Noteworthy Friday Option Activity: STWD, CPNG, RARE

Coupang Inc (CPNG) and Ultragenyx Pharmaceutical Inc (RARE) both experienced elevated options trading volume, each representing approximately 53.2% of their average daily share trading volume. For CPNG, significant activity was concentrated in the July 2025 $31.50 call options (9,117 contracts), while RARE saw heavy trading in its August 2025 $25 put options (1,622 contracts), indicating notable investor interest or positioning around these specific price levels and future dates.

Analysis

Options markets for Coupang Inc. (CPNG) and Ultragenyx Pharmaceutical Inc. (RARE) are signaling significant, targeted investor positioning. For both companies, the total options contract volume represents an unusually high 53.2% of their respective average daily share trading volumes, indicating that derivatives activity is a major component of recent market interest. The nature of this activity is highly divergent between the two firms. In CPNG, a substantial bullish bet has been placed, evidenced by the high volume of 9,117 contracts on the July 2025 $31.50 call options. This long-dated, out-of-the-money call buying suggests a strong conviction from certain market participants that CPNG's stock has significant upside potential over the next year. Conversely, the notable activity in RARE is concentrated in the August 2025 $25 put options, with 1,622 contracts traded. This flow indicates a distinctly bearish sentiment or a significant hedging operation, with investors positioning for a potential decline in the stock's price or protecting existing long positions against downside risk through late 2025.

Key Decisions for Investors

• Investors with a bullish view on Coupang should note the significant call buying at the $31.50 strike, as it may signal institutional conviction and could act as a future magnet for the share price.
• For Ultragenyx Pharmaceutical, the concentrated put buying activity at the $25 strike serves as a cautionary signal, warranting a review of potential downside catalysts or consideration of protective hedging strategies for existing long positions.
• Traders should monitor the open interest for these specific CPNG call and RARE put options in the following sessions to confirm if this high volume translates into new, sustained positions, which would strengthen the bullish and bearish signals respectively.