{"source":"kalshi","id":"KXINXHUD-26JUL291300","ticker":"KXINXHUD-26JUL291300","slug":"KXINXHUD-26JUL291300","title":"S&P 500 Hourly Up/Down","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-07-29T16:00:00Z","end_date":"2026-07-29T20:00:00Z","closed_time":"2026-07-29T17:00:00Z","volume":2227.43,"volume_24hr":2227.43,"volume_24h_change":null,"normalized_vol_24hr":20.177227020263672,"normalized_volume":13.279696464538574,"liquidity":null,"open_interest":273.91,"categories":["Finance"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Above $7354.91","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.6,"top_outcome_volume_24h_change":2227.43,"updated_at":"2026-07-29T17:09:17.043947Z","fetched_at":"2026-07-29T17:09:17.043947Z","added_at":"2026-07-29T16:08:59.786965Z","url":"https://kalshi.com/markets/kxinxhud/sp-500-hourly-updown/kxinxhud-26jul291300","chart_24h":[0.0,1158.51,2227.43],"markets":[{"source":"kalshi","id":"KXINXHUD-26JUL291300-T7354.91","event_id":"KXINXHUD-26JUL291300","slug":"KXINXHUD-26JUL291300-T7354.91","question":"Will the S&P 500 be above $7354.91 at Jul 29, 2026 at 1pm EDT?","group_item_title":"Above $7354.91","description":"If the value of S&P 500 is above $7354.91 at 1:00 PM ET on July 29, 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":"2026-07-29T16:00:00Z","end_date":"2026-07-29T20:00:00Z","closed_time":"2026-07-29T17:00:00Z","volume":2227.43,"volume_24hr":2227.43,"prob_24h_change":0.6,"volume_24h_change":2227.43,"normalized_vol_24hr":23.4862060546875,"normalized_volume":15.46633243560791,"liquidity":null,"categories":["Finance"],"countries":[],"updated_at":"2026-07-29T17:10:19.716678Z","fetched_at":"2026-07-29T17:09:17.055033Z","added_at":"2026-07-29T16:09:00.041494Z","url":"https://kalshi.com/markets/kxinxhud/sp-500-hourly-updown/kxinxhud-26jul291300","event_title":"S&P 500 Hourly Up/Down","chart_24h":[0.39,0.62,0.99]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXINXHUD-26JUL291300","as_of":"2026-07-29T19:31:12.041032Z","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}}