April 23, 2026 - April 24, 2026, the price of the 6°C option surged from 15.5c to 38.5c, as updated forecasts narrowed the expected low temperature to this specific range as the date approached. April 23, 2026 - April 24, 2026, the price of the 3°C option plummeted from 25c to around 1.1c, as the latest weather data completely ruled out the possibility of such extreme cold.

April 23, 2026 - April 25, 2026, the price of the '70-71°F' option rose from 26c to a peak of 41c before falling to 19.5c, due to minor adjustments in weather forecasts altering expectations. April 23, 2026 - April 25, 2026, the price of the '66-67°F' option dropped from 26c to 6c, as the market heavily discounted the likelihood of temperatures dropping below 68°F closer to settlement. April 23, 2026 - April 24, 2026, the price of the '74-75°F' option plummeted from 26c to 3c, due to a significant downward shift in the expected minimum temperature.

As a core tech giant, Amazon's earnings results will directly cause significant volatility in its stock (AMZN), typically moving 5-10%. Additionally, given its massive weighting in the Nasdaq 100 and S&P 500, an earnings beat or miss creates a direct impact and directional catalyst for the tech sector and broader market sentiment.

April 21, 2026 - April 23, 2026: The price of Option 'Yes' steadily climbed from 84c to a peak of 94.5c, a 10.5c increase. This upward momentum is primarily driven by growing market confidence in big tech earnings beats as the reporting date approaches, prompting an influx of bullish bets.

April 24, 2026 - April 25, 2026, the price of the '46-47°F' option plummeted from 34.5c to 11c because, as the resolution date approached, forecasts confirmed a cold front and rain, indicating lows well below this range. April 24, 2026, the price of the '42-43°F' option surged from 16c to 35.5c, as weather models solidified the expected temperature drop, making it a highly likely outcome. April 23, 2026, the price of the '44-45°F' option climbed from 13.5c to 36c, as earlier forecasts briefly suggested lows in this range before dropping again as the colder front was confirmed.

There is a notable risk: the title asks for 'Seoul', but the rules strictly specify data from the 'Incheon Intl Airport' (RKSI) weather station. Incheon is coastal and its temperatures often differ from downtown Seoul, creating a trap for those who only read the title.

2026-04-24 to 2026-04-25, the price of 9°C surged from around 26c to 97.5c. This occurred because, as the resolution date approached, actual meteorological observations locked in this temperature range. 2026-04-24 to 2026-04-25, the price of 8°C or below plummeted from 30c to 1.6c, as observational data ruled out the possibility of the temperature dropping to 8°C or lower.