{"slug":"spacex-nasdaq-100-index-add","qid":"auction_series","label":"Every SPCX closing cross since the June 12 listing: size, share of the day, and the official close it set","post_title":"SpaceX Joins the Nasdaq-100: The Index-Add Trade","post_url":"/blog/spacex-nasdaq-100-index-add#q-auction_series","columns":["session","auction_shares_m","auction_pct_of_day","day_matched_shares_m","official_close","code8_prints"],"rows":[{"session":"2026-06-12","auction_shares_m":7.85,"auction_pct_of_day":1.5,"day_matched_shares_m":522.3,"official_close":160.95,"code8_prints":2},{"session":"2026-06-15","auction_shares_m":3.99,"auction_pct_of_day":1.6,"day_matched_shares_m":257,"official_close":192.5,"code8_prints":2},{"session":"2026-06-16","auction_shares_m":4.98,"auction_pct_of_day":1.5,"day_matched_shares_m":322.6,"official_close":201.8,"code8_prints":1},{"session":"2026-06-17","auction_shares_m":3.69,"auction_pct_of_day":1.8,"day_matched_shares_m":201.7,"official_close":191.82,"code8_prints":1},{"session":"2026-06-18","auction_shares_m":52.28,"auction_pct_of_day":19.2,"day_matched_shares_m":272.2,"official_close":185,"code8_prints":1},{"session":"2026-06-22","auction_shares_m":3.97,"auction_pct_of_day":2.3,"day_matched_shares_m":169.2,"official_close":154.6,"code8_prints":2},{"session":"2026-06-23","auction_shares_m":3.2,"auction_pct_of_day":2,"day_matched_shares_m":157.3,"official_close":156.11,"code8_prints":1},{"session":"2026-06-24","auction_shares_m":2.58,"auction_pct_of_day":3.4,"day_matched_shares_m":76.1,"official_close":154.54,"code8_prints":1},{"session":"2026-06-25","auction_shares_m":2.98,"auction_pct_of_day":4.8,"day_matched_shares_m":62.2,"official_close":153,"code8_prints":1},{"session":"2026-06-26","auction_shares_m":39.56,"auction_pct_of_day":31.1,"day_matched_shares_m":127.3,"official_close":153.23,"code8_prints":1},{"session":"2026-06-29","auction_shares_m":8.63,"auction_pct_of_day":10.6,"day_matched_shares_m":81.4,"official_close":164.19,"code8_prints":1},{"session":"2026-06-30","auction_shares_m":5.92,"auction_pct_of_day":7.2,"day_matched_shares_m":82,"official_close":170.86,"code8_prints":1},{"session":"2026-07-01","auction_shares_m":5.38,"auction_pct_of_day":4.8,"day_matched_shares_m":112.4,"official_close":157.54,"code8_prints":1},{"session":"2026-07-02","auction_shares_m":2.58,"auction_pct_of_day":4.2,"day_matched_shares_m":61.6,"official_close":162,"code8_prints":1},{"session":"2026-07-06","auction_shares_m":74.94,"auction_pct_of_day":39.7,"day_matched_shares_m":188.9,"official_close":160.42,"code8_prints":1}],"shape":"series","sql":"SELECT\n    toDate(toTimeZone(sip_timestamp, 'America/New_York')) AS session,\n    round(toFloat64(maxIf(size, has(conditions, 8))) / 1e6, 2) AS auction_shares_m,\n    round(100 * toFloat64(maxIf(size, has(conditions, 8))) / toFloat64(sumIf(size, NOT hasAny(conditions, [15, 16, 38]))), 1) AS auction_pct_of_day,\n    round(toFloat64(sumIf(size, NOT hasAny(conditions, [15, 16, 38]))) / 1e6, 1) AS day_matched_shares_m,\n    round(toFloat64(argMaxIf(price, (size, sip_timestamp), has(conditions, 8))), 2) AS official_close,\n    countIf(has(conditions, 8)) AS code8_prints\nFROM global_markets.stocks_trades\nWHERE ticker = 'SPCX'\n  AND sip_timestamp >= '2026-06-12 00:00:00' AND sip_timestamp < '2026-07-07 00:00:00'\nGROUP BY session\nORDER BY session","computed_at":"2026-07-09T07:03:39.415102+00:00","elapsed":12.327713663}