Stocks making the biggest moves midday: SpaceX, Lumentum, Huntsman, e.l.f. Beauty, Intel & more

Here are the companies making headlines in midday trading. Rackspace , Advanced Micro Devices — The companies announced an agreement in which Rackspace will deploy a 30 megawatts of AMD-based computing capacity across Rackspace's data centers. Shares of Rackspace jumped 9%, while AMD declined 4%. Mobileye — The developer of driver-assist technologies announced it will establish an autonomous ride-hailing business. Mobileye expects to launch this new initiative in a U.S. city in 2027. Shares were last up nearly 3%. Southwest Airlines — Shares rose almost 4% after Jefferies hiked its price target on the airline to $44 from $37. The bank cited continued "optimization efforts of cabin segmentation and load factors" for the change. To be sure, the new target signals downside of 4.5% from Monday's close. E.l.f. Beauty — Shares of the cosmetics company jumped more than 5%. The company launched its e.l.f. Hair line of products late Monday and will begin offering the new products on TikTok shop Tuesday and at Target next week. Shares are heading for their seventh winning day. Gilead Sciences — Shares were up 2%. Gilead said the Food and Drug Administration accepted the company's supplemental drug application for Yeztugo as a potential once-weekly tablet for HIV prevention. Chip stocks — Semiconductor companies took a breather from a winning run as traders sold shares. The VanEck Semiconductor ETF (SMH) was last down nearly 3% on the day after three positive sessions. …