Unusual Call Option Volume Spikes for SiriusXM and ACM Research

Market data from Friday reveals a surge in options trading for SiriusXM Holdings Inc (SIRI) and ACM Research Inc (ACMR), with volumes far outpacing historical averages. This activity often signals that institutional traders or speculative investors are positioning for a potential price increase in the underlying assets. SiriusXM saw 83,257 contracts traded, representing roughly 8.3 million underlying shares. This volume is 231.5% of the stock's average daily trading volume of 3.6 million shares over the past month. Specifically, the $30 strike call options expiring January 15, 2027, were highly active, with 18,360 contracts traded. ACM Research experienced a similar trend, with 19,624 contracts traded, equivalent to 2.0 million underlying shares. This represents 202.1% of its monthly average daily volume of 970,775 shares. The $53 strike call options expiring April 24, 2026, saw the most significant activity with 2,978 contracts. While options spikes can precede volatility or price movements, they remain speculative indicators. Traders will be monitoring these tickers for fundamental catalysts that might drive the share prices toward the highlighted strike prices.