Data center / AI-infrastructure stocks are falling today because the market is suddenly questioning whether the AI build‑out will earn its cost of capital, after a one‑two punch from Oracle and Broadcom plus new “AI bubble” warnings from Wall Street.cnbc+2
Immediate triggers
Oracle (ORCL) & Broadcom (AVGO) shocks: ORCL’s weak revenue, soaring AI data‑center capex, and OpenAI‑related delay headlines, combined with AVGO’s strong AI sales but margin pressure, reignited fears that AI infra spending is outrunning monetization.investing+2
AI trade de‑risking: Broadcom’s 10–11% drop led a broader AI/semis selloff; Nvidia, AMD and AI‑exposed names all slid, dragging the Philadelphia Semiconductor Index down ~5% and hitting data‑center builders and tenants.reuters+2
Structural worries hitting data-center names
Bubble / ROI fears: Goldman Sachs and others warn the AI data‑center boom could “end badly” if AI apps can’t be monetized (e.g., users balk at paying for Copilot‑like tools), leaving overbuilt capacity and weak lease rates.theregister+2
Tenant risk: Reuters notes that if key AI/cloud tenants (hyperscalers or GPU clouds like CoreWeave) slow or cut back, data‑center operators’ expected returns on massive capex get squeezed—investors are now pricing in that risk.reuters+1
Net: stocks tied to AI data centers are selling off because the market is rotating out of the “AI at any price” trade into a “show me the sustainable profits from all these bit barns” regime, and ORCL/AVGO just provided the first hard datapoints to justify that skepticism.fortune+2
That said, hyperscalers and big tech are in an AI arms race very similar to Amazon’s “loss‑leader to pole position” strategy in the late 1990s. They’re deliberately front‑loading capex because whoever owns the most capable AI infra and data flywheel will own outsized economics later.Thursday's MU earnings report is important. MU is in a structurally better spot than ORCL/AVGO on monetizing its spending because of how its spending maps to demand. Micron is on the component side (DRAM/HBM) rather than running AI clouds itself, so its capex is capacity/tech investment tied directly to visible pricing and bit demand, not speculative platforms.
So unlike Oracle:
Micron’s AI‑driven capex is directly monetized through higher ASPs and utilization in a tight market (HBM shortages, AI servers needing huge memory per GPU).
Free cash flow is expected to be positive in FY25 with record revenue, not swinging to a large deficit.
- https://www.cnbc.com/2025/12/15/cnbc-daily-open-us-stocks-retreat-from-highs-as-broadcom-leads-tech-sell-off.html
- https://www.bloomberg.com/news/articles/2025-12-12/ai-stocks-get-pummeled-as-oracle-delay-adds-to-broadcom-concerns
- https://longbridge.com/en/news/269536444
- https://www.investing.com/news/stock-market-news/oracle-stock-falls-as-openai-data-center-completion-pushed-to-2028-4406331
- https://www.cnbc.com/2025/12/12/broadcom-tumbles-10percent-after-earnings-as-ai-trade-sells-off-.html
- https://www.reuters.com/business/finance/oracles-stumble-hits-ai-trade-many-remain-bullish-2025-12-12/
- https://www.reuters.com/business/nasdaq-sp-500-futures-slip-broadcom-outlook-reignites-ai-bubble-fears-2025-12-12/
- https://www.theregister.com/2025/12/12/ai_datacenter_investments_goldman/
- https://www.theregister.com/2025/09/02/goldman_sachs_ai_datacenters/
- https://www.reuters.com/commentary/breakingviews/shaky-data-centre-tenants-could-choke-off-ai-boom-2025-12-10/
- https://www.reuters.com/business/nvidia-backed-coreweaves-shares-fall-data-center-delay-hits-annual-revenue-2025-11-11/
- https://fortune.com/2025/12/13/stock-market-rotation-outlook-ai-trade-mid-small-cap-stocks/
- https://www.reddit.com/r/ValueInvesting/comments/1plplsu/ai_hype_is_cooling_fast_oracle_and_broadcom/
- https://www.technologyreview.com/2025/12/15/1129183/what-even-is-the-ai-bubble/
- https://finance.yahoo.com/news/wall-street-sees-ai-bubble-140000205.html
- https://www.nasdaq.com/articles/down-50-its-all-time-high-should-you-buy-coreweave-2025-over
- https://www.marketscreener.com/news/the-christmas-stock-market-rally-is-long-overdue-ce7d50d8d088f121
- https://www.cnbc.com/2025/12/15/cnbc-daily-open-investors-sell-off-tech-despite-steady-broadcom-numbers.html
- https://www.itpro.com/infrastructure/data-centres/can-data-center-supply-keep-up-with-ai-demand
- https://www.theglobeandmail.com/investing/markets/markets-news/Motley%20Fool/36625068/523-billion-reasons-to-buy-oracle-stock-in-december/