{"source":"kalshi","id":"KXINXDUD-26AUG18H1600","ticker":"KXINXDUD-26AUG18H1600","slug":"KXINXDUD-26AUG18H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-18T00:00:00Z","end_date":"2026-08-25T23:00:00Z","closed_time":null,"volume":1184.19,"volume_24hr":1159.21,"volume_24h_change":null,"normalized_vol_24hr":18.779874801635742,"normalized_volume":13.749693870544434,"liquidity":null,"open_interest":265.61,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7745.06","top_outcome_probability":0.19,"top_outcome_prob_24h_change":0.18,"top_outcome_volume_24h_change":1153.99,"updated_at":"2026-08-18T13:06:32.639822Z","fetched_at":"2026-08-18T13:06:32.639822Z","added_at":"2026-08-18T00:14:19.452284Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug18h1600","chart_24h":[0.0,7.0,67.23,167.13,367.51,780.2,787.2,795.63,811.25,817.3,931.32,1011.32,1011.32,1049.32,1060.32,1063.77,1123.11,1153.99],"markets":[{"source":"kalshi","id":"KXINXDUD-26AUG18H1600-T7745.06","event_id":"KXINXDUD-26AUG18H1600","slug":"KXINXDUD-26AUG18H1600-T7745.06","question":"Will the S&P 500 be above 7745.06 on Aug 18, 2026 at 4pm EDT?","group_item_title":"Above 7745.06","description":"If the end-of-day price of the S&P 500 on August 18, 2026 is above 7745.06, 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":[0.19,0.81],"probability":0.19,"spread":0.04000000000000001,"active":true,"closed":false,"start_date":"2026-08-18T00:00:00Z","end_date":"2026-08-25T23:00:00Z","closed_time":"2026-08-18T20:00:00Z","volume":1184.19,"volume_24hr":1159.21,"prob_24h_change":0.18,"volume_24h_change":1153.99,"normalized_vol_24hr":19.858051300048828,"normalized_volume":15.500309944152832,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-08-18T13:06:33.330929Z","fetched_at":"2026-08-18T13:06:33.330929Z","added_at":"2026-08-18T00:14:19.587035Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug18h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.0,0.0,0.0,0.64,0.47,0.37,0.37,0.41,0.34,0.33,0.33,0.34,0.24,0.38,0.19,0.22,0.22,0.19,0.16,0.14,0.14,0.24,0.18]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26AUG18H1600","as_of":"2026-08-18T13:07:50.772326Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 19% probability across 1 outcome","source_url":null}}