Dell Technologies (NYSE: DELL) is facing mounting competitive pressure in the artificial intelligence server market, with GF Securities warning that rivals could erode its dominance among two of its most critical customers.

The brokerage slashed its price target on Dell from $445 to $403, citing the risk that Super Micro Computer (NASDAQ: SMCI) and Quanta could capture meaningful business from clients Dell has long relied upon for large infrastructure contracts.

GF Securities analyst Evan Lee maintained a Hold rating on Dell, arguing that its position as a major supplier to SpaceX and sole supplier to CoreWeave (NASDAQ: CRWV) may weaken as Nvidia’s (NASDAQ: NVDA) Rubin platform enters the market.

Lee wrote in the firm’s note: “Per our downgrade report on June 25, we think Dell’s leading positioning (major supplier for SpaceX and sole for CoreWeave) will face competitive pressures starting with Rubin platform.”

Super Micro’s backlog has reportedly climbed to $60 billion, significantly strengthening its ability to compete for a larger share of SpaceX’s future infrastructure spending.

Meanwhile, Lee expects Quanta to become a second supplier of VR200 systems to CoreWeave, potentially capturing between 20% and 30% of that business by 2027.

Dell’s Infrastructure Solutions Group has grown increasingly central to its overall performance as cloud providers and AI companies pour capital into Nvidia-powered data center systems, but that reliance on a handful of large contracts also creates concentration risk.

GF Securities still expects Dell to ship 15,000 NVL72 racks in both fiscal 2027 and fiscal 2028, indicating that near-term demand for its AI server products remains healthy despite the competitive concerns.

Lee cautioned, however, that Dell’s stock is trading at roughly 20 times fiscal 2028 earnings, a valuation that already prices in much of the anticipated strength and leaves limited room for any negative surprises.

Dell’s scheduled September 3 earnings report is now shaping up as a critical test of whether strong AI server demand can offset the emerging threat of market share losses to better-capitalized rivals.

Investors will be watching closely for updates on AI server backlog figures, order concentration, profit margins, and any revisions to management’s full-year guidance when results are released.

A stronger-than-expected outlook, accelerating rack shipments, or evidence that Dell is successfully retaining its SpaceX and CoreWeave volumes could provide meaningful support for the stock price.

Conversely, any signs of pricing pressure, margin deterioration, or reduced order concentration would reinforce concerns that Dell’s AI-driven growth story is becoming significantly more competitive at precisely the wrong moment in its valuation cycle.