KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedSelected book midpoint
Above 100 · —
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Stored price
Above 98 50%Market line of 9 lines
Above 98 50%Market quality
26 / 100
Low quality24h Volume
$47.9
Open interest
$357.1
Low open interestBid / Ask
— / —
Above 100Spread
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Market data
Updated 5 minutes ago
Oct 1, 26, 4:00 AM UTCNov 7, 26, 3:29 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 30m (informational)
Market depth · Above 100
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Manifold MarketsRules
If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 98 , then the market resolves to Yes.
Settles via:Carbon Arc
- For purposes of this market, determination will resolve on finalized Carbon Arc values recorded at 11:59 p.m. ET on the 4th calendar day after the end of the month covered by this market. For example, finalized Carbon Arc values for August will be recorded at 11:59 p.m. ET on September 4th. The index measures year-over-year change, where 100 means Costco Credit Card Spend was equal to the same month last year. Values above 100 indicate growth and values below 100 indicate decline: for example, 103 = 3% more spend than year prior, 97 = 3% decline from year prior. The index is measured by Carbon Arc's aggregated U.S. credit and debit card transaction panel, matched to the same period of the prior year. The panel updates daily as new data arrives. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the underlying company. All trademarks, logos, and brand names are the property of their respective owners.
Rules for each outcome
- Above 100
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 100 , then the market resolves to Yes.
- Above 102
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 102 , then the market resolves to Yes.
- Above 98
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 98 , then the market resolves to Yes.
- Above 101
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 101 , then the market resolves to Yes.
- Above 104
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 104 , then the market resolves to Yes.
- Above 94
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 94 , then the market resolves to Yes.
- Above 96
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 96 , then the market resolves to Yes.
- Above 97
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 97 , then the market resolves to Yes.
- Above 99
- If the Carbon Arc Costco Credit Card Spend (October 2026) for October 2026 is above 99 , then the market resolves to Yes.
