The complexity of the rules lies in its reliance on a specific tracker (Polymarket's xtracker) and specific types of tweets. Replies are excluded unless they appear on the main feed. Furthermore, deleted tweets count if they survive long enough (~5 mins) to be captured. These technical details could create discrepancies compared to manual observation on X.

Predicting the exact number of tweets a person posts in a week is a highly niche and entertainment-driven market. Typically, the general public or traditional financial markets do not care about such highly specific and random behavioral data.

April 14, 2026 - April 14, 2026, the price of the 280-299 option surged from 16.45c to 49.95c, and the 300-319 option fell from 74.8c to 48.1c, as the posting frequency slowed near settlement, leaving the total count hovering right on the boundary between the two brackets and causing a probability reallocation. April 14, 2026 - April 14, 2026, the price of the 320-339 option plummeted from 41.85c down to 1.0c (having earlier dropped to 9.25c), because the remaining time was insufficient to reach this bracket, effectively eliminating it as a possibility. April 14, 2026 - April 14, 2026, the price of the 300-319 option surged from 52.9c to 74.8c, as with only hours left until resolution, the total post count highly converged on this range, strongly boosting market confidence. April 13, 2026 - April 14, 2026, the price of the 320-339 option rose from 27.95c to 41.85c, as continued posting close to settlement temporarily made this bracket a likely final landing spot. April 13, 2026 - April 13, 2026, the price of the 300-319 option plummeted from 57.9c to 30.5c, as slight shifts in posting speed increased the likelihood of higher brackets, splitting the probabilities. April 13, 2026 - April 13, 2026, the price of the 340-359 option fell from 26.95c to 8.95c (and later down to 2.1c), as the remaining time to achieve this high count dwindled, cooling market expectations. April 12, 2026 - April 13, 2026, the price of the 340-359 option surged from 0.25c to 26.95c before falling back to 17.95c, driven by a massive spike in posting frequency pricing in higher totals, though expectations later converged. April 12, 2026 - April 13, 2026, the price of the 360-379 option surged from 0.15c to 15.55c before falling to 7.45c, as surging post volumes prompted bets on an extremely high final count, followed by a rational pullback. April 12, 2026 - April 13, 2026, the price of the 280-299 option plummeted from 33.0c to 0.55c before slightly bouncing to 4.2c (and later to 12c), because the overly fast posting pace led actual data to quickly blow past or approach breaking this bracket.

The title simply says 'tweets', but the rules explicitly exclude standard 'replies', which make up a massive portion of Musk's activity, creating a counter-intuitive pitfall. Additionally, resolution relies heavily on a specific custom tracker (xtracker), introducing technical risks of missed counts or downtime, especially for deleted posts.

This is a highly typical long-tail novelty market. Outside of prediction market degens, nobody naturally contemplates or calculates the exact number of times a specific celebrity posts on social media during a random week. It is purely for entertainment.

April 11, 2026 - April 14, 2026, the price of the '300-319' option surged from 5.5c to 24.5c, as the posting speed stabilized at a high level, turning it into a core favorite. April 11, 2026 - April 14, 2026, the price of the '320-339' option surged from 3.1c to 23.4c, as the actual high posting speed made it an extremely probable target via linear extrapolation. April 11, 2026 - April 14, 2026, the price of the '260-279' option plummeted from 21.5c to 5.6c, as the high-frequency weekend posting confirmed this lower bracket would be breached. April 11, 2026 - April 14, 2026, the price of the '340-359' option surged from 1.5c to 15.9c, as significantly increased posting velocity shifted market expectations upward. April 12, 2026 - April 14, 2026, the price of the '280-299' option plummeted from 21.5c to 14.7c, because accelerating volumes meant the total will likely easily surpass this bracket. April 11, 2026 - April 13, 2026, the price of the '360-379' option surged from 0.6c to 13.8c, as some bettors speculated on an extreme posting spree.

April 13, 2026 - April 14, 2026, the price of '80°F or higher' surged from 77c to approximately 92.5c, while the prices for '76-77°F' and '78-79°F' plummeted by over 15c. The reason is that as the resolution date approaches, weather forecast models have highly converged, confirming that Austin's high temperature on April 15 will break the 80°F mark. On April 13, 2026, the prices of multiple lower temperature options (68-69°F, 70-71°F, 72-73°F, 74-75°F, 76-77°F) plummeted, with drops ranging from 12c to 17.5c. The reason is that as the target date approaches, weather forecast models updated and converged, confirming that the high temperature on April 15 will reach around 80°F, thereby eliminating the likelihood of lower temperatures.

While daily weather forecasting is extremely common, establishing a prediction market for the exact high temperature of a specific inland city on a specific day down to the exact degree remains a somewhat niche and novelty topic.

April 13, 2026 - April 14, 2026: The price of the 22°C option steadily rose from 21.5c to a peak of 33.5c. This upward trend was driven by weather forecast models converging on 22°C as the most likely high temperature as the date approached. April 13, 2026 - April 14, 2026: The price of the 19°C option plummeted from 11.5c to 1.2c, and the 24°C option dropped from 19.5c to 9.5c. This occurred because the possibility of temperatures straying too far from the median was effectively ruled out by the highly accurate short-term meteorological forecasts.

Predicting the exact daily high temperature of a specific city is a niche daily weather forecast market. While not absurd, it is less mainstream compared to standard political or economic topics, giving it a moderate novelty factor.

April 13, 2026 - April 14, 2026, the price of the '20°C or higher' option fluctuated drastically between 33c and 56c. This was due to divergence in weather models regarding cloud cover and precipitation probability as the resolution date approached, causing market debate over whether temperatures would break 20°C. April 13, 2026, the price of the '18°C' option surged from 12c to 24.5c. This was due to updated short-term weather forecasting models indicating that cloud cover or light precipitation might suppress the maximum temperature to around 18°C.