Stocks making the biggest moves premarket: Vertiv, Sirius, Dell, MongoDB & more

Dell is the cleaner signal here: AI demand is no longer just a chip story, it is turning into a systems-and-services story where the winners are vendors that can finance, integrate, and deliver at scale. That favors DELL and the adjacent power/cooling stack (VRT, ETN, PWR) more than pure application software, because the near-term dollar pool is shifting toward physical deployment bottlenecks and working-capital intensity.

MongoDB’s selloff says the market is still discounting “durable consumption” rather than headline beats, so multiple compression can persist even when estimates move up. In software, the next 1-3 month catalyst is not EPS; it is whether management can show a re-acceleration in usage and net retention without leaning on one-time optimization, otherwise the stock can stay structurally cheap relative to growth peers.

Palo Alto’s reaction looks more like positioning exhaustion than a fundamental break, but crowded cyber names are vulnerable when beats don’t translate into upward estimate revisions. The contrarian miss in this tape is that the AI buildout may create more value in grid interconnect, rack power, and deployment logistics than in the software layer, while the main falsifier is any sign that enterprise AI capex is being deferred or that DELL’s raised long-range outlook is purchased with materially worse margins.