Arm Holdings (LSE: 0ADF) has a market capitalization of $242.02B. Last close $224.19 (as of 2026-10-22); 52-week range $104.00 to $419.80. ORTEX data as of 2026-10-20: short interest is 1.76% of free float, 2,596.2 days to cover and the average cost to borrow is 0.45%.