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The four 13F deadlines for the 2026 quarters

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 When Are 13F Filings Due? 2026 Deadlines.

as of series 4×7read in context →
The four 13F deadlines for the 2026 quarters — 4 rows by 7 columns, computed from US exchange, SIP and OPRA data.
quartersnapshot_dateday_45day_45_weekdayfiling_deadlinedeadline_weekdaydays_after_quarter_end
Q1 2026Mar 31, 2026May 15FriMay 15, 2026Fri45
Q2 2026Jun 30, 2026Aug 14FriAug 14, 2026Fri45
Q3 2026Sep 30, 2026Nov 14SatNov 16, 2026Mon47
Q4 2026Dec 31, 2026Feb 14SunFeb 16, 2027Tue47
Rows × columns
4 × 7
Period covered
to
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 The four 13F deadlines for the 2026 quarters, derived from the stored result.
ColumnTypeRangeNotes
quarter text 4 distinct values (Q1 2026, Q2 2026, Q3 2026…)
snapshot_date date Dec 31, 20 to Sep 30, 20
day_45 text 4 distinct values (Aug 14, Feb 14, May 15…)
day_45_weekday date Fri to Sun
filing_deadline text 4 distinct values (Aug 14, 2026, Feb 16, 2027, May 15, 2026…)
deadline_weekday date Fri to Tue
days_after_quarter_end number 45 to 47

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 
SELECT
    concat('Q', toString(toQuarter(quarter_end_date)), ' ', toString(toYear(quarter_end_date))) AS quarter,
    formatDateTime(quarter_end_date, '%b %e, %Y')      AS snapshot_date,
    formatDateTime(quarter_end_date + 45, '%b %e')     AS day_45,
    formatDateTime(quarter_end_date + 45, '%a')        AS day_45_weekday,
    formatDateTime(deadline, '%b %e, %Y')              AS filing_deadline,
    formatDateTime(deadline, '%a')                     AS deadline_weekday,
    toUInt16(dateDiff('day', quarter_end_date, deadline)) AS days_after_quarter_end
FROM
(
    SELECT
        quarter_end_date,
        arrayFilter(
            d -> (toDayOfWeek(d) <= 5)
                 AND NOT has([toDate('2026-05-25'), toDate('2026-06-19'), toDate('2026-07-03'),
                              toDate('2026-09-07'), toDate('2026-10-12'), toDate('2026-11-11'),
                              toDate('2026-11-26'), toDate('2026-12-25'), toDate('2027-01-01'),
                              toDate('2027-01-18'), toDate('2027-02-15')], d),
            arrayMap(i -> (quarter_end_date + 45) + i, range(7))
        )[1] AS deadline
    FROM
    (
        SELECT arrayJoin([toDate('2026-03-31'), toDate('2026-06-30'),
                          toDate('2026-09-30'), toDate('2026-12-31')]) AS quarter_end_date
    )
)
ORDER BY quarter_end_date

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