Dell Technologies shares jumped almost 37% in premarket trading on Friday after the company raised its full-year financial outlook [1].

These swings highlight the volatile nature of tech and aerospace stocks as investors react to updated corporate projections and operational failures. The movements on May 29, 2026, saw Dell and AST SpaceMobile lead a group of significant price shifts alongside HP and Gap [1].

Dell reported an adjusted earnings per share guidance of $17.90 [1]. This figure exceeds the $13 per share that analysts polled by LSEG had expected [1]. The company also provided full-year revenue guidance between $165 billion and $169 billion [1].

In contrast, AST SpaceMobile saw its shares fall 14% in premarket trading [2]. The decline followed a launch anomaly involving Blue Origin's New Glenn rocket, which failed to place the company's satellite into its intended orbit [2].

Other companies, including HP and Gap, also appeared among the biggest premarket movers as the U.S. equity markets opened for the day [1]. These shifts were driven by a combination of analyst upgrades and sector-specific news [1].

“Dell Technologies shares jumped almost 37% in premarket trading”

The stark contrast between Dell's surge and AST SpaceMobile's decline illustrates the different risk profiles within the tech sector. While Dell is benefiting from strong financial forecasting and market demand, AST SpaceMobile is exposed to the high-stakes physical risks of aerospace deployment. A single launch failure can erase significant market value, whereas guidance raises can trigger immediate institutional buying.