TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 31, 5:37 PM EST
Polymarket
This market will resolve according to the number of times NYC Mayor Zohran Mamdani (@NYCMayor), posts on X between July 24, 12:00 PM ET and July 31, 2026, 12:00 PM ET. For the purposes of this market, only main feed posts, quote posts and reposts will count. Replies will NOT count towards the total - however, replies which are recorded on the main feed will be counted by the tracker. Deleted posts will count as long as they remain available long enough to be captured by the tracker (~5 minutes). The resolution source for this market is the "Post Counter" figure for posts found at https://xtracker.polymarket.com. Individual posts can be viewed by clicking "Export Data". If the tracker does not update correctly in accordance with the rules, X itself may be used as a secondary resolution source.
This market will resolve according to the number of times NYC Mayor Zohran Mamdani (@NYCMayor), posts on X between July 24, 12:00 PM ET and July 31, 2026, 12:00 PM ET. For the purposes of this market, only main feed posts, quote posts and reposts will count. Replies will NOT count towards the total - however, replies which are recorded on the main feed will be counted by the tracker. Deleted posts will count as long as they remain available long enough to be captured by the tracker (~5 minutes). The resolution source for this market is the "Post Counter" figure for posts found at https://xtracker.polymarket.com. Individual posts can be viewed by clicking "Export Data". If the tracker does not update correctly in accordance with the rules, X itself may be used as a secondary resolution source.
Prediction markets like this one differ fundamentally from polls. While traditional polls ask respondents hypothetical questions, this market aggregates real financial commitments from traders who profit or lose based on actual outcomes. The odds here reflect traders' collective assessment of how many posts will occur, incorporating their own research, historical patterns, and real-time information. Polling averages measure opinion; market prices measure incentivized forecasts. For social media activity predictions, market-based pricing often captures behavioral patterns and platform dynamics that surveys cannot easily quantify.
On Polymarket, this market is priced through an automated market maker that converts trader buy and sell orders into real-time probability estimates. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome bucket—such as the leading 160–179 post range—has its own price, expressed as a percentage likelihood. Traders purchase shares in outcomes they believe will occur; the more capital flows into an outcome, the higher its price climbs. This continuous pricing mechanism ensures the market reflects the most current information and trader conviction available at any moment.
This market resolves around Jul 31, 2026, after the conclusion of the tracking period. The outcome is determined by counting the total number of posts published by the NYC Mayor across social media platforms during July 24–31, 2026, and verified against credible public sources. Once the final post count is confirmed, the market settles to the outcome bucket that matches the actual figure. Traders holding shares in the correct outcome receive their payout; all other positions expire worthless.
Several factors could shift odds before Jul 31, 2026. Major political events—such as municipal crises, policy announcements, or campaign activity—often prompt increased social media communication from city leadership. Changes in the Mayor's communication strategy, staff turnover, or shifts in public engagement priorities could also influence posting frequency. Historical data on mayoral social media habits during comparable weeks may emerge and reshape trader expectations. Additionally, news coverage of the Mayor's office or unexpected controversies could trigger sudden trading activity as participants reassess baseline posting behavior.