Weather prediction markets are relatively common on prediction platforms, but forecasting the highest temperature of a specific Chinese city (Chengdu) on a specific date remains a highly niche and localized topic. It is not something the general public would deeply consider or accurately quantify unless they are actively trading it.

From 2026-05-01 01:38 to 2026-05-01 11:23, the price of '20°C' soared from 24c to 99.6c, while '21°C' and '22°C or higher' crashed to near zero. The reason is that real-time observation data confirmed the daily high did not exceed 20°C. From 2026-04-30 21:18 to 2026-05-01 02:43, the price of '22°C or higher' plummeted from around 45c to 27.8c, likely due to real-time weather forecast updates indicating the high temperature would not reach 22°C. From 2026-04-30 08:18 to 2026-04-30 12:38, the price of '20°C' surged from 12c to 26c, driven by short-term weather forecast revisions that increased the probability of the maximum temperature falling within this range.

While betting on the exact temperature of a specific city on a specific day is not a mainstream focus for the general public, it is a relatively common and standard niche market within prediction platforms.

April 30, 2026 - May 1, 2026, the price of the 26°C option surged from 19c to 99.85c, as the actual date arrived and real-time weather data confirmed the high temperature at 26°C, removing almost all uncertainty. April 29, 2026 - May 1, 2026, the price of the 25°C option climbed from 24.5c to 49c, as weather forecasts became highly certain near the resolution date, pinpointing the peak temperature around 25°C. April 29, 2026 - May 1, 2026, the 24°C option rose from 17.5c to a peak of 35c before falling to 15c. This fluctuation occurred as earlier forecasts suggested a slightly cooler day, but actual midday temperatures reaching 24°C shifted the consensus toward 25°C. April 29, 2026 - May 1, 2026, the 23°C option plummeted from 15.5c to 0.3c, because real-time weather observations exceeded this threshold, effectively eliminating it as a possible outcome.

May 1, 2026: The price of 26°C surged from 13c to 99.95c, while the price of 27°C plummeted from 63.5c to 0.05c, because the actual temperature data for the day was finalized, with the high falling short of the earlier 27-28°C forecasts and locking in at 26°C. April 30, 2026 - May 1, 2026: The price of 27°C surged from 36.5c to 50c as the target date approached and weather forecasts became highly certain, locking in the expected high around 27°C. April 29, 2026 - April 30, 2026: The price of 29°C plummeted from 21c to 4.65c because updated short-term weather models ruled out the possibility of an anomalous temperature spike. April 29, 2026 - April 30, 2026: The price of 28°C rose from 22c to a peak of 36c (before settling back to 26.5c) due to a brief forecast update indicating slightly warmer temperatures, which was later corrected as real-time observational data stabilized the consensus at 27-28°C.

Predicting the exact number of high-magnitude earthquakes globally within a specific week is highly random. It is a typical novelty and probability-driven market, as almost no one thinks about or tracks such specific short-term geological statistics before seeing the prompt.

April 27, 2026 - April 30, 2026, the price of Option 0 climbed steadily from 49c to 71c, as more than half of the resolution timeframe elapsed without any magnitude 6.5+ earthquakes, naturally driving up the probability of a zero-occurrence outcome. April 28, 2026, the prices of options 1, 3, 4, 5, and >5 experienced massive, short-lived spikes (e.g., Option 1 surged from 30.5c to 47.5c before dropping to 33c, and 3, 4, 5, >5 all temporarily spiked to ~50c before plummeting back). This was likely due to anomalous trades or fat-finger errors in an extremely illiquid market environment. April 24, 2026 - April 26, 2026, the prices of options 2, 3, 4, 5, and >5 plummeted significantly from the 30c-50c range to single digits or low teens (e.g., Option 2 dropped from 50c to 12.5c, Option 3 fell from 39c to under 4c). This was likely due to severe initial mispricing caused by extremely low liquidity when the market opened, which was later corrected by traders aligning prices with natural statistical probabilities.

Moderna's earnings result directly dictates the price action of its stock (MRNA). As a prominent biotech stock, earnings beats or misses typically cause price movements of around 5% or more, resulting in a medium to high impact on the individual stock. The impact on broader market indices like the S&P 500 and Nasdaq 100 is negligible.

April 28, 2026 - April 30, 2026, the price of Option_'Yes' plunged from 55c to 12.5c. This continuous drop is likely driven by market participants' ongoing confusion regarding negative EPS math (mistakenly assuming an expected -2.03 is a miss against -2.67), or bearish sentiment triggered by negative news leading to sell-offs. April 27, 2026 - April 27, 2026, the price of Option_'Yes' plunged from 55c to 29c. This may have been driven by market participants' confusion regarding negative EPS math, or bearish sentiment triggered by news of the U.S. government pulling funding for Moderna's bird flu vaccine. April 24, 2026 - April 24, 2026, the price of Option_'Yes' surged from 36.5c to 50.5c. This was likely driven by market participants correcting their fundamental expectations for Moderna as the earnings release date approached, causing inflows that pushed the previously undervalued 'Yes' price back toward a more reasonable range.

The current market price for 'Yes' is around 17.5c, implying a less than 20% probability that Moderna will beat the estimate. However, the Wall Street consensus EPS estimate is between -2.03 and -2.31, which is significantly better than the benchmark of -2.67. This severe divergence is highly likely due to a misunderstanding among prediction market traders regarding negative financial figures, mistakenly treating a smaller negative number as a miss.