Notable Friday Option Activity: AEP, C, MARA

Citigroup (C) and Marathon Digital Holdings (MARA) are experiencing notably high options trading volumes today, with C's options activity representing 69.8% of its average daily share volume and MARA's at 68.1%. For Citigroup, significant interest is concentrated in the December 2025 $115 call options, while Marathon Digital Holdings sees substantial volume in its November 2025 $16 call options, indicating considerable speculative or strategic positioning in these long-dated contracts.

Analysis

Citigroup (C) and Marathon Digital Holdings (MARA) are exhibiting unusually high options trading volumes today, with C's options activity representing 69.8% of its average daily share volume and MARA's at 68.1%. This significant derivatives activity, particularly in long-dated call options, suggests notable investor interest.

For Citigroup, a substantial 20,866 contracts of the December 2025 $115 strike call option have traded, representing approximately 2.1 million underlying shares. Similarly, Marathon Digital Holdings saw 24,141 contracts of its November 2025 $16 strike call option trade, accounting for about 2.4 million underlying shares. This concentration in specific out-of-the-money, long-dated calls is a key technical signal.

The high relative volume in these particular call options, despite a neutral sentiment classification, points towards either speculative bullish positioning or strategic hedging by institutional players. Such activity often reflects expectations of significant price movements over an extended timeframe, given the long expiration dates. This warrants closer monitoring for potential shifts in underlying stock price momentum.

Key Decisions for Investors

• Investors should monitor the open interest and subsequent trading activity in C's December 2025 $115 calls and MARA's November 2025 $16 calls for further directional conviction.
• Consider analyzing the implied volatility of these long-dated options to gauge market expectations for future price swings, as high volume in out-of-the-money calls can signal potential upside.