QQQ volume on the December reconstitution Friday against the rest of the month
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 2026-11-07, from How QQQ Holdings Are Weighted, and Capped.
| year | recon_friday_volume_mn | other_december_volume_mn | recon_day_ratio |
|---|---|---|---|
| 2016 | 26.3 | 23.6 | 1.11 |
| 2017 | 49.8 | 30.1 | 1.65 |
| 2018 | 141.1 | 69.7 | 2.03 |
| 2019 | 27.6 | 20.2 | 1.37 |
| 2020 | 41.2 | 25.1 | 1.64 |
| 2021 | 81.5 | 54.8 | 1.49 |
| 2022 | 68.1 | 49.1 | 1.39 |
| 2023 | 62.9 | 42.3 | 1.49 |
| 2024 | 60.1 | 28.2 | 2.13 |
| 2025 | 60.4 | 47.8 | 1.26 |
- Rows × columns
- 10 × 4
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
year |
text | 10 distinct values (2016, 2017, 2018…) | |
recon_friday_volume_mn |
number | 26.3 to 141.1 | count |
other_december_volume_mn |
number | 20.2 to 69.7 | count |
recon_day_ratio |
number | 1.11 to 2.13 | ratio or rate |
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.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
WITH dec_days AS
(
SELECT
toYear(date) AS yr,
toFloat64(volume) AS vol,
toDayOfWeek(date) = 5 AND toDayOfMonth(date) BETWEEN 15 AND 21 AS is_recon_friday
FROM global_markets.stocks_daily_aggs
WHERE ticker = 'QQQ'
AND toMonth(date) = 12
AND date >= '2016-12-01'
)
SELECT
toString(yr) AS year,
round(maxIf(vol, is_recon_friday) / 1e6, 1) AS recon_friday_volume_mn,
round(avgIf(vol, NOT is_recon_friday) / 1e6, 1) AS other_december_volume_mn,
round(maxIf(vol, is_recon_friday) / avgIf(vol, NOT is_recon_friday), 2) AS recon_day_ratio
FROM dec_days
GROUP BY yr
HAVING countIf(is_recon_friday) > 0 AND countIf(NOT is_recon_friday) > 0
ORDER BY yr
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