STRASMORE/EXPLORE 2,170 QUERIES

Average daily volume before and after the 180 day mark, 2023-2024 IPOs

Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-08-06, from Do Stocks Fall When a Lockup Expires?.

as of ranking 6×4read in context →
Average daily volume before and after the 180 day mark, 2023-2024 IPOs — 6 rows by 4 columns, computed from US exchange, SIP and OPRA data.
tickeravg_volume_before_mavg_volume_after_mvolume_change_pct
ALAB3.183.6213.6
RDDT3.563.919.8
BIRK0.430.43-0.8
RBRK1.961.09-44.1
CART5.32.57-51.5
ARM24.577.97-67.6
Rows × columns
6 × 4
Computed
Completeness
No missing values
Source
US exchange, SIP and OPRA market data
Licence
Strasmore terms · free, no signup
Formats
JSON · CSV · the SQL below

What each column holds

Column definitions for Average daily volume before and after the 180 day mark, 2023-2024 IPOs, derived from the stored result.
ColumnTypeRangeNotes
ticker text 6 distinct values (ALAB, ARM, BIRK…)
avg_volume_before_m number 0.43 to 24.57 count
avg_volume_after_m number 0.43 to 7.97 count
volume_change_pct number -67.6 to 13.6 percent

Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.

the exact SQL behind every number 
WITH multiIf(
        ticker = 'ARM',  toDate('2023-09-14'),
        ticker = 'CART', toDate('2023-09-19'),
        ticker = 'BIRK', toDate('2023-10-11'),
        ticker = 'ALAB', toDate('2024-03-20'),
        ticker = 'RDDT', toDate('2024-03-21'),
        ticker = 'RBRK', toDate('2024-04-25'),
        toDate('2024-01-01')) + 180 AS lockup_mark
SELECT
    ticker,
    round(avgIf(day_volume, session_date <  lockup_mark) / 1e6, 2) AS avg_volume_before_m,
    round(avgIf(day_volume, session_date >= lockup_mark) / 1e6, 2) AS avg_volume_after_m,
    round(100 * (avgIf(day_volume, session_date >= lockup_mark)
                 / avgIf(day_volume, session_date <  lockup_mark) - 1), 1) AS volume_change_pct
FROM
(
    SELECT
        ticker,
        toDate(toTimeZone(window_start, 'America/New_York')) AS session_date,
        toFloat64(sum(volume))                               AS day_volume
    FROM global_markets.delayed_stocks_minute_aggs
    WHERE ticker IN ('ARM', 'CART', 'BIRK', 'ALAB', 'RDDT', 'RBRK')
      AND window_start >= toDateTime('2024-01-15 00:00:00')
      AND window_start <  toDateTime('2024-12-15 00:00:00')
      AND (toHour(toTimeZone(window_start, 'America/New_York')) * 60
           + toMinute(toTimeZone(window_start, 'America/New_York'))) >= 570
      AND (toHour(toTimeZone(window_start, 'America/New_York')) * 60
           + toMinute(toTimeZone(window_start, 'America/New_York'))) < 960
    GROUP BY ticker, session_date
)
WHERE session_date >= lockup_mark - 30
  AND session_date <= lockup_mark + 30
GROUP BY ticker
HAVING countIf(session_date <  lockup_mark) > 0
   AND countIf(session_date >= lockup_mark) > 0
ORDER BY volume_change_pct DESC

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