Notable Monday Option Activity: BUR, GMS, STNG

GMS Inc. and Scorpio Tankers Inc. are experiencing notably high options trading volumes today, signaling increased market interest. GMS options volume, representing approximately 995,800 underlying shares, reached 108.1% of its average daily share volume, with significant activity concentrated in the August 15, 2025 $110 strike call. Similarly, STNG options volume, representing about 1.0 million shares, approached 98.8% of its average daily share volume, primarily driven by high interest in the July 18, 2025 $30 strike call. This elevated options activity suggests potential directional views or hedging strategies in these names.

Analysis

GMS Inc. (GMS) and Scorpio Tankers Inc. (STNG) are exhibiting highly unusual options market activity, indicating a significant increase in investor focus. For GMS, options volume reached 9,958 contracts, equivalent to 108.1% of its average daily share trading volume. This activity was heavily concentrated in a single long-dated contract, the August 15, 2025, $110 strike call, which accounted for 4,518 contracts. Similarly, STNG saw options volume of 10,469 contracts, representing 98.8% of its typical daily share volume. The interest in STNG was even more focused, with 10,000 of these contracts trading on the July 18, 2025, $30 strike call. Such substantial and concentrated volume in long-dated call options, far exceeding normal trading liquidity, suggests that one or more institutional investors may be establishing large, targeted positions, potentially reflecting a bullish long-term outlook or executing a complex hedging strategy.

Key Decisions for Investors

• Investors should treat the anomalous options volume in GMS and STNG as a critical signal to investigate potential undisclosed catalysts, as such concentrated institutional flows can often precede significant price movements or corporate events.