Bullish flow in Arm Holdings PLC with shares up 4.46%

Bullish flow in Arm Holdings PLC (ARM), with shares up $6.99, or 4.46%, near $163.72. Options volume roughly in line with average with 47k contracts traded and calls leading puts for a put/call ratio of 0.59, compared to a typical level near 0.56. Implied volatility (IV30) is higher by 0.4 points near 62.29,and above the 52wk median, suggesting an expected daily move of $6.42. Put-call skew flattened, suggesting a modestly bullish tone, following an upgrade to Outperform at BNP Paribas Exane.Looking ahead: Arm Holdings PLC (ARM) will report earnings after the close on 2025-07-30.Option markets are pricing in a 50% probability of a move greater than 11.21% or $18.36.