April 12, 2026 - April 13, 2026, the Yes price for '19°C' surged from 54.5c to 95.0c, as real-time temperature data in the afternoon of April 13 local time confirmed the high reaching 19°C, creating a strong market consensus.
April 12, 2026 - April 13, 2026, the Yes price for '20°C' plummeted from 51.0c to 4.5c, as real-time data made the possibility of reaching 20°C highly unlikely.
April 11, 2026 - April 12, 2026, the Yes price for '19°C' surged from 22.5c to 51.5c, as weather forecasts further confirmed the temperature center around 19°C as the date approached.
April 11, 2026 - April 12, 2026, the Yes price for '18°C' plummeted from 37.0c to 0.05c, because real-time weather data updates and the passage of time completely ruled out highs below 19°C.
April 11, 2026 - April 12, 2026, the Yes price for '20°C' rose from 21.5c to 40.5c, indicating that the market still retains some hedge against the temperature slightly exceeding expectations to reach 20°C.
April 9, 2026 - April 12, 2026, the Yes prices for '21°C' and '22°C or higher' plummeted from 23.0c and 30.5c to 8.8c and 0.9c respectively, because extreme high-temperature forecasts were completely ruled out.
April 9, 2026 - April 10, 2026, the Yes price for '20°C' dropped from 30.5c to 11.0c and then fluctuated wildly, reflecting model volatility between the 18°C-20°C range.