S&P 500 — daily market movers
Macro backdrop
The S&P 500 closed down 0.58% at 7,673.52. The Dow led declines (the day's biggest loser, off roughly 600 points) while the Nasdaq finished roughly flat, cushioned by strength in semiconductors and AI-infrastructure names. It was a risk-off session: a U.S.-Iran military clash in the Strait of Hormuz pushed crude up about 1.9% (to ~$93/bbl), Canada's retaliatory tariffs on U.S. goods took effect, and a strong jobs report kept September Fed rate-hike fears alive. Money rotated out of healthcare and travel and into the AI-infrastructure and commodity complexes.
Top 10 gainers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | LITE | Lumentum Data-center optical modules, pump lasers and optical-communications components | +11.04% | Sharp rally across the AI optical-networking group, sparked by AI-infrastructure deal news from Qualcomm and Corning that lifted optical-module names broadly. |
| 2 | INTC | Intel Designs and manufactures CPUs, chips and offers foundry services | +9.05% | Rallied on a reported CPU price hike plus optimism around an Nvidia equity stake and a ~$20B capital raise funding its AI and foundry pivot; analyst sentiment turned positive. |
| 3 | HPE | Hewlett Packard Enterprise Enterprise servers, AI networking gear and cloud infrastructure | +7.75% | Optimism on AI-networking demand; rode the broad AI-infrastructure rally. |
| 4 | GLW | Corning Specialty glass, optical fiber and display and optical-communications materials | +7.56% | AI-infrastructure partnership news (Qualcomm/Corning) drove expectations for optical-fiber demand. |
| 5 | COHR | Coherent Lasers, optical-communications components and semiconductor materials | +7.10% | Part of the same AI optical-networking rally as Lumentum; the group moved up together. |
| 6 | STX | Seagate Technology Hard-disk drives and data-center storage systems | +6.49% | Read-through from AI data-center storage demand; rose with the AI-infrastructure complex. |
| 7 | CIEN | Ciena Optical transport and networking systems and software | +6.32% | Lifted by the optical-transport / AI-networking theme running through the group. |
| 8 | AMD | Advanced Micro Devices Designs CPUs, GPUs and AI data-center accelerators | +5.90% | Broad chip strength on the AI trade, with Intel's news helping lift the whole semiconductor space. |
| 9 | TPL | Texas Pacific Land Owns Permian Basin land and collects oil-and-gas royalties | +5.37% | Likely tied to the day's ~1.9% jump in crude on Middle East tensions; no standalone company catalyst was found. |
| 10 | FCX | Freeport-McMoRan Global copper miner, also producing gold and molybdenum | +5.35% | Copper hit a record (~$14,694/ton), lifting the earnings outlook for the miner. |
- 1. LITE+11.04%LumentumData-center optical modules, pump lasers and optical-communications componentsSharp rally across the AI optical-networking group, sparked by AI-infrastructure deal news from Qualcomm and Corning that lifted optical-module names broadly.
- 2. INTC+9.05%IntelDesigns and manufactures CPUs, chips and offers foundry servicesRallied on a reported CPU price hike plus optimism around an Nvidia equity stake and a ~$20B capital raise funding its AI and foundry pivot; analyst sentiment turned positive.
- 3. HPE+7.75%Hewlett Packard EnterpriseEnterprise servers, AI networking gear and cloud infrastructureOptimism on AI-networking demand; rode the broad AI-infrastructure rally.
- 4. GLW+7.56%CorningSpecialty glass, optical fiber and display and optical-communications materialsAI-infrastructure partnership news (Qualcomm/Corning) drove expectations for optical-fiber demand.
- 5. COHR+7.10%CoherentLasers, optical-communications components and semiconductor materialsPart of the same AI optical-networking rally as Lumentum; the group moved up together.
- 6. STX+6.49%Seagate TechnologyHard-disk drives and data-center storage systemsRead-through from AI data-center storage demand; rose with the AI-infrastructure complex.
- 7. CIEN+6.32%CienaOptical transport and networking systems and softwareLifted by the optical-transport / AI-networking theme running through the group.
- 8. AMD+5.90%Advanced Micro DevicesDesigns CPUs, GPUs and AI data-center acceleratorsBroad chip strength on the AI trade, with Intel's news helping lift the whole semiconductor space.
- 9. TPL+5.37%Texas Pacific LandOwns Permian Basin land and collects oil-and-gas royaltiesLikely tied to the day's ~1.9% jump in crude on Middle East tensions; no standalone company catalyst was found.
- 10. FCX+5.35%Freeport-McMoRanGlobal copper miner, also producing gold and molybdenumCopper hit a record (~$14,694/ton), lifting the earnings outlook for the miner.
Common Themes
The gainers were dominated by the AI-infrastructure complex: optical networking (LITE, GLW, COHR, CIEN) plus compute/storage (HPE, STX) and semiconductors (INTC, AMD) took nearly the entire top eight. The trigger was AI-infrastructure deal news from Qualcomm and Corning together with Intel's capital raise and reported Nvidia stake. A separate small commodities pocket (FCX on record copper, TPL on the oil spike) rode the day's commodity strength.
Top 10 losers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | HWM | Howmet Aerospace Makes jet-engine turbine castings and aerospace fasteners | -10.70% | Fell after SpaceX said it would build its own turbine castings, a vertical-integration threat; a GE Aerospace deal also weighed on sentiment. |
| 2 | AMGN | Amgen Develops and makes biopharmaceuticals across oncology, cardiovascular and other areas | -10.08% | A failed Novartis Lp(a) trial clouded the whole Lp(a)/cholesterol drug class (read-through to Amgen's olpasiran); BMO also downgraded the stock. |
| 3 | SYK | Stryker Makes orthopedic implants and surgical medical devices | -8.81% | Ongoing manufacturing/quality issues weighed, compounded by the broad healthcare-sector selloff. |
| 4 | GDDY | GoDaddy Domain registration, web hosting and small-business website tools | -8.32% | A Wells Fargo downgrade revived post-earnings concerns about customer acquisition. |
| 5 | EXPE | Expedia Group Operates online travel-booking platforms for flights and hotels | -7.88% | A weak revenue outlook plus Middle East conflict and travel-advisory fears hit travel names. |
| 6 | IT | Gartner IT research, advisory and industry-conference services | -7.42% | Continued fallout from a cut 2026 growth outlook and analyst pressure pushed the stock toward a 52-week low. |
| 7 | BKNG | Booking Holdings Operates online travel-booking platforms including Booking.com | -6.72% | Sold off with the travel sector alongside Expedia on Middle East / travel-advisory risk. |
| 8 | BSX | Boston Scientific Makes cardiovascular and interventional medical devices | -5.90% | A cyberattack/cyber incident hit the company and weighed on its guidance. |
| 9 | FIS | Fidelity National Information Services Banking and payments fintech software and processing services | -5.90% | Continued pressure from a guidance cut and cautious analyst commentary weighed on the fintech name. |
| 10 | STZ | Constellation Brands Produces and distributes beer, wine and spirits (Modelo, Corona) | -5.62% | Updated/cut its fiscal-2026 outlook, resetting guidance and targets. |
- 1. HWM-10.70%Howmet AerospaceMakes jet-engine turbine castings and aerospace fastenersFell after SpaceX said it would build its own turbine castings, a vertical-integration threat; a GE Aerospace deal also weighed on sentiment.
- 2. AMGN-10.08%AmgenDevelops and makes biopharmaceuticals across oncology, cardiovascular and other areasA failed Novartis Lp(a) trial clouded the whole Lp(a)/cholesterol drug class (read-through to Amgen's olpasiran); BMO also downgraded the stock.
- 3. SYK-8.81%StrykerMakes orthopedic implants and surgical medical devicesOngoing manufacturing/quality issues weighed, compounded by the broad healthcare-sector selloff.
- 4. GDDY-8.32%GoDaddyDomain registration, web hosting and small-business website toolsA Wells Fargo downgrade revived post-earnings concerns about customer acquisition.
- 5. EXPE-7.88%Expedia GroupOperates online travel-booking platforms for flights and hotelsA weak revenue outlook plus Middle East conflict and travel-advisory fears hit travel names.
- 6. IT-7.42%GartnerIT research, advisory and industry-conference servicesContinued fallout from a cut 2026 growth outlook and analyst pressure pushed the stock toward a 52-week low.
- 7. BKNG-6.72%Booking HoldingsOperates online travel-booking platforms including Booking.comSold off with the travel sector alongside Expedia on Middle East / travel-advisory risk.
- 8. BSX-5.90%Boston ScientificMakes cardiovascular and interventional medical devicesA cyberattack/cyber incident hit the company and weighed on its guidance.
- 9. FIS-5.90%Fidelity National Information ServicesBanking and payments fintech software and processing servicesContinued pressure from a guidance cut and cautious analyst commentary weighed on the fintech name.
- 10. STZ-5.62%Constellation BrandsProduces and distributes beer, wine and spirits (Modelo, Corona)Updated/cut its fiscal-2026 outlook, resetting guidance and targets.
Common Themes
Three threads ran through the losers. A healthcare/medtech cluster (AMGN, SYK, BSX) each had its own idiosyncratic catalyst — a drug-class trial read-through, manufacturing issues, and a cyberattack respectively — but healthcare was clearly the sector money fled. Travel (EXPE, BKNG) was hit by Expedia's weak outlook and Middle East / travel-advisory risk. And a cluster of names with weak guidance or downgrades (GDDY, IT, STZ, FIS) were punished for soft outlooks and analyst actions.
Overall read
A risk-off session driven by an oil-price spike, rate-hike fears and geopolitics. Money rotated out of healthcare, travel and soft-guidance names and into two themes: the AI-infrastructure complex (optical networking, semiconductors, storage) and commodity/energy-levered names (copper, oil royalties). The Nasdaq held roughly flat on chip and AI strength while the Dow took the biggest hit — sharp intra-market rotation under a modestly lower index.
Sources
- Yahoo Finance — S&P 500 quote
- Yahoo Finance — Stock market today, Sept. 8 2026
- CNBC — AI infrastructure stocks rally on Qualcomm, Corning deal
- Seeking Alpha — Lumentum jumps 11% amid AI optical-networking rally
- Yahoo Finance — Intel jumps 9% on chip price hike report
- Yahoo Finance — Amgen falls 10% as Novartis trial failure clouds cholesterol drug class
- TechEchelon — Howmet drops after SpaceX turbine-castings plan
- QuiverQuant — GoDaddy slides after Wells Fargo downgrade
- TIKR — Expedia drops on weak revenue forecast
- Investing.com — Boston Scientific cyber incident
- Investing.com — Freeport-McMoRan surges as copper hits record
- TIKR — Gartner plunges to 52-week low after guidance miss