{"source":"kalshi","id":"KXINXDUD-26JUL21H1600","ticker":"KXINXDUD-26JUL21H1600","slug":"KXINXDUD-26JUL21H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-07-21T00:00:00Z","end_date":"2026-07-28T23:00:00Z","closed_time":null,"volume":6473.14,"volume_24hr":6473.14,"volume_24h_change":null,"normalized_vol_24hr":28.46347999572754,"normalized_volume":17.2082576751709,"liquidity":null,"open_interest":4623.29,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7443.28","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.42999999999999994,"top_outcome_volume_24h_change":6188.26,"updated_at":"2026-07-21T17:22:08.015088Z","fetched_at":"2026-07-21T17:22:08.015088Z","added_at":"2026-07-21T00:14:34.436259Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul21h1600","chart_24h":[284.88,299.57,306.66,306.66,366.54,373.34,379.65,641.29,1085.35,1109.02,1115.44,1130.01,1131.18,1136.87,1142.39,1318.34,1484.39,1501.6,3215.11,3478.02,3551.17,3997.75,4690.39,4794.7,5201.05,6473.14],"markets":[{"source":"kalshi","id":"KXINXDUD-26JUL21H1600-T7443.28","event_id":"KXINXDUD-26JUL21H1600","slug":"KXINXDUD-26JUL21H1600-T7443.28","question":"Will the S&P 500 be above 7443.28 on Jul 21, 2026 at 4pm EDT?","group_item_title":"Above 7443.28","description":"If the end-of-day price of the S&P 500 on July 21, 2026 is above 7443.28, 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":[0.99,0.010000000000000009],"probability":0.99,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-07-21T00:00:00Z","end_date":"2026-07-28T23:00:00Z","closed_time":"2026-07-21T20:00:00Z","volume":6473.14,"volume_24hr":6473.14,"prob_24h_change":0.42999999999999994,"volume_24h_change":6188.26,"normalized_vol_24hr":31.789121627807617,"normalized_volume":20.041770935058594,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-07-21T17:23:27.163949Z","fetched_at":"2026-07-21T17:22:08.165840Z","added_at":"2026-07-21T00:14:34.594358Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul21h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.56,0.69,0.69,0.69,0.73,0.73,0.81,0.77,0.82,0.8,0.82,0.81,0.81,0.87,0.83,0.88,0.8,0.83,0.8,0.8,0.85,0.93,0.95,0.98,0.99,0.99]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26JUL21H1600","as_of":"2026-07-21T17:35:22.592570Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 99% probability across 1 outcome","source_url":null}}