A Chain-Reaction Sell-Off Triggered by Narrowing AI Capital Tolerance

Last week's global financial markets were firmly dominated by two intertwined themes: sticky U.S. inflation data driving up rate-hike expectations, and a severe crisis of confidence in the logic surrounding AI trades. High energy prices reinforced sticky inflation, forcing major central banks to maintain their hawkish stance. This interest rate environment, in turn, punctured the previously hyper-crowded AI tech trade and unexpectedly dragged gold—a traditional safe-haven asset—into the sell-off vortex. Crude oil, meanwhile, rallied independently amid geopolitical conflicts and supply concerns, emerging as the most resilient asset during this re-pricing process.

U.S. equities last week centered around a core skepticism: "Can AI capital expenditures deliver tangible returns?" Early in the week, the market managed to trade sideways under the support of Microsoft's strong earnings. However, Alphabet subsequently posted lower-than-expected Google Search revenue. A far more devastating blow came from Intel, whose fourth-quarter guidance fell drastically short of market expectations, causing its stock to plummet by nearly 30% in a single day—its largest single-day drop in decades—and sparking a full-blown sell-off in tech stocks. For the week, the Nasdaq fell 2%, bringing its October drop to 5.3%; the S&P 500 dipped 0.6% on the week and 0.9% for the month. Only the DJIA managed a modest 1.7% gain in October, supported by rotations into value and small-cap stocks. This extreme index divergence reveals a critical signal: capital is not leaving the market entirely, but is instead exiting high-valuation AI narratives and shifting into traditional value sectors and energy stocks that benefit from a high-rate environment. Intel's guidance nightmare was not an isolated event; it marks a sharp narrowing in market tolerance for "cost-is-no-object" AI infrastructure spending, where any evidence of underperforming monetization triggers a brutal valuation correction. With both Apple and AMD scheduled to report earnings this week, the Nasdaq's recent pullback may be far from over if their reports fail to offer sufficiently robust outlooks.

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The gold market got a brief respite early in the week as oil prices temporarily retreated, posting small gains for two consecutive trading sessions as the market briefly hoped gold could stabilize above the $4,000 level. However, a Wednesday attack on a Saudi refinery caused oil prices to rebound and reignited inflation fears, sending gold back into a decline. The real collapse occurred on Friday: as tech stocks faced fierce selling over AI monetization concerns, institutional investors were forced to liquidate profitable gold holdings to generate liquidity and cover equity margin calls. Spot gold plummeted 3.5% by the close of October 30, dropping to as low as $3,870 per ounce—its lowest level since October 2025. Furthermore, while the Federal Reserve held rates steady last week, several officials subsequently stated explicitly that inflation remains unacceptable, with Dallas Fed President Logan even suggesting at least two more rate hikes are needed. These hawkish Fed signals delivered a second blow to gold.

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Crude oil demonstrated remarkable resilience last week. Although prices retreated mid-week on news of diplomatic mediation, threat of maritime disruption in the Strait of Hormuz and attacks by Yemen's Houthi rebels on Saudi energy infrastructure quickly pushed risk premiums back to elevated levels. Oil's sustained high prices represent the central contradiction in the current macroeconomic dilemma. Persistently high energy prices directly drive up transportation and production costs, pushing the U.S. PCE price index to a 0.5% month-over-month increase in September—the largest monthly gain since March. This data directly bolstered market bets on a Fed rate hike in December. Even as a Qatari delegation headed to Tehran again to push for a resumption of U.S.-Iran negotiations, deep divisions between the two sides on core issues like uranium enrichment mean market skepticism over a short-term deal remains intact. The trajectory of the Iranian situation following this week's midterm elections will directly dictate oil price direction, warranting caution over high volatility risks.