TOTAL VOLUME:
$154.3b
24H VOL:
$219,029,434
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,869,293,526
411,051
Markets across
40,408
events
MATCHED EVENTS:
4,377
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
The markets track United Airlines' credit card spending trends for September 2026 using an index that compares spending to the same month in the previous year. Higher index values indicate greater growth compared to the prior year, with each market having a specific threshold that determines its outcome.
All markets resolve based on the Carbon Arc United Airlines Credit Card Spend index for September 2026, with each market requiring the index to exceed a specific threshold (ranging from 97 to 115). The index reflects year-over-year changes in spending, where 100 indicates no change from the prior year, values above 100 show growth, and values below 100 indicate decline. Determination for all markets uses the first value reported by Carbon Arc, and any corrections or revisions after settlement do not affect the outcome. The index is derived from Carbon Arc's aggregated U.S. credit and debit card transaction panel, updated daily with new data. Kalshi explicitly states it has no official affiliation with United Airlines or any associated entities, and all trademarks remain the property of their respective owners.
Compared to traditional analyst forecasts, prediction market odds for this market often reflect a more immediate, crowd-sourced view of expectations. Analysts may publish detailed reports with median estimates, while traders on Kalshi continuously adjust prices based on new economic indicators, consumer behavior trends, and airline performance news. The gap between these two can highlight where public betting sentiment diverges from institutional outlooks.
This market resolves around Oct 14, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final determination will rely on official financial disclosures from United Airlines, after which Kalshi will finalize the market based on the reported credit card spend figures for September. Traders should monitor earnings releases and regulatory filings for resolution.
Key signals that could shift prices in this market include monthly consumer spending reports, changes in travel demand, credit card interest rate adjustments, and any major announcements from United Airlines regarding customer loyalty programs or partnership changes. Economic indicators such as inflation data or shifts in discretionary spending may also influence trader sentiment as Oct 14, 2026 approaches.