Polymarket has seen a surge in trading volume as several accounts profited significantly ahead of major product launches by OpenAI and Google. Notably, four accounts collectively earned over $13,000 in the week leading up to the release of GPT-5.2 on December 11. Additionally, one account made over $1 million in a single day by betting on Google's 2025 search data. This activity has heightened concerns about potential insider trading, as the fear and greed index among traders has increased. In response, platforms like Coinbase and Robinhood are updating their policies to address prediction markets. Meanwhile, KPMG has issued warnings that such speculative bets could potentially breach legal boundaries, despite the SEC not currently regulating these markets.