Polymarket, the decentralized prediction market platform, saw a significant increase in its monthly active traders in December, reaching an all-time high of 309k. However, trading volume during the same period declined to $1.7 billion, a decrease from $2.28 billion in October and $2.577 billion in November. This recent decline in trading volume comes after a period of strong growth for Polymarket. In the first half of 2022, the platform saw a surge in activity, with trading volume reaching a peak of $2.6 billion in May. However, trading volume has since declined, with the platform's open interest also decreasing by over 75% from its peak of $474 million to $117 million. Despite the recent decline in trading volume, Polymarket remains one of the most popular decentralized prediction market platforms. The platform offers a wide range of markets on a variety of topics, including politics, economics, and sports. Polymarket also allows users to create their own markets, which has contributed to its popularity among users.