The AI-driven market frenzy faced a brutal "reality check" on Friday as disappointing news from chip giant Broadcom and cloud services provider Oracle shattered overhyped expectations.
On December 12, a wave of selling swept through AI-related stocks. Broadcom's shares plunged as much as 12%, dragging the S&P 500 and Nasdaq Composite down over 1% each, completely reversing earlier weekly gains fueled by rate-cut optimism. Oracle extended its decline by more than 4%.
The sell-off quickly spread across the AI supply chain, with the Philadelphia Semiconductor Index plummeting 5%—its worst single-day performance in about two months. The downturn also hammered shares of companies ranging from Nvidia to cloud service provider CoreWeave.
Market panic rapidly intensified, with the "Magnificent Seven" tech stocks significantly underperforming the other 493 S&P 500 components. Crucially, the shockwaves extended beyond equities—bond traders also moved to reduce sector exposure. Data from MarketAxess showed Oracle's bond yield spreads widened sharply.
Two major triggers ignited the sell-off. First, chip designer Broadcom reported earnings after Thursday's close. Despite record sales, its AI revenue forecast fell short of Wall Street's sky-high expectations. Second, Oracle's disappointing earnings were compounded by reports that its OpenAI data center projects might face delays from 2027 to 2028, raising doubts about AI infrastructure timelines.
These chain reactions underscore how AI narratives now drive markets—enough to drag down major indices and force investors to question: How much patience remains for promised AI returns?
Broadcom's earnings miss set off cascading effects. Friday's market action provided a textbook case of high expectations colliding with reality. Though Broadcom posted record $18 billion sales and strong profit growth Thursday evening, investor focus quickly turned to concerns about its custom AI chip margins, timeline for OpenAI commitments, and post-2027 visibility. Unsatisfied answers sent shares down 11%, making it one of the S&P 500's worst performers and spreading contagion to other AI plays.
Oracle compounded the damage. Even before Broadcom's report, the database giant had unsettled markets with earnings that missed revenue estimates while exceeding capital expenditure projections. Bloomberg's subsequent data center delay report became the final straw—despite Oracle's denial that any contracted sites faced delays, shares fell 4.5% Friday, capping a 13% weekly drop. RBC analyst Rishi Jaluria noted, "Oracle's now seen as a bellwether—people are asking what this means for chips or power. The downstream implications are massive."
The sell-off rippled far beyond Broadcom and Oracle. Nvidia, AI's biggest beneficiary and the world's most valuable company, fell 3.2%. Other chip firms like Astera Labs and Coherent dropped over 10%, while AI compute provider CoreWeave slid 10%. Even non-tech power-related stocks like Constellation Energy and Vistra declined.
Notably, bond markets felt the chill. Trading volumes surged for debt issued by "AI hyperscalers" including Oracle, Microsoft, and Meta. Oracle's 5.95% 2055 bonds saw yield spreads over Treasuries jump ~0.2 percentage points to 2.07 points.
This "AI reality check" starkly contrasts with earlier Fed-driven optimism. While rate-cut bets had recently boosted cyclical sectors like banks and materials, analysts see the swift reversal as proof of AI's market dominance. BOK Financial's Steve Wyett asked, "The big question becomes: How patient will markets be waiting for AI builders to deliver returns?"
Yet some investors view the anxiety differently. Edwards Asset Management's Robert Edwards considers current AI valuation and spending concerns a healthy caution signal—indicating remaining upside potential. He argues this "wall of worry" acts as a contrarian indicator: with $7.7 trillion in money market funds waiting on the sidelines, stocks could continue climbing.