{"source":"polymarket","id":"576152","ticker":"spx-opens-up-or-down-on-june-10-2026","slug":"spx-opens-up-or-down-on-june-10-2026","title":"S&P 500 (SPX) Opens Up or Down on June 10?","description":"This market will resolve to \"Up\" if the official S&P 500 Index open price for S&P 500 (SPX) on June 10 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 10 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":"2026-06-09T12:14:23.185421Z","end_date":"2026-06-10T20:00:00Z","closed_time":null,"volume":22055.121311,"volume_24hr":22055.121310999995,"volume_24h_change":null,"normalized_vol_24hr":40.39590072631836,"normalized_volume":21.964208602905273,"liquidity":3852.5753,"open_interest":5777.392434,"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"},{"id":"104181","slug":"rewards-automation-400-4pt5-50-1","label":"Rewards Automation 400, 4.5, 50 (1)"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"","top_outcome_probability":0.085,"top_outcome_prob_24h_change":-0.415,"top_outcome_volume_24h_change":22966.289746999995,"updated_at":"2026-06-10T09:03:11.525114Z","fetched_at":"2026-06-10T09:03:11.525114Z","added_at":"2026-06-09T12:18:58.770975Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-june-10-2026","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,30.612242000000002,130.282445,130.282445,130.282445,130.282445,852.9568039999999,1334.140925,1965.130925,2537.616573,2677.4565729999995,4599.651606,5118.751606,5225.771605999999,10078.414403,10811.494327,13200.84026,17583.332311,18158.988715,19719.378708999997,20279.542511999996,20731.211513999995,21885.000092999995],"markets":[{"source":"polymarket","id":"2478393","event_id":"576152","slug":"spx-opens-up-or-down-on-june-10-2026","question":"S&P 500 (SPX) Opens Up or Down on June 10?","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 10 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 10 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":[0.085,0.915],"probability":0.085,"spread":0.01,"active":true,"closed":false,"start_date":"2026-06-09T12:02:30.488357Z","end_date":"2026-06-10T20:00:00Z","closed_time":null,"volume":22966.289747,"volume_24hr":22966.289746999995,"prob_24h_change":-0.415,"volume_24h_change":22966.289746999995,"normalized_vol_24hr":41.87451171875,"normalized_volume":25.8659610748291,"liquidity":4277.2053,"categories":["Finance"],"countries":[],"updated_at":"2026-06-10T09:04:05.080370Z","fetched_at":"2026-06-10T09:03:11.551593Z","added_at":"2026-06-09T12:18:58.850134Z","url":"https://polymarket.com/event/spx-opens-up-or-down-on-june-10-2026/spx-opens-up-or-down-on-june-10-2026","event_title":"S&P 500 (SPX) Opens Up or Down on June 10?","chart_24h":[0.5,0.5,0.705,0.705,0.7,0.7,0.47,0.47,0.37,0.415,0.365,0.355,0.375,0.435,0.385,0.385,0.37,0.265,0.235,0.235,0.31,0.29,0.215,0.125]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/576152","as_of":"2026-06-10T09:05:35.137149Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"S&P 500 (SPX) Opens Up or Down on June 10?\" — top market at 8% probability across 1 outcome","source_url":null}}