KO premarket on its latest ex-dividend morning, both references side by side
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 2026-11-07, from Ex-Dividend Date: Open Orders and Premarket.
| et_time | ex_dividend_label | vs_prior_close_pct | vs_adjusted_close_pct |
|---|---|---|---|
| 07:00 | Sep 15, 2026 | -0.92 | -0.33 |
| 07:15 | Sep 15, 2026 | -0.94 | -0.34 |
| 07:30 | Sep 15, 2026 | -1.01 | -0.42 |
| 07:45 | Sep 15, 2026 | -0.94 | -0.35 |
| 08:00 | Sep 15, 2026 | -0.85 | -0.26 |
| 08:15 | Sep 15, 2026 | -0.93 | -0.34 |
| 08:45 | Sep 15, 2026 | -0.88 | -0.29 |
| 09:00 | Sep 15, 2026 | -0.81 | -0.21 |
| 09:15 | Sep 15, 2026 | -0.96 | -0.37 |
| 09:30 | Sep 15, 2026 | -1.19 | -0.6 |
| 09:45 | Sep 15, 2026 | -1.14 | -0.55 |
- Rows × columns
- 11 × 4
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
et_time |
text | 11 distinct values (07:00, 07:15, 07:30…) | |
ex_dividend_label |
text | 1 distinct value (Sep 15, 2026) | |
vs_prior_close_pct |
number | -1.19 to -0.81 | percent |
vs_adjusted_close_pct |
number | -0.6 to -0.21 | percent |
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.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
WITH
(
SELECT max(ex_dividend_date)
FROM global_markets.stocks_dividends
WHERE ticker = 'KO'
AND cash_amount > 0
AND ex_dividend_date BETWEEN today() - 200 AND today() - 3
) AS ex_date,
(
SELECT max(toFloat64(cash_amount))
FROM global_markets.stocks_dividends
WHERE ticker = 'KO'
AND ex_dividend_date = ex_date
) AS dividend_usd,
(
SELECT toFloat64(argMax(close, date))
FROM global_markets.stocks_daily_aggs
WHERE ticker = 'KO'
AND date >= today() - 220
AND date < ex_date
) AS prior_close
SELECT
formatDateTime(toStartOfInterval(toTimeZone(window_start, 'America/New_York'), INTERVAL 15 MINUTE), '%H:%i') AS et_time,
formatDateTime(ex_date, '%b %e, %Y') AS ex_dividend_label,
round(100 * (avg(toFloat64(close)) - prior_close) / prior_close, 2) AS vs_prior_close_pct,
round(100 * (avg(toFloat64(close)) - (prior_close - dividend_usd))
/ (prior_close - dividend_usd), 2) AS vs_adjusted_close_pct
FROM global_markets.delayed_stocks_minute_aggs
WHERE ticker = 'KO'
AND window_start >= today() - 210
AND toDate(toTimeZone(window_start, 'America/New_York')) = ex_date
AND (toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York'))) >= 420
AND (toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York'))) < 600
AND volume > 0
GROUP BY et_time, ex_dividend_label
ORDER BY et_time ASC
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