{"slug":"does-opra-have-depth-of-book","qid":"quote_traffic","label":"Distinct AAPL option contracts trading, by hour of the session","post_title":"Does OPRA Have Depth of Book? Feed Explained","post_url":"/blog/does-opra-have-depth-of-book#q-quote_traffic","columns":["et_hour","contracts_trading"],"rows":[{"et_hour":"09:00","contracts_trading":827},{"et_hour":"10:00","contracts_trading":922},{"et_hour":"11:00","contracts_trading":811},{"et_hour":"12:00","contracts_trading":747},{"et_hour":"13:00","contracts_trading":677},{"et_hour":"14:00","contracts_trading":855},{"et_hour":"15:00","contracts_trading":858},{"et_hour":"16:00","contracts_trading":2}],"shape":"ranking","sql":"SELECT\n    formatDateTime(toTimeZone(window_start, 'America/New_York'), '%H:00') AS et_hour,\n    countDistinct(ticker)                                                 AS contracts_trading\nFROM global_markets.options_minute_aggs\nWHERE ticker LIKE 'O:AAPL2%'\n  AND window_start >= '2026-09-16 00:00:00'\n  AND window_start <  '2026-09-17 00:00:00'\nGROUP BY et_hour\nORDER BY et_hour","computed_at":"2026-10-08T15:25:26.646432+00:00","elapsed":0.002049891}