Summary · why it matters
Bernstein named CoreWeave as the single stock most exposed to a potential AI slowdown, sending its shares down 6.75% to close at $82.98 on Sept. 14. The warning followed an essay by Anthropic CEO Dario Amodei titled "We Must Pace the Frontier," in which he argued AI companies need to slow how they improve model capabilities, a call backed within hours by OpenAI CEO Sam Altman and Elon Musk. Bernstein analyst Madison Rezaei said about 25% of CoreWeave's active U.S. power sits in Tier 3 and Tier 4 rural markets built for training, with another 74% of its contracted but not yet active power in those same markets, leaving it vulnerable if training demand slows. Bernstein rates CoreWeave Underperform with a $74 price target, while the stock's average Wall Street price target sits near $139. By contrast, Bernstein rates Equinix, Digital Realty and Csquare Outperform, with price targets of $1,270, $226 and $27 respectively, noting each keeps more than 90% of its U.S. capacity in metro markets. The sell-off spread across AI infrastructure, with Nebius down 8%, Applied Digital down 6%, DigitalOcean down 5%, IREN down 4%, Lumentum down 8%, Ciena and Coherent each down 7%, Arista Networks down 5%, Marvell and Arm each down 8%, AMD and Intel down 6%, and Broadcom down 4%.