Both markets ask whether a specific nation will win the 2026 FIFA World Cup, held in the United States. South Korea's market sits at 0% implied probability, while Sweden's stands at 1%. These markets are fundamentally independent—only one nation can win the tournament—but they exist on a spectrum of perceived tournament viability. Together, they represent two nations competing in one of sports' most uncertain competitions, where form, injuries, and bracket luck all play decisive roles. The 1-percentage-point spread between the two markets reveals trader conviction differences. Sweden's 1% suggests some traders see a non-zero path to victory, while South Korea's 0% implies skepticism about any plausible scenario leading to a title. In context, both are exceptionally low probabilities—comparable to +2000 or longer American odds. This likely reflects both nations' recent tournament performance: South Korea reached the Round of 16 in 2022 and has a strong qualifying record, while Sweden missed qualification for 2022 but has historically been a consistent contender. The 1% floor (vs 0%) for Sweden may reflect their deeper recent World Cup experience or roster depth perceptions. These markets cannot both resolve to YES, as only one tournament winner emerges. However, they could both resolve to NO if either nation is eliminated before the final. The outcomes are negatively correlated in the extreme case—if Sweden wins, South Korea must lose—but they are positively correlated in intermediate scenarios. For example, if both nations perform poorly and fail to advance far, both markets lose similarly. Conversely, if both unexpectedly advance deep into the tournament, one might win while the other exits in the semifinal, making outcomes highly path-dependent on bracket seeding and matchups. Key indicators for each market differ. For South Korea, monitor qualifying campaign momentum, player availability (injuries to stars in European leagues), and draw placement relative to Europe's strongest teams. The AFC confederation provides favorable early-round matchups, which could help them reach deeper stages. For Sweden, track their ability to build cohesion post-qualifying, the fitness of key Premier League contributors, and their European bracket positioning. Both nations depend heavily on avoiding early encounters with title favorites. Managerial stability, squad announcements in January 2026, and pre-tournament friendlies will signal trader confidence shifts in these markets.