Alphabet Earnings Miss Triggers AI Sell-Off as Microsoft Beats Expectations
US stock futures fell on Thursday as Alphabet reported a revenue miss and weak free cash flow, sparking a sell-off in AI and semiconductor stocks. Microsoft, conversely, beat expectations with strong Azure growth and lower capex guidance, causing a divergence in the 'Magnificent Seven.'
Key points
- Alphabet shares fell over 10% in premarket trading after a double miss on EPS and revenue, with concerns over AI return on investment and free cash flow.
- Microsoft shares rose after beating expectations, driven by 48% Azure growth and a reduced full-year capex guidance of $170 billion, which negatively impacted neocloud stocks like Coreweave.
- Nasdaq-100 futures fell 1.2% and the S&P 500 futures slid 0.4% as investors digested the Federal Reserve's rate pause and mixed tech earnings.
- Amazon is set to report earnings after the bell, with analysts expecting continued negative free cash flow despite strong cloud growth.
- Cybersecurity stocks, including Fortinet and ServiceNow, tumbled following earnings reports that missed margin expectations.
Background
This volatility follows a period of mixed market performance in October 2026, where tech and AI names saw a rebound on October 20 after earlier concerns over AI revenue. The current sell-off marks a sharp reversal from the AI rally seen in late September, highlighting investor sensitivity to capex and ROI in the AI sector.
How outlets are covering it
Yahoo Finance emphasizes the broad market impact of Alphabet's miss and AI jitters, noting the sell-off spread to Asian markets and chip stocks. CNBC highlights the stark contrast between Alphabet and Microsoft, noting that Microsoft's lower capex guidance hurt neocloud firms like Coreweave and Nebius. The New York Times frames the event as a split in investor sentiment toward AI spending, with Microsoft's strategy being cheered while Alphabet's lavish spending is criticized. All three outlets agree on the negative impact of Alphabet's earnings but differ in their emphasis on the broader AI trade and specific sector impacts.
Why it matters
The divergence between Alphabet and Microsoft signals a shift in investor priorities from growth at all costs to profitability and ROI in AI. This could impact the valuation of other tech giants and the broader AI infrastructure build-out, as investors become more discerning about capex and returns.
What to watch
Investors will watch Amazon's after-bell earnings report, as well as the performance of cybersecurity and semiconductor stocks. The Federal Reserve's rate pause and the upcoming PCE price index data will also influence market sentiment. Additionally, the potential merger between Marvell and Lumentum could impact the AI chip sector.
- Stock market today: Dow, S&P 500, Nasdaq futures fall as Alphabet stock sells off, AI jitters return Yahoo Finance
- Alphabet drags on Nasdaq futures as the stock faces a record post-earnings loss CNBC
- Stock Market Today: Nasdaq Futures Slump After Google Earnings Disappoint — Live Updates WSJ
- Alphabet stock sinks as search woes cause revenue miss, cash burn worsens Reuters
- Microsoft Up, Google Down. A Tale of Two Hyperscalers. The New York Times
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