{"source":"kalshi","id":"KXINXDUD-26JUL31H1600","ticker":"KXINXDUD-26JUL31H1600","slug":"KXINXDUD-26JUL31H1600","title":"S&P 500 Daily Up/Down","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-07-31T00:00:00Z","end_date":"2026-08-07T23:00:00Z","closed_time":null,"volume":10717.49,"volume_24hr":10686.55,"volume_24h_change":null,"normalized_vol_24hr":29.863311767578125,"normalized_volume":23.248037338256836,"liquidity":null,"open_interest":4549.42,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above 7437.63","top_outcome_probability":0.62,"top_outcome_prob_24h_change":-0.09999999999999998,"top_outcome_volume_24h_change":10238.88,"updated_at":"2026-07-31T15:48:00.520539Z","fetched_at":"2026-07-31T15:48:00.520539Z","added_at":"2026-07-31T00:13:11.774096Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul31h1600","chart_24h":[447.67,453.67,459.67,596.85,651.09,692.34,701.59,770.2,821.2,825.51,831.62,1842.58,2352.32,3896.89,4565.14,6624.13,8310.63,9693.3],"markets":[{"source":"kalshi","id":"KXINXDUD-26JUL31H1600-T7437.63","event_id":"KXINXDUD-26JUL31H1600","slug":"KXINXDUD-26JUL31H1600-T7437.63","question":"Will the S&P 500 be above 7437.63 on Jul 31, 2026 at 4pm EDT?","group_item_title":"Above 7437.63","description":"If the end-of-day price of the S&P 500 on July 31, 2026 is above 7437.63, 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":[0.62,0.38],"probability":0.62,"spread":0.030000000000000027,"active":true,"closed":false,"start_date":"2026-07-31T00:00:00Z","end_date":"2026-08-07T23:00:00Z","closed_time":"2026-07-31T20:00:00Z","volume":10717.49,"volume_24hr":10686.55,"prob_24h_change":-0.09999999999999998,"volume_24h_change":10238.88,"normalized_vol_24hr":34.437950134277344,"normalized_volume":26.80708885192871,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-07-31T15:49:06.833257Z","fetched_at":"2026-07-31T15:48:00.758978Z","added_at":"2026-07-31T00:13:11.980022Z","url":"https://kalshi.com/markets/kxinxdud/sp-500-daily-updown/kxinxdud-26jul31h1600","event_title":"S&P 500 Daily Up/Down","chart_24h":[0.72,0.72,0.74,0.74,0.68,0.68,0.7,0.8,0.77,0.77,0.74,0.79,0.76,0.78,0.81,0.81,0.8,0.8,0.72,0.69,0.58,0.46,0.54]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXDUD-26JUL31H1600","as_of":"2026-07-31T15:51:37.536958Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Daily Up/Down\" — top market at 62% probability across 1 outcome","source_url":null}}