{"source":"kalshi","id":"KXINXDUD-26JUL29H1600","ticker":"KXINXDUD-26JUL29H1600","slug":"KXINXDUD-26JUL29H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-07-29T00:00:00Z","end_date":"2026-08-05T23:00:00Z","closed_time":null,"volume":2334.98,"volume_24hr":2334.98,"volume_24h_change":null,"normalized_vol_24hr":21.028297424316406,"normalized_volume":13.442580223083496,"liquidity":null,"open_interest":1453.83,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7428.78","top_outcome_probability":0.57,"top_outcome_prob_24h_change":0.57,"top_outcome_volume_24h_change":2334.98,"updated_at":"2026-07-29T08:04:42.443607Z","fetched_at":"2026-07-29T08:04:42.443607Z","added_at":"2026-07-29T00:12:13.664696Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul29h1600","chart_24h":[0.0,100.0,341.23,482.81,532.81,752.91,1244.37,1613.38,1706.5,1729.43,2243.99,2334.98],"markets":[{"source":"kalshi","id":"KXINXDUD-26JUL29H1600-T7428.78","event_id":"KXINXDUD-26JUL29H1600","slug":"KXINXDUD-26JUL29H1600-T7428.78","question":"Will the S&P 500 be above 7428.78 on Jul 29, 2026 at 4pm EDT?","group_item_title":"Above 7428.78","description":"If the end-of-day price of the S&P 500 on July 29, 2026 is above 7428.78, 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":[0.57,0.43000000000000005],"probability":0.57,"spread":0.040000000000000036,"active":true,"closed":false,"start_date":"2026-07-29T00:00:00Z","end_date":"2026-08-05T23:00:00Z","closed_time":"2026-07-29T20:00:00Z","volume":2334.98,"volume_24hr":2334.98,"prob_24h_change":0.57,"volume_24h_change":2334.98,"normalized_vol_24hr":24.368654251098633,"normalized_volume":15.656037330627441,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-07-29T08:06:08.308429Z","fetched_at":"2026-07-29T08:04:42.535252Z","added_at":"2026-07-29T00:12:13.866321Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul29h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.0,0.64,0.64,0.5,0.52,0.56,0.49,0.5,0.5,0.53,0.61,0.57]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26JUL29H1600","as_of":"2026-07-29T08:08:55.634018Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 57% probability across 1 outcome","source_url":null}}