The rules contain significant caveats: normal replies do not count (which make up the majority of Musk's activity), but main-feed replies do. Deleted posts count if kept for >5 minutes. Furthermore, resolution heavily relies on a specific custom tracker, which may yield vastly different totals compared to a user's manual count on X.

Betting on the exact number of tweets a public figure makes in a specific week is a highly niche and entertainment-driven market. Ordinary people do not ponder the exact statistical count of such trivial daily activities, making it a classic novelty prediction market.

May 2, 2026 - May 5, 2026, the price of '160-179' climbed from 14.5c to 28.5c as tweet rates converged further, making this range the most probable outcome and attracting steady fund inflows. May 3, 2026 - May 4, 2026, the price of '120-139' dropped sharply from 13.25c to 2.05c, and '140-159' fell from 16.4c to 7.25c. This occurred because Musk's tweet frequency rebounded after the weekend, shattering the previous day's low-frequency expectations, causing funds to refocus on the normal 160-219 central ranges. May 3, 2026 - May 4, 2026, the price of '180-199' climbed from 15.5c to 24.5c as tweet rates stabilized over the weekend pointing towards this range, causing funds to concentrate in the more probable central ranges. May 2, 2026 - May 3, 2026, the price of '120-139' surged significantly from 2.35c to 13.25c, and '140-159' surged from 5.1c to 16.4c. This occurred because as tracking days passed, Musk's daily tweet run rate continued to fall, prompting traders to significantly downgrade their overall median estimates. April 29, 2026 - May 2, 2026, the price of '160-179' steadily climbed from 5.5c to 17c, and '140-159' surged from 2.3c to 10.85c. This is because first-day tracking data showed a lower posting frequency than initial aggressive expectations, prompting traders to revise their median projections downwards. April 28, 2026 - May 1, 2026, multiple high-frequency options experienced steep declines. The price of '260-279' plummeted from 39.5c to 5.5c, '240-259' dropped from 30c to 10.5c, and '220-239' fell from 30.5c to 14.5c. This was due to significant previous overpricing or speculation; as the tracking period approached, traders re-evaluated Musk's realistic posting frequency, leading to mass sell-offs and a reversion to the mean.

May 4, 2026 21:48 - May 5, 2026 08:38, the price of the 78-79°F option plummeted from 41c to 19.5c before rebounding to 39.5c; simultaneously, the 80-81°F option surged from 26c to 45.5c before retracing to 33c. The reason is the overnight fluctuation in weather forecast models, which initially revised the expected high temperature above 80 degrees, but subsequent morning data slightly moderated the likelihood of extreme highs.

There is a slight divergence. The National Weather Service (NWS) explicitly forecasts a high of near 81°F for La Guardia Airport [10], which directly points to the 80-81°F option. However, the prediction market currently prices the 78-79°F option (39.5c) higher than 80-81°F (33c). This suggests traders might be relying on more conservative models or anticipating an overestimation bias in the official forecast.

May 1, 2026 - May 4, 2026: The price of claude-opus-4-6-thinking surged from 73c to 96c, while options like Other, claude-opus-4-7-thinking, and gemini-3.1-pro-preview plummeted from 25c-29c to below 3c. This was caused by the approaching deadline confirming claude-opus-4-6-thinking's sustained #1 rank, virtually eliminating the chances for an upset. May 1, 2026 - May 2, 2026: The price of claude-opus-4-6-thinking surged from 73c to 94c, driven by its sustained dominance on the LMSYS Chatbot Arena leaderboard and increasing market confidence as the resolution date approaches. Concurrently, other competing models (e.g., claude-opus-4-7-thinking, gemini-3.1-pro-preview) saw their prices plummet by more than 10c down to near 1c, reflecting their fading chances of taking the top spot.

The title asks for the temperature in Seoul, but the resolution rules explicitly use data from the Incheon International Airport Station (RKSI). Being coastal, Incheon Airport's temperature can differ significantly from downtown Seoul, creating a trap for users who only read the title. Additionally, the requirement for whole degree Celsius precision could introduce rounding disputes.

Predicting the exact highest temperature of a specific location on a given day is a niche weather prediction market. While such markets exist, they are not mainstream topics compared to politics, economics, or sports.

May 4, 2026 - May 5, 2026, the price of the 18°C option surged from around 32c to 92.5c, while the 19°C option plummeted from a peak of 50.5c to 8.5c. This occurred because, as the May 5 resolution day arrived, real-time temperature recordings at Incheon Airport confirmed a daily high of approximately 18°C (64°F). The removal of forecast uncertainty prompted traders to heavily buy into the 18°C bracket. Between May 3 and May 4, 2026, the prices of the 16°C and 17°C options plummeted from around 27c to under 3c, and from 28c to 6c (before slightly rebounding to 14c), respectively. Concurrently, the 19°C option surged from 18c to roughly 40c, and the 18°C option spiked from 17c to a peak of 42c. This shift occurred because updated short-term forecasts indicated warmer clear-sky conditions, pushing the expected high for Incheon Airport to the 18°C-19°C range and causing the market to aggressively price out lower temperature estimates.