Kalshi's sports prediction market has experienced explosive growth, with its monthly trading volume surging 80-fold from $180 million at the start of 2025 to $14.4 billion by March 2026. This rapid expansion is largely driven by the sports segment, which now accounts for 68% of Kalshi's total trading volume. The platform's peer-to-peer trading model offers a transparent pricing mechanism, contrasting with traditional sports betting's bookmaker-controlled odds. Kalshi's pricing accuracy and information efficiency are notable, with pre-event odds closely aligning with actual outcomes. The platform's structural advantages, such as its CFTC regulation and broad U.S. market access, have contributed to its rapid growth. However, high fees and limited liquidity during events pose challenges, particularly for large trades. As competition intensifies, Kalshi may need to adjust its fee structure and enhance liquidity incentives to maintain its market position and valuation, which is currently more akin to an exchange than a traditional sports betting company.