{"source":"polymarket","id":"654895","ticker":"spx-opens-up-or-down-on-july-2-2026","slug":"spx-opens-up-or-down-on-july-2-2026","title":"S&P 500 (SPX) Opens Up or Down on July 2?","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on July 2 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 July 2 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","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","active":true,"closed":false,"start_date":"2026-07-01T12:00:12Z","end_date":"2026-07-02T20:00:00Z","closed_time":null,"volume":29010.670369000007,"volume_24hr":29000.670369,"volume_24h_change":null,"normalized_vol_24hr":32.56199264526367,"normalized_volume":21.739463806152344,"liquidity":78691.0987,"open_interest":13967.51535,"categories":["Finance"],"tags":[{"id":"102683","slug":"spx","label":"SPX"},{"id":"102127","slug":"up-or-down","label":"Up or Down"},{"id":"102281","slug":"daily","label":"Daily"},{"id":"102682","slug":"indicies","label":"Indicies"},{"id":"120","slug":"finance","label":"Finance"},{"id":"102169","slug":"hide-from-new","label":"Hide From New"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"","top_outcome_probability":0.9995,"top_outcome_prob_24h_change":0.48450000000000004,"top_outcome_volume_24h_change":28990.670369,"updated_at":"2026-07-02T19:53:07.328634Z","fetched_at":"2026-07-02T19:53:07.328634Z","added_at":"2026-07-01T12:11:40.995495Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-july-2-2026","chart_24h":[10.0,10.0,25.0,274.990906,574.971297,848.249221,1336.239221,1336.239221,2071.227024,2202.655594,2436.01845,2587.93019,3435.902198,3521.6304560000003,4144.120456,4417.689685,4866.127185,5961.209567000001,6653.871934999999,7616.021515000001,7907.014975000002,8304.921392,8819.287260000001,9568.886856000001,10221.658815,11238.033098000002,11349.820089000003,12227.697945000004,13416.328940000003,17331.304748000006,27676.530369,27728.400368999995,28398.330369,28398.330369,28398.330369,28398.330369,29010.670369,29010.670369,29010.670369,29000.670369],"markets":[{"source":"polymarket","id":"2755729","event_id":"654895","slug":"spx-opens-up-or-down-on-july-2-2026","question":"S&P 500 (SPX) Opens Up or Down on July 2?","group_item_title":null,"description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on July 2 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 July 2 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","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","outcomes":["Up","Down"],"outcome_prices":[0.9995,0.0005],"probability":0.9995,"spread":0.001,"active":true,"closed":false,"start_date":"2026-07-01T12:00:12Z","end_date":"2026-07-02T20:00:00Z","closed_time":null,"volume":29010.670369000007,"volume_24hr":29000.670369,"prob_24h_change":0.48450000000000004,"volume_24h_change":28990.670369,"normalized_vol_24hr":34.741050720214844,"normalized_volume":30.405550003051758,"liquidity":78691.11035,"categories":["Finance"],"countries":[],"updated_at":"2026-07-02T19:53:47.109553Z","fetched_at":"2026-07-02T19:37:50.362870Z","added_at":"2026-07-01T12:11:41.057687Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-july-2-2026/spx-opens-up-or-down-on-july-2-2026","event_title":"S&P 500 (SPX) Opens Up or Down on July 2?","chart_24h":[0.515,0.47,0.64,0.465,0.49,0.48,0.48,0.455,0.415,0.48,0.595,0.665,0.685,0.665,0.55,0.69,0.63,0.5,0.395,0.29,0.325,0.46,0.465,0.51,0.395,0.465,0.495,0.485,0.835,0.977,0.9995,0.9995,0.9995,0.9995,0.9995,0.9995,0.9995,0.9995,0.9995,0.9995]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/654895","as_of":"2026-07-02T20:03:54.832515Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"S&P 500 (SPX) Opens Up or Down on July 2?\" — top market at 100% probability across 1 outcome","source_url":null}}