{"slug":"us-premarket-and-after-hours-israel-time","qid":"spread_trace","label":"AAPL quoted spread and top-of-book size by hour, 16 September 2026","post_title":"US Premarket and After-Hours in Israel Time","post_url":"/blog/us-premarket-and-after-hours-israel-time#q-spread_trace","columns":["new_york_hour","israel_hour","avg_spread_bps","avg_top_of_book_size"],"rows":[{"new_york_hour":"04:00","israel_hour":"11:00","avg_spread_bps":9.01,"avg_top_of_book_size":259},{"new_york_hour":"05:00","israel_hour":"12:00","avg_spread_bps":8.81,"avg_top_of_book_size":218},{"new_york_hour":"06:00","israel_hour":"13:00","avg_spread_bps":7.6,"avg_top_of_book_size":190},{"new_york_hour":"07:00","israel_hour":"14:00","avg_spread_bps":6.4,"avg_top_of_book_size":270},{"new_york_hour":"08:00","israel_hour":"15:00","avg_spread_bps":4.21,"avg_top_of_book_size":238},{"new_york_hour":"09:00","israel_hour":"16:00","avg_spread_bps":2.22,"avg_top_of_book_size":247},{"new_york_hour":"10:00","israel_hour":"17:00","avg_spread_bps":1.36,"avg_top_of_book_size":228},{"new_york_hour":"11:00","israel_hour":"18:00","avg_spread_bps":1.13,"avg_top_of_book_size":233},{"new_york_hour":"12:00","israel_hour":"19:00","avg_spread_bps":0.93,"avg_top_of_book_size":269},{"new_york_hour":"13:00","israel_hour":"20:00","avg_spread_bps":0.79,"avg_top_of_book_size":388},{"new_york_hour":"14:00","israel_hour":"21:00","avg_spread_bps":1.32,"avg_top_of_book_size":263},{"new_york_hour":"15:00","israel_hour":"22:00","avg_spread_bps":1.11,"avg_top_of_book_size":296},{"new_york_hour":"16:00","israel_hour":"23:00","avg_spread_bps":4.48,"avg_top_of_book_size":458},{"new_york_hour":"17:00","israel_hour":"00:00","avg_spread_bps":3.38,"avg_top_of_book_size":182},{"new_york_hour":"18:00","israel_hour":"01:00","avg_spread_bps":8.15,"avg_top_of_book_size":610},{"new_york_hour":"19:00","israel_hour":"02:00","avg_spread_bps":6.69,"avg_top_of_book_size":157}],"shape":"ranking","sql":"SELECT\n    formatDateTime(toStartOfHour(toTimeZone(sip_timestamp, 'America/New_York')), '%H:%i') AS new_york_hour,\n    formatDateTime(toStartOfHour(toTimeZone(sip_timestamp, 'Asia/Jerusalem')), '%H:%i')   AS israel_hour,\n    round(avg(20000 * toFloat64(ask_price - bid_price) / toFloat64(ask_price + bid_price)), 2) AS avg_spread_bps,\n    round(avg(toFloat64(bid_size + ask_size)), 0)                                         AS avg_top_of_book_size\nFROM global_markets.cache_stocks_quotes\nWHERE ticker = 'AAPL'\n  AND sip_timestamp >= toDateTime('2026-09-16 08:00:00', 'UTC')\n  AND sip_timestamp <  toDateTime('2026-09-17 00:00:00', 'UTC')\n  AND bid_price > 0\n  AND ask_price > bid_price\nGROUP BY new_york_hour, israel_hour\nORDER BY new_york_hour","computed_at":"2026-10-05T15:11:03.406575+00:00","elapsed":0.002359354}