The explosive rally in AI stocks is creating a market risk that has no historical playbook, warns Stefan Hoops, CEO of DWS (≈ €1.1 trillion AUM).
Unlike the dotcom bubble, this time it’s retail investors, not institutions, driving much of the AI frenzy – and their behaviour in a real downturn is still untested.
⚠️ Concentration & Valuation Risk
- The “Magnificent Seven” – including Nvidia and Meta – have carried a huge share of market returns.
- AI-related stocks have contributed around 75% of S&P 500 gains since ChatGPT launched.
- U.S. retail investors’ equity exposure is at its highest level in ~75 years.
Hoops poses a simple but sharp question:
“Nvidia is now worth $5 trillion. Could it go to $100 trillion – or will someone be first to say ‘this is getting shaky’?”
🧠 Retail vs Institutional Mindset
- Institutions still look at traditional valuation metrics.
- Many retail investors focus on momentum and “buy the dip”, not fundamentals.
- The big unknown: What happens when prices fall and stay down?
🌐 DWS View: Long-Term AI, Short-Term Caution
- DWS still “loves” data centers as an AI infrastructure play and is investing in built assets.
- At the same time, they’re exiting mature positions (like NorthC) and reassessing where risk is building.
- Hoops also highlights that some global investors are diversifying away from the U.S., but Europe still needs bolder reforms to unlock growth.
Key Takeaways for Investors
- AI is real, transformative – but price ≠ value in the short term.
- Retail-driven rallies can unwind faster and more violently.
- Infrastructure (data centers, energy, chips) may be more resilient than pure “AI narrative” trades.
- Risk management now is less about if AI wins, and more about how much you’re paying for that future.