STRASMORE/EXPLORE 2,191 QUERIES

by_weekday

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 2026-09-11, from which-stocks-have-weekly-options.

as of ranking 6×2read in context →
by_weekday — 6 rows by 2 columns, computed from US exchange, SIP and OPRA data.
bucketunderlyings
A. Monday26
B. Tuesday6
C. Wednesday33
D. Thursday6
E. Other Friday (weekly)691
F. Third Friday (monthly)5475
Rows × columns
6 × 2
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 by_weekday, derived from the stored result.
ColumnTypeRangeNotes
bucket text 6 distinct values (A. Monday, B. Tuesday, C. Wednesday…)
underlyings number 6 to 5,475

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
    multiIf(
        toDayOfWeek(expiration_date) = 5
            AND toDayOfMonth(expiration_date) BETWEEN 15 AND 21, 'F. Third Friday (monthly)',
        toDayOfWeek(expiration_date) = 5,                       'E. Other Friday (weekly)',
        toDayOfWeek(expiration_date) = 4,                       'D. Thursday',
        toDayOfWeek(expiration_date) = 3,                       'C. Wednesday',
        toDayOfWeek(expiration_date) = 2,                       'B. Tuesday',
                                                                'A. Monday') AS bucket,
    uniqExact(underlying_symbol)                                            AS underlyings
FROM global_markets.options_greeks
WHERE date >= today() - 35
  AND date < today()
  AND expiration_date < today() + 60
  AND toDayOfWeek(expiration_date) <= 5
  AND volume > 0
  AND underlying_symbol NOT IN ('SPCX')
GROUP BY bucket
ORDER BY bucket

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