Online Sportsbook Ad Spend in October

October 2026 If the Carbon Arc Online Sportsbook Ad Spend, October 2026, for October 2026 is above X then the market resolves to Yes. For purposes of this market, determination will resolve on finalized Carbon Arc values recorded at 11:59 p.m. ET on the 5th 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 5th. The index measures year-over-year, where 100 means Online Sportsbook Ad S