solar (First Solar) and media (Paramount Skydance) names. There was no single macro cause — the weakness was spread across unrelated sectors.
Overall read
Money played 'defense but still chasing growth': with the oil shock dragging the broad index down, capital still flowed clearly into AI/semiconductors, enterprise software and networking (earnings- and analyst-driven) while rotating out of rate-sensitive and consumer/media/packaging names. The cable group's 'irrational pricing' comments were the day's clearest sector-level negative, triggering a rethink of the broadband business model.
Sources
- TheStreet — Market Today Sept 9 2026
- Yahoo Finance — S&P 500 (^GSPC)
- Charles Schwab — Crude Hits $100, Denting Stocks
- Seeking Alpha — Casey's slides 14% after earnings
- Quiver Quantitative — Vertiv slides on cooling-demand/competition
- Bloomberg — Comcast CFO 'irrational' internet pricing
- 24/7 Wall St. — Comcast/Charter broadband repricing
- StockStory — Cooper Companies Q2 CY2026 sales miss
- Yahoo Finance — International Paper slips after BofA downgrade
- Yahoo Finance — HPE up after boosting outlook, new AI server
- Motley Fool — Marvell raised outlook 3 times since December
- Nasdaq — JPMorgan upgrades F5 (FFIV)
- MarketBeat — IBM shares up 3.5% (Sept 9 2026)
- Yahoo Finance — Fair Isaac fell 16% on FHFA move
- ad-hoc-news — HCA rises on demand remarks
- ad-hoc-news — Dollar Tree falls on insider sales