Wall Street has spent the past two weeks swinging between two extreme narratives about artificial intelligence, with hundreds of billions of dollars moving out of and then back into AI-exposed stocks after leading tech executives called for a slowdown in AI development.
Wall Street has spent the past two weeks swinging between two extreme narratives about artificial intelligence, with hundreds of billions of dollars moving out of and then back into AI-exposed stocks after leading tech executives called for a slowdown in AI development.
The turbulence began on September 12, when Anthropic chief executive Dario Amodei called for a slowdown in development of cutting-edge AI models, a position quickly backed by OpenAI chief executive Sam Altman and SpaceX chief executive Elon Musk. The interventions appeared to validate a series of recent warnings from within the industry about existential risks posed by the technology.
The market response was swift. On the first trading day after Amodei's essay was published, AI infrastructure stocks tumbled. The tech-heavy Nasdaq 100 Index dropped 1.5 per cent between September 14 and 15, erasing more than $US600 billion ($850 billion) in market value, as investors worried that hitting the brakes on development would mean less spending on computing equipment.
Money has since flowed back into the sector, however, as the market's mood shifted from fear to greed, leaving investors scrambling to keep up with the rapid reversals.
"This has been a narrative market and the narrative changes every other week," said Nancy Tengler, chief executive at Laffer Tengler Investments.
Analysis
Why This Matters
- AI-related equities have become a key driver of broader market moves, so sharp swings in sentiment can affect a wide range of investors.
- The episode highlights how sensitive the sector is to statements from a small number of high-profile industry figures.
- The outcome of this volatility could influence future capital spending on AI infrastructure and the pace of model development.
Background
AI has become a central theme in equity markets, with investor enthusiasm built on the technology's potential to transform business and society. Industry leaders have periodically voiced concerns about the risks of developing increasingly capable systems. The recent calls for a slowdown drew on those concerns, and the market's sharp response reflected how much of its AI optimism is tied to continued heavy investment in computing power.
Key Perspectives
Market participants: Nancy Tengler of Laffer Tengler Investments says the market is driven by narrative, and that narrative changes every other week. This has left investors struggling to keep pace with rapid shifts between fear and greed.
AI industry leaders: Anthropic's Dario Amodei called for a slowdown in development of cutting-edge AI models, a position backed by Sam Altman and Elon Musk. Their intervention was widely seen as validating recent warnings about existential risks, but it also raised fears of reduced spending on AI infrastructure.
Critics and skeptics: Some investors interpreted the calls for a slowdown as a threat to the computing equipment industry, since a slower development pace would mean less demand for the hardware that powers AI. This concern drove the initial selloff in AI infrastructure stocks.
What to Watch
- Whether AI-exposed stocks continue to recover or a fresh wave of caution emerges.
- Whether other industry figures join the calls for a slowdown, and whether any concrete policy or corporate changes follow.
- How much weight investors place on existential risk warnings versus near-term business fundamentals in the coming weeks.