Polymarket, a prediction market operator, experienced a surge in its weekly trading volume, rising from $200 million a year ago to over $4 billion in July 2026. This growth is attributed to increased activity on both its US and international platforms. After resuming US contracts in early 2026, following a pause in 2022 due to regulatory issues, Polymarket has captured 12% of the market share and has led in app downloads.
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The company, which is valued at $21 billion, generates revenue mainly through transaction fees and is looking to expand into sports contracts, seek institutional adoption, and explore data monetization. Despite the promising growth, Polymarket faces regulatory and legal challenges, including potential Supreme Court involvement regarding the legality of sports event contracts.
In related market activity, as of September 25, 2026, Pluang reported that of the 150 priced US stocks available for trading, 68 increased in value while 81 declined. Notable stocks included Qualcomm (QCOM) at $203.27, rising 4.64%, with order activity showing 89% sell and 11% buy; PayPal (PYPL) at $54.90, increasing 4.37%, with a 34% sell and 66% buy activity; and Roblox (RBLX) at $46.82, decreasing 4.12%, with 98% sell and 2% buy activity.