{"source":"kalshi","id":"KXINXHUD-26JUL311200","ticker":"KXINXHUD-26JUL311200","slug":"KXINXHUD-26JUL311200","title":"S&P 500 Hourly Up/Down","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-07-31T15:00:00Z","end_date":"2026-07-31T19:00:00Z","closed_time":"2026-07-31T16:00:00Z","volume":1668.0,"volume_24hr":1668.0,"volume_24h_change":null,"normalized_vol_24hr":19.32879638671875,"normalized_volume":14.863512992858887,"liquidity":null,"open_interest":1568.0,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above $7451.24","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.71,"top_outcome_volume_24h_change":1363.0,"updated_at":"2026-07-31T16:02:12.241221Z","fetched_at":"2026-07-31T16:02:12.241221Z","added_at":"2026-07-31T15:04:32.738627Z","url":"https://kalshi.com/markets/kxinxhud/sp-500-hourly-updown/kxinxhud-26jul311200","chart_24h":[305.0,1668.0],"markets":[{"source":"kalshi","id":"KXINXHUD-26JUL311200-T7451.24","event_id":"KXINXHUD-26JUL311200","slug":"KXINXHUD-26JUL311200-T7451.24","question":"Will the S&P 500 be above $7451.24 at Jul 31, 2026 at 12pm EDT?","group_item_title":"Above $7451.24","description":"If the value of S&P 500 is above $7451.24 at 12:00 PM ET on July 31, 2026, then the market resolves to Yes.\n\n---\n\nThis is an Up/Down market on || Index ||: it resolves Yes if || Index || finishes higher than its reference level, and No if it finishes flat or lower. The reference level (|| Value ||) is the value of || Index || at the start of the hour. If no data is available for the period by expiration, the market resolves No.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.99,0.010000000000000009],"probability":0.99,"spread":1.0,"active":false,"closed":true,"start_date":"2026-07-31T15:00:00Z","end_date":"2026-07-31T19:00:00Z","closed_time":"2026-07-31T16:00:00Z","volume":1668.0,"volume_24hr":1668.0,"prob_24h_change":0.71,"volume_24h_change":1363.0,"normalized_vol_24hr":22.277246475219727,"normalized_volume":17.138975143432617,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-07-31T16:03:22.835832Z","fetched_at":"2026-07-31T16:02:12.251409Z","added_at":"2026-07-31T15:04:32.984236Z","url":"https://kalshi.com/markets/kxinxhud/sp-500-hourly-updown/kxinxhud-26jul311200","event_title":"S&P 500 Hourly Up/Down","chart_24h":[0.28,0.99]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXHUD-26JUL311200","as_of":"2026-07-31T19:43:54.230359Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"S&P 500 Hourly Up/Down\" — top market at 99% probability across 1 outcome","source_url":null}}