{"source":"kalshi","id":"KXINXDUD-26SEP29H1600","ticker":"KXINXDUD-26SEP29H1600","slug":"KXINXDUD-26SEP29H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-09-29T00:00:00Z","end_date":"2026-10-06T23:00:00Z","closed_time":null,"volume":2788.13,"volume_24hr":2788.13,"volume_24h_change":null,"normalized_vol_24hr":19.198165893554688,"normalized_volume":16.991561889648438,"liquidity":null,"open_interest":2581.12,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7683.93","top_outcome_probability":0.4,"top_outcome_prob_24h_change":-0.14,"top_outcome_volume_24h_change":2543.13,"updated_at":"2026-09-29T05:19:06.672068Z","fetched_at":"2026-09-29T05:19:06.672068Z","added_at":"2026-09-29T00:33:31.885990Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26sep29h1600","chart_24h":[245.0,2480.72,2546.72,2642.72,2659.17,2725.45,2787.13],"kind":"live","markets":[{"source":"kalshi","id":"KXINXDUD-26SEP29H1600-T7683.93","event_id":"KXINXDUD-26SEP29H1600","slug":"KXINXDUD-26SEP29H1600-T7683.93","question":"Will the S&P 500 be above 7683.93 on Sep 29, 2026 at 4pm EDT?","group_item_title":"Above 7683.93","description":"If the end-of-day price of the S&P 500 on September 29, 2026 is above 7683.93, 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":[0.4,0.6],"probability":0.4,"spread":0.009999999999999953,"active":true,"closed":false,"start_date":"2026-09-29T00:00:00Z","end_date":"2026-10-06T23:00:00Z","closed_time":"2026-09-29T20:00:00Z","volume":2788.13,"volume_24hr":2788.13,"prob_24h_change":-0.14,"volume_24h_change":2543.13,"normalized_vol_24hr":20.044212341308594,"normalized_volume":19.593292236328125,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-09-29T05:19:07.140640Z","fetched_at":"2026-09-29T05:19:07.140640Z","added_at":"2026-09-29T00:33:32.071677Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26sep29h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.54,0.5,0.5,0.5,0.44,0.43,0.45,0.4]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26SEP29H1600","as_of":"2026-09-29T05:32:37.581552Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 40% probability across 1 outcome","source_url":null}}