Arm Holdings stock popped 6% in after-hours trading on Tuesday as CEO Rene Haas announced 2031 annual revenue expectations that were more than six times what it was in 2025. Haas unveiled Arm's first in-house chip on Tuesday at an event in San Francisco, with Meta as the initial customer. CNBC got an exclusive first look at the chip earlier this month, visiting the lab Arm built for it in Austin, ...