{"source":"kalshi","id":"KXINXDUD-26AUG20H1600","ticker":"KXINXDUD-26AUG20H1600","slug":"KXINXDUD-26AUG20H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-20T00:00:00Z","end_date":"2026-08-27T23:00:00Z","closed_time":null,"volume":3932.49,"volume_24hr":3697.62,"volume_24h_change":null,"normalized_vol_24hr":24.755680084228516,"normalized_volume":18.89186668395996,"liquidity":null,"open_interest":2301.54,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7707.98","top_outcome_probability":0.08,"top_outcome_prob_24h_change":-0.56,"top_outcome_volume_24h_change":3594.0,"updated_at":"2026-08-20T15:53:32.193726Z","fetched_at":"2026-08-20T15:53:32.193726Z","added_at":"2026-08-20T00:43:49.302538Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug20h1600","chart_24h":[103.62,132.38,146.77,176.36,277.24,860.0,860.0,861.37,909.37,921.37,1514.27,1762.27,2060.33,2150.57,2636.0,2897.67,3457.23],"markets":[{"source":"kalshi","id":"KXINXDUD-26AUG20H1600-T7707.98","event_id":"KXINXDUD-26AUG20H1600","slug":"KXINXDUD-26AUG20H1600-T7707.98","question":"Will the S&P 500 be above 7707.98 on Aug 20, 2026 at 4pm EDT?","group_item_title":"Above 7707.98","description":"If the end-of-day price of the S&P 500 on August 20, 2026 is above 7707.98, then the market resolves to Yes.\n\n---\n\nThe target value is the end-of-day/closing price of the prior week's close.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.08,0.92],"probability":0.08,"spread":0.03,"active":true,"closed":false,"start_date":"2026-08-20T00:00:00Z","end_date":"2026-08-27T23:00:00Z","closed_time":"2026-08-20T20:00:00Z","volume":3932.49,"volume_24hr":3697.62,"prob_24h_change":-0.56,"volume_24h_change":3594.0,"normalized_vol_24hr":27.70569610595703,"normalized_volume":21.328235626220703,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-08-20T15:55:52.194857Z","fetched_at":"2026-08-20T15:53:32.293959Z","added_at":"2026-08-20T00:43:49.383669Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug20h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.64,0.64,0.64,0.68,0.6,0.62,0.73,0.73,0.73,0.69,0.69,0.5,0.5,0.5,0.47,0.36,0.19,0.17,0.31,0.2,0.18]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26AUG20H1600","as_of":"2026-08-20T16:01:29.382350Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 8% probability across 1 outcome","source_url":null}}