Big Tech’s US$750 billion AI bet collides with slowing growth in core businesses
Big Tech companies like Alphabet, Amazon, Microsoft, and Meta are investing heavily in AI (US$750B by 2026) while their core businesses slow. Alphabet's ad sales grew at the slowest pace in 5 quarters, and Amazon's e-commerce and ad growth slowed. Despite this, they maintained high capital spending outlooks. Shares fell, with Alphabet losing US$500B in market value. Cloud computing was a bright spot for both Amazon and Google, but AI integration is hurting Google Search's profitability.
How this was made
The 30-second read
Why it matters
The earnings releases collectively signal a near‑term earnings drag for the sector, despite continued AI investment.
Market read
The earnings news creates short‑term downside risk for the major U.S. tech stocks and may temper broader AI‑related market enthusiasm.
What to watch
Strong cloud growth at Google and Microsoft may offset ad slowdown, supporting longer‑term earnings.
Background
The article reviews Q3 2026 earnings of the four U.S. tech giants, highlighting slowing growth in core ad and e‑commerce businesses amid massive AI cap‑ex.
Ticker impact
Alphabet reported its ad sales grew at the slowest pace in five quarters, causing its shares to plunge and wipe out nearly $500 billion in market value.
likely downside as investors price in weaker ad growth and higher AI spending.
The earnings release disclosed a material slowdown in a core revenue line, triggering a sharp sell‑off.
Amazon said growth in its e‑commerce and advertising businesses slowed, with advertising up 11% (slowest since 2022) and online stores up 2%, while its stock fell 7% in late trading.
likely downside as the market digests weaker top‑line growth and high cap‑ex commitments.
The earnings report highlighted a slowdown in core segments, a fresh catalyst for the stock move.
Microsoft posted strong cloud growth but its shares erased gains and closed down 0.2% after earnings, reflecting investor concerns over overall AI spending.
slight downside or flat as investors weigh cloud growth against broader AI cost concerns.
Earnings were mixed; cloud beat but overall sentiment was negative, limiting upside.
Meta fell 10% after reporting earnings, noting aggressive AI investment and a computing‑intensive AI app (Muse) that pressures margins.
downward pressure as investors worry about AI spend outweighing near‑term returns.
The earnings release directly linked AI spending to a sharp stock drop, a clear trading signal.
Market effects
Slower growth in advertising and e‑commerce may temper enthusiasm for AI‑driven spend across the tech sector.
U.S. large‑cap tech indices could see modest pullback as the four giants underperform.
Potential ripple to global AI supply chains and cloud service providers.
Counterpoint
Investors could view the AI spend as a long‑term growth catalyst, buying on dip.
Key entities
- CompanyAlphabet
Parent of Google, reporting ad slowdown.
- CompanyAmazon
E‑commerce and advertising growth decelerating.
- CompanyMicrosoft
Strong cloud growth but overall AI spend concerns.
- CompanyMeta Platforms
Aggressive AI investment leading to margin pressure.
