{"_meta":{"attribution":"Data aggregated by pdata.world (https://pdata.world) from 8 prediction-market venues; CC BY 4.0; source data © each venue.","canonical_url":"https://pdata.world/events/polymarket/1282899","as_of":"2026-11-02T16:23:50.967655Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"S&P 500 (SPX) Opens Up or Down on November 2?\" — 100% as of 2026-11-02 UTC. https://pdata.world/events/polymarket/1282899","source_url":"https://polymarket.com/event/spx-opens-up-or-down-on-november-2-2026"},"source":"polymarket","id":"1282899","ticker":"spx-opens-up-or-down-on-november-2-2026","slug":"spx-opens-up-or-down-on-november-2-2026","title":"S&P 500 (SPX) Opens Up or Down on November 2?","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on November 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 November 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":"2026-10-30T12:00:58Z","end_date":"2026-11-02T21:00:00Z","closed_time":null,"volume":3550.6926939999994,"volume_24hr":3548.1285940000002,"volume_24h_change":null,"normalized_vol_24hr":24.918140411376953,"normalized_volume":15.17159652709961,"liquidity":8996.50594,"open_interest":2346.408719,"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":0.35950000000000004,"top_outcome_volume_24h_change":3533.1444939999997,"updated_at":"2026-11-02T16:18:52.267983Z","fetched_at":"2026-11-02T16:18:52.267983Z","added_at":"2026-10-30T12:21:11.333011Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-november-2-2026","chart_24h":[2.5641,2.5641,14.9841,14.9841,79.9841,79.9841,79.9841,114.28492,114.28492,114.28492,119.339257,180.44703099999998,446.077031,952.0933470000001,1435.644342,1965.623262,2464.400762,2463.118712,3210.827941,3444.828503,3537.038594,3548.128594],"kind":"live","mutually_exclusive":false,"markets_total":1,"markets":[{"source":"polymarket","id":"6417689","event_id":"1282899","slug":"spx-opens-up-or-down-on-november-2-2026","question":"S&P 500 (SPX) Opens Up or Down on November 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 November 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 November 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":"2026-10-30T12:00:58Z","end_date":"2026-11-02T21:00:00Z","closed_time":null,"result":null,"volume":3550.6926939999994,"volume_24hr":3548.1285940000002,"prob_24h_change":0.35950000000000004,"volume_24h_change":3533.1444939999997,"normalized_vol_24hr":28.406091690063477,"normalized_volume":19.608428955078125,"liquidity":8996.50594,"categories":["Finance"],"countries":[],"updated_at":"2026-11-02T16:18:52.763651Z","fetched_at":"2026-11-02T16:18:52.763651Z","added_at":"2026-10-30T12:21:11.512185Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-november-2-2026/spx-opens-up-or-down-on-november-2-2026","event_title":"S&P 500 (SPX) Opens Up or Down on November 2?","chart_24h":[0.64,0.67,0.865,0.845,0.86,0.88,0.9,0.935,0.935,0.91,0.855,0.88,0.945,0.95,0.9745,0.9525,0.977,0.992,0.9995,0.9995]}]}