There is a slight textual ambiguity in the rules: the description mentions 'by the Forecast', yet the provided URL and primary phrasing point to 'recorded' historical data. This contradiction could lead to resolution disputes if the forecasted high differs from the actual recorded high.

On April 26, 2026, the price of the '86°F or higher' option surged from 42.5c to 88.5c. This is because, as the date approaches, weather forecasts clearly indicate that Houston will experience high temperatures around 90°F on April 28, greatly increasing the certainty of this bucket hitting. Simultaneously, the prices of '84-85°F', '82-83°F', and lower temperature ranges experienced significant drops of over 10c, driven by the same hot weather forecast, as the market priced out the possibility of lower temperatures.