TOTAL VOLUME:
$154.6b
24H VOL:
$333,432,169
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,971,286,090
419,492
Markets across
40,634
events
MATCHED EVENTS:
4,654
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 5, 11:59 PM EST
Kalshi
This set of markets tracks the performance of broadline retail advertising expenditures for a specific month, comparing them against the same period in the previous year. The index provides a clear indicator of whether advertising spending has increased or decreased relative to the prior year, with different thresholds defining various levels of growth.
All markets in this event are determined by the Carbon Arc Broadline Retail Ad Spend index for September 2026, reported on a year-over-year basis where 100 represents equal spending to the same month in the prior year. Markets resolve to 'Yes' if the reported index value exceeds specific thresholds ranging from 109 to 133. The determining value is the first report published by Carbon Arc, and any subsequent corrections or revisions after market settlement will not alter the outcome. The index measures growth (values above 100) or decline (values below 100) in broadline retail advertising spend compared to the previous year's September. Kalshi explicitly states no affiliation with Carbon Arc, and all trademarks remain property of their respective owners.
Currently, prediction market odds reflect a different perspective than many traditional analyst forecasts regarding the retail ad spend market. While some analysts predict a moderate increase in ad spending due to economic conditions, this market suggests a more cautious outlook. It’s important to remember that analyst forecasts are often based on models and surveys, whereas this market represents the collective judgment of individuals putting their capital at risk. Discrepancies can arise from differing interpretations of data or varying levels of confidence in economic indicators.
On Kalshi, this market is priced through a continuous double auction, where traders submit bids and asks for contracts representing different outcomes. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders are constantly adjusting their prices based on new information and their own analysis, creating a dynamic and efficient price discovery process. The market depth, displayed on the dashboard, shows the volume available at different price levels, indicating potential support and resistance.
This market resolves around Oct 13, 2026, with the outcome confirmed once the actual broadline retail ad spend for September is verifiable from credible public reporting. The final settlement will be based on data released by a recognized industry source, ensuring an objective and transparent determination of the result. Traders will then be paid out based on whether their predictions aligned with the reported ad spend figures. It's important to monitor news and economic data releases leading up to the resolution date, as these could influence the market.
Several signals or events could significantly move this market before its resolution. Major economic reports, such as consumer confidence indices or retail sales figures, would likely have a substantial impact. Unexpected changes in interest rates or inflation could also shift expectations regarding consumer spending and, consequently, ad spend. Furthermore, any significant news related to major retailers – earnings reports, strategic announcements, or supply chain disruptions – could influence trading activity in this market. Monitoring these factors will be crucial for understanding potential price movements.