At the close of October, the U.S. equity market experienced a pronounced reversal after a week dominated by central-bank rhetoric and a wave of technology-sector disappointments. The S&P 500 slipped 1.8% on Friday, settling at 7,580 – its steepest decline since June – while the nasdaq composite fell 2.9%, posting its worst day in months. The Dow Jones Industrial Average dropped 1.1% to 51,770. Defensive sectors such as health care and consumer staples proved more resilient, suggesting the sell-off was concentrated among the AI-heavy growth stocks rather than a broad economic retreat. Meanwhile, small-cap equities managed a weekly gain of 1.3%, underscoring the divergence between speculative tech names and more value-oriented assets.
Tech earnings trigger a market-wide retreat
Intel’s post-earnings outlook triggered a cascade of losses across the semiconductor space, with the chipmaker plunging almost 29% after projecting weaker-than-expected revenue. The drop rippled through peers, intensifying concerns that the massive capital outlays required for artificial intelligence infrastructure may not translate into near-term profitability. Alphabet and Amazon added to the unease; both reported robust cloud demand but highlighted escalating capex and cash-flow burdens tied to data-centre expansion. By contrast, Microsoft managed to showcase solid free-cash-flow growth alongside its Azure AI push, offering a rare example of immediate financial return from AI investment.
Investors, consequently, rewarded companies able to demonstrate tangible revenue and margin gains while penalizing those whose expense growth outpaced earnings. The result was a shift from a broad debate over AI spending to a more granular stock-selection focus, with market participants scrutinizing guidance and cash-generation metrics more closely than ever before.
Central banks signal a tighter monetary outlook
Across the Atlantic and beyond, policymakers continued to underscore the need for vigilance on inflation. The U.S. Federal Reserve kept its target range at 3.75-4.00% but saw two governors cast dissenting votes for a hike. Market pricing now reflects roughly an 85% probability of a December increase, and at least one Fed official hinted that two more moves may be required to anchor inflation expectations. Data released on Thursday showed the economy expanding at an annualised 3.4% in Q3, well above the 2.2% pace recorded in Q2, while the September PCE price index rose 3.6% year-over-year (3.1% on a core basis), still above the Fed’s 2% target.
In Europe, the European central bank left its deposit rate unchanged at 2.5% after the June and September hikes, yet inflation-adjusted growth of 0.4% in the eurozone fuels speculation of a December tightening. Meanwhile, Christine Lagarde announced an early departure slated for February, adding a layer of uncertainty to policy direction. The Bank of Japan held rates at 1.25% with a narrow 8-to-1 vote; one member advocated for a 1.5% level, and Governor Ueda signaled readiness for a December move if conditions warrant. The Bank of Canada broke a two-year streak of steady rates, raising its benchmark to 2.5%, marking its first hike since 2023.
Collectively, these actions illustrate a transition from the decade-long fire-starter approach to inflation toward a more cautious stance aimed at preventing a resurgence of price pressures while managing the impact of higher borrowing costs on growth.
Geopolitics, commodities and currency swings
The ongoing conflict between the United States and Iran, now in its ninth month, continues to curtail oil flows through the Strait of Hormuz, where traffic sits around 70% below pre-conflict levels. Recent attacks on tankers heighten supply-side concerns, keeping West Texas Intermediate near $104 per barrel and Brent crude around $118. Oil’s 15% rally in October bolsters energy stocks but also injects inflationary pressure into broader markets, complicating central-bank policy calibration.
Precious metals slipped further, with gold retreating to a one-year low near $3,885 an ounce – a 30% decline from its January peak – while silver fell roughly 9% to just under $50, pushing the gold-to-silver ratio to historic levels. These moves reflect market participants’ focus on interest-rate trajectories rather than outright risk aversion.
Currency markets displayed mixed signals: the euro weakened to about 1.1160 per dollar, the pound climbed modestly to 1.34, and the Canadian dollar fell below the 1.40 mark against the U.S. dollar. The Japanese yen remained under pressure, unable to sustain levels above 158 per dollar.
Looking ahead, investors will monitor upcoming earnings from Apple and AMD, which could signal whether consumer demand and broader chip-market dynamics can offset the AI-spending concerns that have rattled the market this week.
