Ex-date vs. record date by year: share identical, and the median gap in calendar days

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 2026-08-22, from Ex-Dividend Date vs. Record Date: Same Day?.

Rows × columns

12 × 4

Computed

2026-08-22

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 2026-08-22, and the query below is what returned them.

SELECT toYear(ex_dividend_date) AS year,
       count() AS dividends,
       round(100.0 * countIf(ex_dividend_date = record_date) / count(), 1) AS pct_ex_equals_record,
       round(quantileDeterministic(0.5)(dateDiff('day', ex_dividend_date, record_date), cityHash64(id)), 0) AS median_gap_days
FROM global_markets.stocks_dividends
WHERE currency = 'USD'
  AND ex_dividend_date >= '2015-01-01'
  AND ex_dividend_date <= today()
  AND record_date IS NOT NULL
GROUP BY year
ORDER BY year