US MARKET RECAP · SEP 25, 2026 (ET)
AI Catalysts and Easing Geopolitics Lift All Three Indexes
Dow +0.93% snaps a three-day slide, S&P 500 +0.51% notches an intraday record, Nasdaq +0.48%; Microsoft +3.66% on its Copilot overhaul; US-Iran talks ease oil; storage names bounce
US equities closed higher across the board on Friday, September 25. The Dow rose +0.93% (to 51,828.62), snapping a three-day losing streak; the S&P 500 gained +0.51% (to 7,743.41), notching an intraday record; and the Nasdaq Composite added +0.48% (to 27,068.72). Two catalysts drove the session: Microsoft's Copilot overhaul — unveiling Home, Code and Autopilot, what Satya Nadella called a "new OS for work" — lifted the stock 3.66% and dragged Qualcomm, Dell and other AI hardware higher; and advancing US-Iran talks, as Tehran submitted a new draft to reopen the Strait of Hormuz, easing oil prices and reviving risk appetite. The overhang remained: the 10-year Treasury yield touched 5.196% intraday (the highest since 2007) before easing to about 5.17%.
1. Indexes: All three rise, the Dow snaps a three-day slide
Dow Jones
51,828.62
▲ +0.93% +478.64 pts
S&P 500
7,743.41
▲ +0.51% +39.28 pts
Nasdaq
27,068.72
▲ +0.48% +129.34 pts
After a week of rate shocks and choppy rotation, Friday brought a broad rebound, with the Dow snapping a three-day decline. Gains were concentrated in mega-cap tech — the equal-weighted S&P and the Russell 2000 (+0.07%) clearly lagged, a sign that money was focused on AI-heavy index weights. For the week, the S&P rose 1.21% and the Nasdaq 2.06%, after the Nasdaq notched a record closing high on Tuesday.
2. Sectors: Eight up, three down — tech leads, energy lags
| Sector | Change | Driver |
|---|---|---|
| Information Technology | +0.99% | Microsoft's Copilot overhaul + AI hardware |
| Industrials | +0.94% | AI capex lifting capital-goods orders |
| Financials | +0.53% | Reviving risk appetite, banks higher |
| Consumer Staples | +0.51% | Defensive inflows |
| Health Care | +0.49% | Biotech strength led by Moderna |
| Real Estate | -0.35% | Pressured by elevated long-end yields |
| Communication Services | -0.65% | Dragged by Meta's 3.33% drop |
| Energy | -0.87% | Oil pullback on easing US-Iran tensions |
Utilities (+0.39%), materials (+0.29%) and consumer discretionary (+0.05%), not shown, all closed modestly higher. The session's signature was "tech leads, energy lags" — the mirror image of the "risk-off" pattern of prior days.
3. Mega-cap tech: Microsoft rallies, Meta fades
| Name | Close | Change | Note |
|---|---|---|---|
| Microsoft | 516.17 | +3.66% | Rebuilt Copilot around Home/Code/Autopilot — a "new OS for work" |
| Apple | 341.07 | +1.53% | Gained against the tape on AI spillover |
| Alphabet-A | 343.92 | +0.46% | Modest gain |
| Nvidia | 225.07 | +0.22% | AI chip bellwether, steadied |
| Amazon | 249.67 | +0.12% | Flat |
| Tesla | 372.11 | -1.54% | Fell against the tape, EV names soft |
| Meta | 751.66 | -3.33% | Profit-taking after the Muse agent's ~13% weekly run |
Microsoft was the day's biggest contributor — its rebuilt Copilot, pitched as a "new OS for work," sent the stock up 3.66% and lifted its 2026 gain back to about 7%. Meta was the mirror case: after the Muse AI agent and its Charm hardware drove a roughly 13% weekly surge, the stock gave back 3.33% on Friday — a classic "sell the news."
4. Semis & storage: SOX rebounds, storage names recover
The Philadelphia Semiconductor Index rose +1.41% (to 12,668.93, +176.39 points), with most constituents higher. The prior day's laggard storage names bounced.
| Name | Close | Change | Note |
|---|---|---|---|
| Qualcomm | 201.97 | +3.97% | Edge chips, AI sentiment (+5.1% intraday) |
| Broadcom | 352.81 | +0.70% | ASIC / networking, firmed with the group |
| AMD | 630.63 | +0.22% | Server CPU+GPU, modest gain |
| TSMC | 450.61 | -0.12% | Foundry leader, roughly flat |
| Intel | 123.00 | -3.45% | Lagging, gave back the prior day's surge |
Memory / storage (broad rebound)
| Name | Close | Change | Note |
|---|---|---|---|
| SK Hynix ADR | 181.56 | +2.78% | HBM leader, topped the storage group |
| Western Digital | 456.81 | +1.44% | HDD / flash, rebounded |
| SanDisk | 1,777.80 | +1.38% | NAND leader, rebounded |
| Arm | 310.32 | +1.30% | CPU IP, bounced after a 7.88% slide |
| Micron | 1,082.28 | +0.16% | DRAM / HBM leader, roughly flat |
The storage complex flipped from the prior day's broad decline to broad gains — SK Hynix, Western Digital, SanDisk and Arm all closed higher — confirming the earlier slide was technical profit-taking rather than a fundamental turn.
5. China ADRs: lagging, Golden Dragon -0.67%
| Name | Close | Change | Note |
|---|---|---|---|
| Bilibili | 14.90 | +0.61% | Video platform, modest gain |
| Alibaba | 109.74 | -0.80% | E-commerce leader, tracked lower |
| PDD | 77.57 | -0.81% | E-commerce, edged down |
| Baidu | 87.33 | -0.85% | AI / search, lower |
| JD.com | 26.51 | -0.90% | E-commerce, lower |
| NIO | 3.58 | -1.38% | EV maker, among the biggest laggards |
China ADRs lacked a standalone catalyst and tracked the Golden Dragon Index lower. The same day, Xi Jinping and Donald Trump held a "very productive" meeting, but the market read it as personal diplomacy rather than an economic breakthrough, so ADRs got little lift.
6. Key events of the session
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Microsoft rebuilds Copilot as a "new OS for work"It unveiled Home, Code and Autopilot, unifying consumer and workplace AI assistants into a corporate product. The stock rose 3.66%, lifting its 2026 gain back to about 7%.
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US-Iran talks advance, oil pulls backForeign Minister Araghchi confirmed Tehran had submitted a new draft to reopen the Strait of Hormuz; Reuters reported the sides were exploring a phased deal. WTI eased about 2.3% toward 92 dollars, reviving risk appetite.
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Akamai signs an $11.6 billion deal with AnthropicAkamai expanded its partnership with AI leader Anthropic into a seven-year, $11.6 billion cloud commitment (with warrants for up to 5% equity), surging as much as 16% intraday and closing up about 7.3%.
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Trump calls the Xi meeting "very productive"The three-day summit concluded with personal diplomacy rather than economic breakthroughs; Trump made clear to Beijing that aid to Iran was "unacceptable." Market sentiment leaned positive.
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10-year yield hits a 19-year high of 5.196% before easingLong-end yields extended to fresh highs and weighed on valuations before retreating with oil, closing around 5.17% (-1bp on the official curve).
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Cybersecurity names slump, Zscaler down 10.06%Zscaler's appointment of a new chief revenue officer rattled the group; Palo Alto and CrowdStrike fell 2.9% to 6.7% alongside it.
7. Cross-asset
| Asset | Close | Change |
|---|---|---|
| WTI Crude (Nov) | 92.26 USD/bbl | -2.48% |
| Brent Crude (Nov) | 104.25 USD/bbl | -2.20% |
| COMEX Gold (Dec) | 4,324.20 USD/oz | +0.61% |
| COMEX Silver (Dec) | 64.82 USD/oz | +1.28% |
| US Dollar Index | 101.02 | -0.26% |
| 10-Year Treasury Yield | 5.17% | -1bp |
The cross-asset mix was "oil down, gold slightly up, dollar softer, equities up": US-Iran progress pressured oil and lifted risk appetite; the 10-year yield, despite an intraday 19-year high, eased into the close and did not cap tech. CME odds of an October hike stood near 66%. Oil prices use contract-month basis (November WTI / November Brent).
8. Takeaways
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AI sentiment re-ignited by Microsoft, but dispersion is wideningMicrosoft's Copilot overhaul was the day's strongest catalyst, yet Meta fell 3.33% on "sell the news" — the AI complex is shifting from a broad rally to stock-by-stock catalyst pricing, making selection matter more than direction.
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Rates remain the sword overhead, but the margin is easingThe 10-year hit a 19-year high of 5.196% before easing, and softer oil relieved inflation pressure; hike odds rose to 66% but stopped deteriorating. Watch next week's PCE for a repricing of the hike path.
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Geopolitics was the week's biggest sentiment swingUS-Iran progress directly compressed oil and lifted risk appetite. Whether the Strait of Hormuz reopens is the key to oil and inflation expectations next week, and the implicit condition for tech's rally to hold.
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Storage's whipsaw shows money never leftThe prior day's laggard storage names bounced together (SK Hynix +2.78%), confirming technical profit-taking rather than a fundamental reversal — the AI-hardware demand narrative remains intact.