{"source":"kalshi","id":"KXINXDUD-26SEP21H1600","ticker":"KXINXDUD-26SEP21H1600","slug":"KXINXDUD-26SEP21H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-09-19T00:00:00Z","end_date":"2026-09-28T23:00:00Z","closed_time":null,"volume":4140.54,"volume_24hr":2754.75,"volume_24h_change":null,"normalized_vol_24hr":20.142221450805664,"normalized_volume":18.785484313964844,"liquidity":null,"open_interest":2536.84,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7650.12","top_outcome_probability":0.55,"top_outcome_prob_24h_change":-0.1499999999999999,"top_outcome_volume_24h_change":1401.25,"updated_at":"2026-09-20T18:01:24.327716Z","fetched_at":"2026-09-20T18:01:24.327716Z","added_at":"2026-09-19T00:24:19.585285Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26sep21h1600","chart_24h":[1399.11,1413.74,1428.51,1431.51,1431.51,1454.65,1543.32,1587.69,1670.42,1536.33,1559.63,1519.15,1024.63,1025.44,1184.13,1622.75,1626.61,1576.61,1646.99,1891.57,1899.44,1900.5,1746.84,1786.84,1781.18,1781.54,1808.69,1821.99,1841.16,1903.19,1921.07,1921.07,2602.54,2589.85,2764.56],"kind":"live","markets":[{"source":"kalshi","id":"KXINXDUD-26SEP21H1600-T7650.12","event_id":"KXINXDUD-26SEP21H1600","slug":"KXINXDUD-26SEP21H1600-T7650.12","question":"Will the S&P 500 be above 7650.12 on Sep 21, 2026 at 4pm EDT?","group_item_title":"Above 7650.12","description":"If the end-of-day price of the S&P 500 on September 21, 2026 is above 7650.12, 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":[0.55,0.44999999999999996],"probability":0.55,"spread":0.11000000000000004,"active":true,"closed":false,"start_date":"2026-09-19T00:00:00Z","end_date":"2026-09-28T23:00:00Z","closed_time":"2026-09-21T20:00:00Z","volume":4140.54,"volume_24hr":2754.75,"prob_24h_change":-0.1499999999999999,"volume_24h_change":1401.25,"normalized_vol_24hr":21.513673782348633,"normalized_volume":21.59467315673828,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-09-20T18:01:24.425336Z","fetched_at":"2026-09-20T18:01:24.425336Z","added_at":"2026-09-19T00:24:19.915896Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26sep21h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.63,0.71,0.64,0.64,0.65,0.67,0.69,0.7,0.59,0.58,0.55,0.53,0.63,0.61,0.53,0.5,0.53,0.56,0.57,0.57,0.5,0.5,0.5,0.5,0.5,0.5,0.61,0.6,0.61,0.59,0.6,0.59,0.54,0.44,0.58]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26SEP21H1600","as_of":"2026-09-20T18:14:41.610608Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 55% probability across 1 outcome","source_url":null}}