{"slug":"0dte-options-from-japan","qid":"spread_by_jst_hour","label":"Median bid-ask spread on SPY same-day contracts quoted $1-$10, by Japan Standard Time hour: July 10, 2026","post_title":"Trading US 0DTE Options From Japan","post_url":"/blog/0dte-options-from-japan#q-spread_by_jst_hour","columns":["jst_hour","et_hour","median_spread_usd","median_spread_pct_of_mid"],"rows":[{"jst_hour":"22:00","et_hour":"09:00","median_spread_usd":0.03,"median_spread_pct_of_mid":0.8},{"jst_hour":"23:00","et_hour":"10:00","median_spread_usd":0.03,"median_spread_pct_of_mid":0.89},{"jst_hour":"00:00","et_hour":"11:00","median_spread_usd":0.03,"median_spread_pct_of_mid":1},{"jst_hour":"01:00","et_hour":"12:00","median_spread_usd":0.03,"median_spread_pct_of_mid":1.57},{"jst_hour":"02:00","et_hour":"13:00","median_spread_usd":0.1,"median_spread_pct_of_mid":2.17},{"jst_hour":"03:00","et_hour":"14:00","median_spread_usd":0.11,"median_spread_pct_of_mid":2.38},{"jst_hour":"04:00","et_hour":"15:00","median_spread_usd":0.11,"median_spread_pct_of_mid":2.67}],"shape":"ranking","sql":"SELECT formatDateTime(toStartOfHour(toTimeZone(sip_timestamp, 'Asia/Tokyo')), '%H:%i') AS jst_hour,\n       formatDateTime(toStartOfHour(toTimeZone(sip_timestamp, 'America/New_York')), '%H:%i') AS et_hour,\n       round(quantileDeterministic(0.5)(toFloat64(ask_price - bid_price), toUInt64(sequence_number)), 3) AS median_spread_usd,\n       round(quantileDeterministic(0.5)(toFloat64(ask_price - bid_price) / toFloat64(bid_price + ask_price) * 200,\n                                        toUInt64(sequence_number)), 2) AS median_spread_pct_of_mid\nFROM global_markets.cache_options_quotes\nWHERE ticker LIKE 'O:SPY260710%'\n  AND sip_timestamp >= toDateTime64('2026-07-10 13:30:00', 9)\n  AND sip_timestamp < toDateTime64('2026-07-10 20:00:00', 9)\n  AND bid_price > 0\n  AND toFloat64(bid_price + ask_price) / 2 BETWEEN 1 AND 10\nGROUP BY jst_hour, et_hour\nORDER BY et_hour","computed_at":"2026-07-31T08:39:40.200147+00:00","elapsed":0.002363156}