The market prices a tie in probability between Labour winning 40-44 seats and 45-49 seats (both trading at 48.5c for Yes). However, mainstream polling shows Labour stagnating around 35% support (which translates to roughly 40-42 seats). To achieve 45-49 seats, Labour would need approximately 38%-41% of the party vote, which is significantly above current polling consensus. The market is overestimating Labour's ceiling.