Every weekday month-end since 2020: filings indexed on the month's last calendar day

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 2026-07-26, from SEC EDGAR Index Gap: the Missing Month-Ends.

Rows × columns

55 × 2

Period covered

2020-01-31 to 2026-06-30

Computed

2026-07-26

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

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 2026-07-26, and the query below is what returned them.

WITH month_ends AS (
    SELECT arrayJoin(arrayMap(i -> toLastDayOfMonth(addMonths(toDate('2020-01-01'), i)), range(78))) AS me
),
daily AS (
    SELECT filing_date, uniqExact(accession_number) AS filings
    FROM global_markets.stocks_sec_edgar_index
    WHERE filing_date >= toDate('2020-01-01') AND filing_date <= toDate('2026-06-30')
    GROUP BY filing_date
)
SELECT toString(e.me) AS month_end, toUInt32(ifNull(d.filings, 0)) AS filings
FROM month_ends AS e
LEFT JOIN daily AS d ON d.filing_date = e.me
WHERE toDayOfWeek(e.me) <= 5
ORDER BY e.me