{"source":"kalshi","id":"KXINXDUD-26AUG21H1600","ticker":"KXINXDUD-26AUG21H1600","slug":"KXINXDUD-26AUG21H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-21T00:00:00Z","end_date":"2026-08-28T23:00:00Z","closed_time":null,"volume":2445.53,"volume_24hr":2445.53,"volume_24h_change":null,"normalized_vol_24hr":21.333940505981445,"normalized_volume":16.66670036315918,"liquidity":null,"open_interest":1871.08,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7641.16","top_outcome_probability":0.9,"top_outcome_prob_24h_change":0.27,"top_outcome_volume_24h_change":2269.5699999999997,"updated_at":"2026-08-21T15:07:41.931359Z","fetched_at":"2026-08-21T15:07:41.931359Z","added_at":"2026-08-21T00:38:22.680988Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug21h1600","chart_24h":[112.42,117.24,117.24,157.24,280.7,280.7,281.7,351.7,605.82,726.82,726.82,770.77,1341.5,1913.21,2082.94,2087.05,2139.7],"markets":[{"source":"kalshi","id":"KXINXDUD-26AUG21H1600-T7641.16","event_id":"KXINXDUD-26AUG21H1600","slug":"KXINXDUD-26AUG21H1600-T7641.16","question":"Will the S&P 500 be above 7641.16 on Aug 21, 2026 at 4pm EDT?","group_item_title":"Above 7641.16","description":"If the end-of-day price of the S&P 500 on August 21, 2026 is above 7641.16, 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":[0.9,0.09999999999999998],"probability":0.9,"spread":0.040000000000000036,"active":true,"closed":false,"start_date":"2026-08-21T00:00:00Z","end_date":"2026-08-28T23:00:00Z","closed_time":"2026-08-21T20:00:00Z","volume":2445.53,"volume_24hr":2445.53,"prob_24h_change":0.27,"volume_24h_change":2269.5699999999997,"normalized_vol_24hr":23.665611267089844,"normalized_volume":18.823671340942383,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-08-21T15:07:42.400008Z","fetched_at":"2026-08-21T15:07:42.400008Z","added_at":"2026-08-21T00:38:22.854229Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26aug21h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.57,0.59,0.63,0.63,0.6,0.6,0.63,0.64,0.64,0.65,0.89,0.89,0.76,0.76,0.81,0.76,0.83,0.84,0.82,0.81,0.84]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26AUG21H1600","as_of":"2026-08-21T15:08:36.800350Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 90% probability across 1 outcome","source_url":null}}