The 2026 Seoul Mayoral Election represents one of South Korea's most closely watched municipal contests, with implications extending beyond the capital to national political trends. Seoul, as the country's largest metropolitan area and political center, serves as a bellwether for broader shifts in voter sentiment. This event aggregates twelve distinct prediction markets, each tracking the likelihood that a specific candidate will win the mayoral race. The candidates included span major political parties and represent different visions for Seoul's governance, including Park Ju-min, Na Kyung-won, Park Yong-jin, Ahn Cheol-soo, and Kang Hoon-sik, among others. These markets function as real-time probability assessments, reflecting the aggregated judgment of traders who buy and sell shares corresponding to each candidate's chances of victory. The prices you see below represent the current market consensus on each outcome's likelihood. A candidate trading at 45¢ implies roughly a 45% estimated probability of winning, while one at 20¢ suggests approximately 20% odds. As new polling data emerges, campaign developments unfold, or endorsements are announced, these market prices adjust dynamically to reflect updated expectations. When reading the prices below, consider several factors: markets often react quickly to news events but may overshoot or undershoot actual probabilities in the short term. Markets that remain stable over time tend to reflect genuine uncertainty about the outcome, while sharp movements may signal new information entering the market. The sum of all candidate markets will typically exceed 100¢, as market pricing incorporates the uncertainty inherent in predicting electoral outcomes. These prediction markets offer a window into how information flows through financial systems and how collective decision-making under uncertainty works in practice.