On October 20, 2026, Citadel founder Ken Griffin stated that markets are likely in an AI bubble. He highlighted a disconnect between corporate spending on AI tools from providers like Anthropic and OpenAI and the actual productivity gains achieved by these businesses.
Deutsche Bank CEO Christian Sewing disagreed with this assessment on October 21, 2026. He attributed current market volatility and rising interest rates to geopolitical tensions rather than issues specific to the artificial intelligence sector.
Analysts at Deutsche Bank noted that while some private AI company valuations appear stretched, public valuations for leaders like Nvidia and Microsoft are supported by financial metrics. They distinguish this from the dot-com era.
The bank identified data-center economics and a potential revenue shortfall of $800 billion relative to capital expenditures as key risks. This systemic concern could persist through 2027 and impact broader economic indicators like GDP growth.
