{"$schema":"https://gamma-api.polymarket.com/schemas/Market.json","id":"6079845","question":"S&P 500 (SPX) Opens Up or Down on October 26?","conditionId":"0x39974593d05dadee812388d7285acb33095d159bdcd88b79cb620a03a0d308da","slug":"spx-opens-up-or-down-on-october-26-2026","resolutionSource":"https://www.wsj.com/market-data/stocks","endDate":"2026-10-26T20:00:00Z","startDate":"2026-10-23T12:00:59Z","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/s-and-p-500-1e40af6979.png","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on October 26 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nThis market will resolve to \"Down\" if the official S&P 500 Index open price for S&P 500 (SPX) on October 26 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day.\n\nE.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.\n\nIf the two prices are exactly equal, this market will resolve 50-50. Note that all figures will be rounded to the nearest cent using standard rounding.\n\nIf SPX does not trade at all during the regular session, the market will resolve 50-50.\n\nIf either of the relevant days are shortened (for example, due to a market holiday schedule), the official open/close price published by S&P 500 Index for that shortened session will still be used for resolution.\n\nIf the previous trading day has no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price.\n\nThe resolution source for this market is the Wall Street Journal, specifically the Open/Close values published by the WSJ under \"Historical Prices\".\n\nUS: https://www.wsj.com/market-data/stocks\nEMEA: https://www.wsj.com/market-data/stocks/emea\nASIA: https://www.wsj.com/market-data/stocks/asia","outcomes":"[\"Up\", \"Down\"]","outcomePrices":"[\"1\", \"0\"]","volume":"14840.894329000002","active":true,"closed":true,"marketMakerAddress":"","createdAt":"2026-10-23T12:00:51.27622Z","updatedAt":"2026-10-27T04:52:50.484877Z","closedTime":"2026-10-26 22:36:10.47133+00","new":false,"featured":false,"submitted_by":"0xAC9930b2AE455a671b62dE86876A7e8587825294","archived":false,"resolvedBy":"0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7","restricted":true,"questionID":"0x39b7a351c218e7bbed1170e44ddfa67d6621d7e019b8d26005f8d6e21624ab6b","umaEndDate":"2026-10-26 22:36:10.47133+00:00:00","enableOrderBook":true,"orderPriceMinTickSize":0.001,"orderMinSize":5,"umaResolutionStatus":"resolved","volumeNum":14840.894329000002,"endDateIso":"2026-10-26","startDateIso":"2026-10-23","hasReviewedDates":true,"volume24hr":13934.608838999999,"volume1wk":14840.894329,"volume1mo":14840.894329,"volume1yr":14840.894329,"clobTokenIds":"[\"91784533110149125837178481266364941917227709510541767855532450049063808079954\", \"114962291393848165346328202794013477163573390574222527283990208234274233223099\"]","comboStatus":"disabled","umaBond":"250","umaReward":"0.6","volume24hrClob":13934.608838999999,"volume1wkClob":14840.894329,"volume1moClob":14840.894329,"volume1yrClob":14840.894329,"volumeClob":14840.894329000002,"makerBaseFee":1000,"takerBaseFee":1000,"acceptingOrders":false,"negRisk":false,"ready":false,"funded":false,"acceptingOrdersTimestamp":"2026-10-23T12:00:59Z","cyom":false,"approved":true,"rewardsMinSize":20,"rewardsMaxSpread":4.5,"spread":0.001,"automaticallyResolved":true,"oneDayPriceChange":0.2495,"lastTradePrice":0.999,"bestBid":0.999,"bestAsk":1,"automaticallyActive":true,"clearBookOnStart":false,"manualActivation":false,"negRiskOther":false,"umaResolutionStatuses":"[\"proposed\", \"proposed\"]","pendingDeployment":false,"deploying":false,"deployingTimestamp":"2026-10-23T12:00:51.624664Z","rfqEnabled":false,"eventStartTime":"2026-10-26T13:30:00Z","holdingRewardsEnabled":false,"feesEnabled":true,"feeType":"zero_fees","feeSchedule":{"exponent":1,"rate":0,"takerOnly":true,"rebateRate":0},"fallbackResolutionType":"equal_split","version":"v1"}