Hawkish Hike: Oil Spikes, AI Steadies Markets

For the week of Sep 18, global equities traded with a cautious, headline-driven tone as the Federal Reserve delivered its first interest-rate increase since 2023 and a Middle East flare-up whipsawed oil prices. In the U.S., a modestly hawkish hike and a late pullback in crude left the major benchmarks mixed, with artificial-intelligence names cushioning the technology complex. In China and Hong Kong, a Friday technology-led rebound rescued mainland shares even as soft domestic demand and credit data kept sentiment fragile. In Singapore, a historic surge in AI-driven non-oil exports underpinned the macro backdrop, though the Straits Times Index slipped as index heavyweights sold off.

(Refer to the major indices' weekly performance tables below.)

🇺🇸 United States

Market Overview

The major U.S. indexes finished mixed in a week dominated by the Fed's rate decision and volatile oil prices. The technology-heavy Nasdaq Composite (COMP) outperformed with a +0.72% gain as AI-related shares shrugged off weekend safety warnings, while the S&P 500 (SPX) was essentially flat at -0.08% and the Dow Jones Industrial Average (DJI) lagged, falling -1.69%. Growth outpaced value across the large-cap universe, and small-caps trailed.

Index Weekly Performance

-  Dow Jones Industrial Average (DJI):  -1.69%

-  S&P 500 (SPX):  -0.08%

-  Nasdaq Composite (COMP):  +0.72%

Key Highlights and Outlook

1️⃣ Fed Delivers First Rate Hike Since 2023

The FOMC raised the federal funds target range by 25 bps to 3.75%-4.00% on Wednesday, a widely expected move that drew no dissents - a surprise, as many observers had looked for one or two doves favouring a hold. The Summary of Economic Projections penciled in one further 25 bps hike by end-2026, signalling a firmly inflation-focused stance.

2️⃣ Treasury Yields Whip Around the Decision

The 10-year Treasury yield touched 5.04% earlier in the week, its highest since 2007, before easing to 4.94% on Thursday as investors gained confidence in the Fed's inflation-fighting credibility, then ticking higher again on Friday. Shorter-dated yields, most sensitive to the policy path, firmed as markets read the message as modestly more hawkish than expected.

3️⃣ Oil Spike Fades on Pipeline Reassessment

Crude jumped early in the week after attacks on Saudi pipeline infrastructure, and record U.S. diesel prices stoked inflation fears that the hike only partly assuaged. West Texas Intermediate then fell over 3% on Wednesday - its steepest daily drop in six weeks - after reports suggested the pipeline damage was less severe than first feared.

4️⃣ AI Complex Recovers From Safety Jitters

After Anthropic CEO Dario Amodei urged slower development of frontier models on Sept 12 - a call soon echoed by OpenAI's Sam Altman and xAI's Elon Musk - AI-linked semiconductors, memory and energy names sold off on Monday. Supportive comments from NVIDIA CEO Jensen Huang steadied the group on Tuesday, and it regained ground into week's end.

5️⃣ Credit Favours Quality Over High Yield

Investment-grade corporates outperformed Treasuries for most of the week and rallied after the hike, with new issues generally oversubscribed on strong underlying demand. High-yield stayed under pressure as rising Treasury yields, oil-driven inflation concerns and expectations for further tightening heightened stress on lower-quality credit.

6️⃣ Earnings Strength Underpins the Outlook

Beneath the rate noise, the earnings backdrop stayed supportive: S&P 500 and mid-cap profit growth is expected to hold near the 20% range in the quarters ahead, and August retail sales beat despite elevated oil and inflation. Resilient consumption and broadening earnings could make any market advance less reliant on a handful of mega-caps.

S&P 500 Sectors in Focus

Sector performance tilted toward defensives and secular growth over cyclicals. Health Care led the tape and Technology was the only other sector to advance as the AI trade steadied, with semiconductor and precious-metals miners among the strongest sub-groups. At the bottom, Utilities fell hardest on the back-up in yields, followed by Financials - where rate-sensitive banks stabilised only after a sharp mid-week sell-off - and Real Estate. The split underscored a market rewarding defensive and secular-growth earnings while punishing its most rate-exposed corners. (Refer to the SPX sector ETF weekly performance table below.)

Technical Snapshot

The SPX held its recent range, closing marginally lower but comfortably above near-term support 7600 level as the flat weekly print masked sizeable intraday swings around the Fed. The Nasdaq's relative strength kept it near cycle highs within its 7-week consolidation range, while the DJI's slide left it lagging and testing the lower half of its recent band. On the charts, SPX and Nasdaq remain in sideways-to-higher consolidation with uptrends intact, whereas the DJI is consolidating lower - a divergence worth watching should yields resume their climb.

📊 Weekly charts:

-  DJI weekly chart

-  SPX weekly chart

-  Nasdaq weekly chart

 

🇨🇳 China / Hong Kong

Market Overview

China equities were mixed as mainland shares outperformed Hong Kong on a technology-led rebound into Friday. The CSI 300 edged down 0.06% and the Hang Seng Index (HSI) slipped 0.22%, while the Shanghai Composite (SSE) rose 0.61% in local-currency terms. Early weakness in AI and other growth names - amid a regional tech sell-off, higher oil and softer domestic data - gave way late in the week as semiconductors rebounded sharply and the renminbi firmed to a multi-year high. (Refer to the major indices' weekly performance tables above.)

Index Weekly Performance

-  CSI 300:  -0.06%

-  Shanghai Composite (SSE):  +0.61%

-  Hang Seng Index (HSI):  -0.22%

Key Highlights and Outlook

1️⃣ Friday Tech Rebound Rescues the Week

A sharp Friday recovery in semiconductors and AI-related names broadened across mainland and Hong Kong boards, narrowing losses that had built earlier in the week. The renminbi strengthened to its firmest level in more than four years, a supportive backdrop that helped growth stocks claw back lost ground.

2️⃣ Industrial Output Firm, Demand Still Soft

August data underscored a widening divide: industrial production rose 5.2% year over year, ahead of expectations and up from July's 4.5%, powered by higher-value-added manufacturing. Retail sales, by contrast, grew just 0.4%, slowing from 0.6%, while fixed-asset investment fell 7.2% and property investment dropped 19.9% in the first eight months.

3️⃣ Credit Data Reinforces the Divide

Banks extended only RMB 60 billion of new loans in August, far below the RMB 400 billion consensus, and household borrowing contracted for a sixth straight month. Total social financing growth eased to 7.2% year over year from 7.4%, keeping the contrast between resilient technology manufacturing and weak consumption and property firmly in view.

4️⃣ Hong Kong Five-Year Plan Signals a Pivot

Hong Kong's inaugural 2026-2030 plan points to a policy shift away from property-led growth toward offshore renminbi finance, commodities infrastructure and technology capacity, per Maybank Securities. The read-through favours financial-plumbing and select strategic-infrastructure plays over generic local property exposure.

Technical Snapshot

The HSI closed marginally lower on the week but held above its recent consolidation floor, with Friday's rebound repairing some of the mid-week damage. The index remains range-bound below its year-to-date pivot, and breadth stayed uneven - a heavy tail of energy and consumer decliners offset a firm technology and biotech bid. A decisive move now hinges on whether Friday's tech recovery can extend or fades as oil and demand concerns linger.

HSI Constituents in Focus

Weekly Gainers.  Lenovo topped the index with a spectacular +20.06% surge on AI-PC and hardware momentum, while the healthcare and biotech cohort ran hot - WuXi Bio (+7.13%), WuXi AppTec (+5.93%), Hansoh (+4.83%), JD Health (+4.43%) and Sino Biopharm (+4.19%) all rallied. Chip bellwether SMIC (+3.17%) and Trip.com (+4.45%) rounded out a growth-led leaderboard. (Refer to the Hang Seng Index constituents' weekly performance table below.)

Weekly Decliners.  The losers skewed toward energy and old-economy cyclicals as oil retreated: Sinopec (-5.55%), PetroChina (-4.91%) and China Shenhua (-3.60%) all fell. Macau gaming lagged, with Sands China (-8.38%) the single worst constituent, while consumer names Haidilao (-5.52%) and Chow Tai Fook (-5.31%) echoed the soft domestic-demand signal. (Refer to the Hang Seng Index constituents' weekly performance table below.)

📊 Weekly charts:

-  SSE weekly chart

-  HSI weekly chart

 

🇸🇬 Singapore

Market Overview

Singapore's Straits Times Index (STI) eased 0.70% to close the week at 5,656.11, trimming but preserving a strong year-to-date advance of +21.74%. The decline was concentrated in a handful of index heavyweights rather than a broad retreat, as the large bank components finished roughly flat. Underpinning the tape, a record surge in non-oil domestic exports reinforced Singapore's increasingly AI-driven growth story.

Index Weekly Performance

-  Straits Times Index (STI):  -0.70%

Key Highlights and Outlook

1️⃣ NODX Posts Fastest Growth Since 1988

Non-oil domestic exports surged 46.2% year over year in August - up sharply from July's 24.1% and the fastest since 1988 - with electronic shipments jumping roughly 132%. Exports to the U.S. (+91.0%) and China (+70.3%) led the gains, pointing to an AI-driven investment cycle rather than a broad-based recovery in consumer demand.

2️⃣ Analysts Lift Export and Rate Forecasts

The blowout print prompted upgrades: Maybank Securities reiterated its +5.2% full-year GDP call and raised its end-2026 3M SORA forecast to 1.6% (from 1.2%), while CGS International lifted its 2026 NODX growth outlook to 25.0% from 16.0%. Firmer local rate expectations dovetailed with the Fed's hawkish turn.

3️⃣ Index Drag From SGX and DFI Retail

The STI's slip owed to sharp falls in a few names: DFI Retail (-10.86%) and the stock exchange SGX (-8.64%) were the biggest drags, with Keppel (-3.50%) and Singtel (-3.33%) also weak. Gains in Yangzijiang Shipbuilding (+3.82%), ST Engineering (+1.86%) and UOB (+1.26%) cushioned the fall.

4️⃣ City Developments Sets Strategic-Review Date

City Developments said it will release the outcome of its strategic review on Sept 28, sending shares up as much as 4.3% intraday. UOB Kay Hian expects the review could include portfolio optimisation and monetisation of low-yielding UK and China assets - a potential near-term catalyst for the property counter.

Technical Snapshot

The STI's 0.70% dip barely dented an uptrend that has delivered a +21.74% year-to-date return, leaving the index consolidating just below its recent highs. Support held as roughly flat bank heavyweights offset the sell-off in DFI Retail and SGX, keeping the broader structure constructive. With the AI-export tailwind intact and local rate expectations firming, the near-term bias stays sideways-to-higher pending fresh catalysts. (Refer to the STI weekly performance table below.)

📊 Weekly charts:

-  STI weekly chart

 

📅 Week Ahead (21-25 Sep 2026)

The U.S. calendar centres on the August PCE report - the Fed's preferred inflation gauge, due late in the week - alongside the final Q2 GDP estimate, durable-goods orders and weekly jobless claims. With no FOMC meeting until Dec 8-9, a heavy slate of Fed speakers will be parsed for how firmly the one-more-hike path is held. Oil and Middle East headlines remain the key swing factor for yields and risk appetite.

China's loan prime rate fixing opens the week, testing whether banks pass on any further easing amid soft credit and property data. Investors will watch whether Friday's technology-led rebound and renminbi strength can extend, and gauge early positioning around Hong Kong's new 2026-2030 Five-Year Plan priorities in offshore RMB finance and technology.

In Singapore, August CPI mid-week and industrial production at week's end will show whether the export boom is broadening beyond electronics. Regionally, ASEAN currencies face mild depreciation pressure after the Fed's hike, and City Developments' strategic-review outcome on Sept 28 looms as a near-term catalyst.

🗓️ Overarching Watchpoint

The single biggest binary risk is oil. Crude's mid-week reversal on softer Saudi pipeline damage did much to calm the inflation scare - but any renewed Middle East escalation that re-spikes prices would revive the very inflation fears the Fed's hike only partly assuaged, pushing Treasury yields back toward 5% and pressuring rate-sensitive equities worldwide.

 

Source: Some content and data are excerpted from publicly available market reports.

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