The rules mention using the 'Forecast' from Wunderground but provide a link to the 'History' page, which could cause literal ambiguity regarding the resolution criteria. Additionally, occasional missing data on the weather platform or the integer rounding rules when converting from Fahrenheit to Celsius might lead to edge-case disputes.

April 13, 2026 - April 14, 2026, the price of 19°C surged from 8c to 19.45c (peaking at 29.7c during the period), the price of 20°C surged from 21.5c to 43c, while the price of 22°C plummeted from 22c to 6.9c. The reason is that as the target date approaches, weather forecasts updated, lowering the expected high temperature from the 21-22°C range to the 19-20°C range. April 13, 2026 - April 13, 2026, the price of '24°C or higher' plummeted from 45c to 7.5c. The reason is that as the target date approaches, the latest weather forecasts clearly indicate a high of around 21-22°C, largely ruling out the possibility of an extreme high of 24°C or above.

Predicting the debut week sales of a specific artist is a relatively standard pop culture/entertainment market. It has a dedicated niche audience of chart watchers and music industry trackers, but isn't universally followed like elections or macroeconomics, making it moderately niche.

April 12, 2026 - April 13, 2026, the price of the '140k+' option surged from 72.5c to 90c, while the '120k-140k' option plummeted from 18c to 6.5c. This occurred because early tracking data for the album's first weekend (such as Hits Daily Double projections) further confirmed expectations that sales would significantly exceed 140,000 units, leading the market to price in this outcome almost entirely. April 10, 2026 - April 12, 2026, the price of the '140k+' option surged from 53.5c to 76c, driven by early data performance following the album's official release exceeding expectations, leading to heavy betting that debut week sales will surpass 140k. April 10, 2026 - April 12, 2026, the '120k-140k' option dropped from 35.5c to 15c, and the '100k-120k' option fell from 28c to 7c, as market confidence shifted to the highest sales bracket, ruling out lower ranges. April 8, 2026 - April 11, 2026, the price of the '140k+' option surged from 45c to 67c, while the '120k-140k' option dropped from 44.5c to 22.5c. This was driven by recent streaming data and early projections elevating sales expectations as the album release approached, causing capital to heavily concentrate in the highest bracket. April 8, 2026 - April 10, 2026, the price of the '80k-100k' option plummeted from 35.5c to 18c, and '100k-120k' fell from 41c to 31c. The reason is a significant upward shift in debut week sales expectations, causing capital to rotate into higher brackets (>120k), alongside a gradual correction of market overpricing.

The primary risk lies in defining the motive behind the tariff. If the official announcement does not explicitly state 'military cooperation with Iran' as the reason, the market must rely on a 'consensus of credible reporting', which is highly prone to disputes during resolution.

Tariffs on countries assisting Iran militarily would not only escalate trade frictions (potentially impacting the S&P 500 if targeting major economies) but also highlight escalating Middle East geopolitical risks. This would directly drive up crude oil prices and boost demand for safe-haven assets like gold.

April 13, 2026 - April 14, 2026, the price of the 32°C option surged from 16c to 32c, while the 28°C option collapsed from 21c to under 1c. This is because weather models further confirmed that the high temperature in Taipei on April 15 will be around 31-32°C, completely ruling out lower temperature possibilities. April 13, 2026, the price of the 28°C option collapsed from 21c to 7c, while the 31°C and 32°C options surged (31°C from 19c to 28.5c; 32°C from 16c to 25c). This was driven by updated short-term weather forecasting models ruling out cooler temperatures and shifting the expected high into the 31-32°C range as the target date approached.

April 13, 2026 - April 14, 2026, tail options like '78-79°F' plummeted from 19.5c to 2.85c, and '74-75°F' crashed from 16c to under 1c. This occurred because as the resolution date approaches, weather forecasts become highly accurate and converged on the 82-85°F range, crushing tail probabilities. April 13, 2026 - April 14, 2026, '86°F or higher' dropped from 28c to 14c, as updated models suggested it is highly unlikely to exceed 85°F. April 13, 2026 - April 14, 2026, '84-85°F' experienced sharp volatility between 35.5c and 13c, ultimately settling at 28c, reflecting market tug-of-war over whether the exact peak will fall at 83°F or 84°F.

The current market pricing suggests '82-83°F' as the favorite outcome (38.5c). However, the resolution source (Weather Underground) and other local stations (KHOU) explicitly forecast a high of 84°F [8, 11]. This indicates a slight divergence where the market is leaning slightly cooler than the direct official forecast, which points to the '84-85°F' bucket.