Notable Tuesday Option Activity: RIVN, CORZ, COOP

Core Scientific Inc (CORZ) and Mr Cooper Group Inc (COOP) are experiencing significantly elevated options trading volume today, reaching 57.3% and 56.2% of their respective average daily trading volumes. For CORZ, notable activity centers on the December 2025 $20 strike call option, with 5.3 million underlying shares traded, suggesting bullish or speculative interest. Conversely, COOP saw substantial volume in its August 2025 $155 strike put options, representing 202,200 underlying shares, indicating potential bearish sentiment or hedging activity.

Analysis

Core Scientific (CORZ) and Mr. Cooper Group (COOP) are both exhibiting highly unusual options market activity, indicating significant institutional positioning. For CORZ, the options volume represents a substantial 57.3% of its average daily share volume, driven by concentrated activity in the December 19, 2025, $20 strike call options, where 52,884 contracts have traded. This heavy, long-dated call buying points to a strong speculative or bullish conviction regarding the company's long-term upside potential. Conversely, COOP's options volume reached 56.2% of its average daily share volume, with a notable focus on the August 15, 2025, $155 strike put options, which saw 2,022 contracts traded. This activity suggests a significant bearish bet or a large-scale hedging operation to protect existing long positions against a future price decline.

Key Decisions for Investors

• For Core Scientific (CORZ), the exceptional volume in long-dated call options signals strong bullish sentiment from at least one major market participant, warranting further investigation into potential long-term catalysts.