An extensive analysis of 295,000 data points from Polymarket has uncovered six key insights into the liquidity dynamics of prediction markets. The study highlights that short-term markets, particularly those with cycles shorter than one day, often suffer from low liquidity, with over 63% of these markets experiencing zero trading volume within 24 hours. In contrast, long-term markets, especially those exceeding 30 days, attract significant capital, with average liquidity reaching $450,000. The research also reveals a polarization in sports-related predictions, where ultra-short-term events see high trading volumes, while mid-term markets are less popular. Additionally, the geopolitical sector is emerging as a rapidly growing area, with a high active ratio of 29.7%. These findings suggest that liquidity in prediction markets is concentrated around major events, with short-term markets appealing to smaller investors and long-term markets attracting larger capital investments.