{"source":"polymarket","id":"625575","ticker":"spx-opens-up-or-down-on-june-24-2026","slug":"spx-opens-up-or-down-on-june-24-2026","title":"S&P 500 (SPX) Opens Up or Down on June 24?","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on June 24 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 June 24 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":"2026-06-23T12:02:42.475907Z","end_date":"2026-06-24T20:00:00Z","closed_time":null,"volume":3171.626153,"volume_24hr":3171.6261530000006,"volume_24h_change":null,"normalized_vol_24hr":20.577417373657227,"normalized_volume":13.643827438354492,"liquidity":1980.2236,"open_interest":1687.491231,"categories":["Finance"],"tags":[{"id":"102169","slug":"hide-from-new","label":"Hide From New"},{"id":"102682","slug":"indicies","label":"Indicies"},{"id":"120","slug":"finance","label":"Finance"},{"id":"102683","slug":"spx","label":"SPX"},{"id":"102127","slug":"up-or-down","label":"Up or Down"},{"id":"102281","slug":"daily","label":"Daily"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"","top_outcome_probability":0.67,"top_outcome_prob_24h_change":0.16500000000000004,"top_outcome_volume_24h_change":3171.6261530000006,"updated_at":"2026-06-24T03:50:48.624482Z","fetched_at":"2026-06-24T03:50:48.624482Z","added_at":"2026-06-23T12:18:04.404141Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-june-24-2026","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,100.0,442.138371,1378.940862,1552.503724,1915.1176710000002,2063.71187,2183.71187,2635.7118700000005,3171.6261530000006],"markets":[{"source":"polymarket","id":"2651391","event_id":"625575","slug":"spx-opens-up-or-down-on-june-24-2026","question":"S&P 500 (SPX) Opens Up or Down on June 24?","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 June 24 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 June 24 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":[0.67,0.33],"probability":0.67,"spread":0.04,"active":true,"closed":false,"start_date":"2026-06-23T12:02:42.475907Z","end_date":"2026-06-24T20:00:00Z","closed_time":null,"volume":3171.626153,"volume_24hr":3171.6261530000006,"prob_24h_change":0.16500000000000004,"volume_24h_change":3171.6261530000006,"normalized_vol_24hr":23.570003509521484,"normalized_volume":18.017641067504883,"liquidity":1923.0796,"categories":["Finance"],"countries":[],"updated_at":"2026-06-24T03:51:34.664316Z","fetched_at":"2026-06-24T03:50:48.743290Z","added_at":"2026-06-23T12:18:04.471255Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-june-24-2026/spx-opens-up-or-down-on-june-24-2026","event_title":"S&P 500 (SPX) Opens Up or Down on June 24?","chart_24h":[0.505,0.5,0.495,0.495,0.505,0.5,0.5,0.505,0.5,0.505,0.5,0.5,0.605,0.6,0.645,0.495,0.63,0.705,0.63,0.69,0.505,0.67]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/625575","as_of":"2026-06-24T03:58:23.405205Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"S&P 500 (SPX) Opens Up or Down on June 24?\" — top market at 67% probability across 1 outcome","source_url":null}}