CoreWeave shares jump 25% on strong Q3, lifting neocloud sector

The read-through here is less about CoreWeave's own beat than about what it signals for demand across the neocloud complex: a single provider's upside guidance dragged the whole sector up double digits, suggesting the market treats these names as one AI-infrastructure trade rather than distinct businesses. That correlation cuts both ways, and the Anthropic IPO chatter adds a second lever — a marquee customer's listing could reinforce the demand narrative or redirect attention and capital away from the neoclouds themselves. Whether the sector's rally holds once the initial guidance glow fades, and how Anthropic's debut prices relative to expectations, are the open questions.