Arm Holdings (Nasdaq: ARM) has a market capitalization of $242.02B. Last close $226.59 (as of 2026-10-22); 52-week range $100.02 to $452.70. ORTEX data as of 2026-10-20: short interest is 11.35% of free float, 2.9 days to cover and the average cost to borrow is 0.45%.