IPO Quiet Period Rules and Timeline
Days from announced deal to first trade, US listings since January 2025ranking ·
2026-08-19 · 7×3
The three clocks, dated, for the largest US listings since January 2025table ·
2026-08-19 · 10×7
Days from announced deal to first trade, US listings since January 2025
Days from announced deal to first trade, US listings since January 2025
| bucket | deals_in_bucket | share_pct |
|---|---|---|
| under 30 days | 148 | 29 |
| 30 to 59 days | 108 | 21.1 |
| 60 to 89 days | 68 | 13.3 |
| 90 to 119 days | 55 | 10.8 |
| 120 to 149 days | 29 | 5.7 |
| 150 to 179 days | 19 | 3.7 |
| 180 days or more | 84 | 16.4 |
the exact SQL behind every number
WITH deals AS
(
SELECT
ticker,
max(listing_date) AS listed_on,
min(announced_date) AS announced_on
FROM global_markets.stocks_ipos
WHERE listing_date >= '2025-01-01'
AND listing_date < '2026-06-01'
AND final_issue_price > 0
AND ticker NOT IN ('SPCX')
GROUP BY ticker
HAVING announced_on > toDate('2015-01-01')
AND announced_on < listed_on
)
SELECT
multiIf(b = 0, 'under 30 days',
b = 6, '180 days or more',
concat(toString(b * 30), ' to ', toString(b * 30 + 29), ' days')) AS bucket,
deals_in_bucket,
round(100 * deals_in_bucket / sum(deals_in_bucket) OVER (), 1) AS share_pct
FROM
(
SELECT
least(intDiv(dateDiff('day', announced_on, listed_on), 30), 6) AS b,
count() AS deals_in_bucket
FROM deals
GROUP BY b
)
ORDER BY b
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