{"source":"polymarket","id":"698583","ticker":"spx-opens-up-or-down-on-july-14-2026","slug":"spx-opens-up-or-down-on-july-14-2026","title":"S&P 500 (SPX) Opens Up or Down on July 14?","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on July 14 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 14 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":"2026-07-13T12:00:13Z","end_date":"2026-07-14T20:00:00Z","closed_time":null,"volume":9041.141317,"volume_24hr":9041.141316999998,"volume_24h_change":null,"normalized_vol_24hr":33.40721893310547,"normalized_volume":16.89548110961914,"liquidity":895.2513,"open_interest":5382.304694,"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":0.345,"top_outcome_prob_24h_change":-0.16000000000000003,"top_outcome_volume_24h_change":9041.141316999998,"updated_at":"2026-07-14T03:56:45.416281Z","fetched_at":"2026-07-14T03:56:45.416281Z","added_at":"2026-07-13T12:41:59.854413Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-july-14-2026","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,401.396319,411.396319,411.396319,1108.379843,1470.503286,1809.263286,2614.3132859999996,4264.204395999999,6492.616182999998,7032.606182999998,9041.141316999998],"markets":[{"source":"polymarket","id":"2905242","event_id":"698583","slug":"spx-opens-up-or-down-on-july-14-2026","question":"S&P 500 (SPX) Opens Up or Down on July 14?","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 14 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 14 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":[0.345,0.655],"probability":0.345,"spread":0.01,"active":true,"closed":false,"start_date":"2026-07-13T12:00:13Z","end_date":"2026-07-14T20:00:00Z","closed_time":null,"volume":9041.141317,"volume_24hr":9041.141316999998,"prob_24h_change":-0.16000000000000003,"volume_24h_change":9041.141316999998,"normalized_vol_24hr":36.362308502197266,"normalized_volume":23.27651023864746,"liquidity":1171.5092,"categories":["Finance"],"countries":[],"updated_at":"2026-07-14T03:57:50.135504Z","fetched_at":"2026-07-14T03:56:45.634537Z","added_at":"2026-07-13T12:42:00.130150Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-july-14-2026/spx-opens-up-or-down-on-july-14-2026","event_title":"S&P 500 (SPX) Opens Up or Down on July 14?","chart_24h":[0.505,0.5,0.5,0.49,0.5,0.495,0.55,0.47,0.47,0.42,0.385,0.415,0.42,0.405,0.39,0.265,0.345]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/698583","as_of":"2026-07-14T04:12:14.507361Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"S&P 500 (SPX) Opens Up or Down on July 14?\" — top market at 34% probability across 1 outcome","source_url":null}}