Midweek Option Highlights: Amazon, Walmart, and Vistra

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Today, Amazon.com Inc. (AMZN) has reported significant trading activity, with 553,663 contracts exchanged, equating to approximately 55.4 million underlying shares—87.9% of its average daily trading volume of 63 million shares over the past month. The highest volume was identified for the $242.50 strike call option expiring on July 1, 2026, which saw 44,575 contracts traded, representing about 4.5 million shares.

Walmart Inc. (WMT) experienced a trading volume of 182,812 contracts today, reflecting around 18.3 million underlying shares or 75.2% of its monthly average of 24.3 million. The notable action involved the $110 strike put option expiring on July 17, 2026, with 20,633 contracts traded, amounting to roughly 2.1 million underlying shares.

Vistra Corp (VST) recorded 25,100 contracts traded, representing approximately 2.5 million underlying shares or 57.1% of its monthly average of 4.4 million. The $190 strike call option expiring on September 18, 2026, was particularly active, with 5,050 contracts changing hands, equivalent to about 505,000 underlying shares.

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