April 28, 2026 - April 29, 2026, the price of the 24°C option surged from around 32c to 61c, driven by updated weather models confirming a warm front that adjusted expected high temperatures upwards from 23°C to 24°C. April 28, 2026, the price of the 23°C option spiked to 57c intraday before plummeting to 28.5c, as updated forecasts confirmed a high likelihood of temperatures exceeding 23°C. April 27, 2026 - April 29, 2026, the price of the 22°C option bled from 25c down to under 5c, as actual temperature trends tracking closer to settlement clearly indicated a much warmer day.

Weather predictions are typical long-tail markets. While weather is a common phenomenon, betting on the exact maximum temperature at a single station on a specific date is somewhat trivial and niche for the general public, giving it moderate novelty.

April 28, 2026 - April 29, 2026: The price of 17°C surged from 36.5c to 53.5c, as more accurate weather forecasts locked into this temperature range as the date approached. April 28, 2026: The price of 16°C dropped from 34.5c to 17c and then rebounded to 30.5c, due to intraday adjustments in forecast models.

There are several potential pitfalls in the rules: 1) Reliance on a specific third-party tracker (xtracker) which may have lag or discrepancies; 2) The nuanced distinction between regular replies and main feed replies; 3) Deleted posts only count if they survive for ~5 minutes, increasing the risk of resolution disputes in edge cases.

This is a highly exotic and niche market. Ordinary people do not typically predict the exact number of times a billionaire will post on social media within a specific 48-hour window. It is a classic novelty betting topic.

April 28, 2026 - April 29, 2026, the price of the 40-64 range surged from 14c to 85.5c, while the 65-89 range plummeted from 67c to 15.5c. This occurred because, as the monitoring period reached roughly 83% completion, Musk's posting frequency slowed down significantly, shifting the favored outcome decisively to the 40-64 range. April 27, 2026 - April 28, 2026, the price of the 65-89 range surged from 26.5c to 64c, while the 40-64 range plummeted from 50.5c to 15.5c. This occurred because, as the monitoring period progressed, Musk's actual posting volume accumulated faster than previous pessimistic expectations, ruling out the likelihood of very low totals. April 27, 2026, as the tracking period officially started, the probabilities for <40 and 40-64 ranges continued to rise, while the 65-89 range dropped from 32.5c to 26.5c. The market further lowered its expectations for the total number of posts based on the actual posting frequency in the initial hours. April 25, 2026 - April 27, 2026, the price of the 40-64 range increased from 37.5c to 47.5c, while the 90-114 range dropped from 20c to 8.5c. This was due to the market lowering its expectations of Musk's actual recent activity levels as the tracking period approached, judging the likelihood of exceeding 90 tweets to be significantly reduced.

The rules rely heavily on a specific third-party tracker (xtracker) and include a fuzzy ~5-minute capture window for deleted posts, while also distinguishing between 'main feed replies' and 'normal replies'. These technical nuances can cause discrepancies between tracked data and user observations, leading to a moderate risk of resolution disputes.

Betting on the exact number of social media posts a public figure makes in a specific week is a typical novelty behavioral market. It appears quite absurd and bizarre to the general public, even though such markets are somewhat popular in prediction circles due to Musk's high profile.

April 28, 2026 - April 29, 2026: The Yes price for the '240-259' bracket plummeted from a high of 47c to 13.5c. The reason is that as data accumulated into the second day, Musk's tweeting frequency stabilized at a lower level, causing the market to significantly downgrade its extremely high expectations for the weekly total. Earlier on April 28, 2026: Multiple brackets experienced significant price shifts. The '240-259' bracket surged from 19c to 47c, and '220-239' rose from 18c to 27c. These drastic movements reflect aggressive market recalibrations and hedging based on the actual tweeting velocity observed during the initial hours of the market period.

The rules exclude replies but note that replies recorded on the main feed will be counted by the tracker, which could cause resolution disputes. Furthermore, settlement heavily relies on a specific third-party tracker (xtracker.polymarket.com). Any tracker downtime or missed data (e.g., posts deleted before being captured) creates a risk of discrepancy with actual X data.

This is a typical novelty market for prediction platforms. For the general public, unless specifically incentivized, absolutely no one would care about or predict the exact number of tweets posted by the White House account in a single week, making it quite exotic.

Between 06:03 and 16:03 on April 28, 2026, the price of the '160-179' option surged from 38c to 58c, '180-199' surged from 23.5c to 44c, and '200+' surged from 14.5c to 45c. This suggests market expectations of a significantly higher posting frequency, likely due to breaking news or an intensive promotional campaign for a specific event. Between April 27 and April 28, 2026, lower posting brackets (e.g., 40-59, 60-79) experienced brief and anomalous price spikes (reaching ~24c) at 16:03 on April 28, before quickly retreating. This was likely due to mispricing from illiquidity or large market orders sweeping the book.