Fast food credit card spend array index in October 2026

For purposes of this market, determination will resolve on the Carbon Arc Quick Service Restaurants Array value for the full month covered by this market, as recorded by Kalshi at 11:59 p.m. ET on the 4th calendar day after the end of that month. For example, the value for August is recorded at 11:59 p.m. ET on September 4th. Later corrections or revisions will not affect the recorded value. The reference is Carbon Arc's published full-month Quick Service Restaurants Array level: https://www.carbonarc.co/prisms?prism=e49b37cf-c5a9-4282-bba2-cd8c19c56a64. The array is the equally weighted arithmetic mean of its constituent year-over-year indices. At listing, its members are McDonald's, Starbucks, Chipotle, Wendy's and Chick-fil-A, weighted 20% each. Each constituent index is 100 when its measured value equals the same month of the previous year; the array averages these indices. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the underlying companies. All trademarks, logos, and brand names are the property of their respective owners.