Evening volume share and the gap to the official close
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 2026-09-28, from Tradegate vs Xetra: Hours and Prices.
| symbol | post_close_volume_pct | post_close_move_pct |
|---|---|---|
| MSFT | 12.7 | 0.191 |
| SPY | 12.59 | 0.352 |
| KO | 7.21 | 0.633 |
| NVDA | 7.05 | 0.616 |
| AAPL | 6.92 | 0.237 |
| JNJ | 4.79 | 0.038 |
- Rows × columns
- 6 × 3
- 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 |
|---|---|---|---|
symbol |
text | 6 distinct values (AAPL, JNJ, KO…) | |
post_close_volume_pct |
number | 4.79 to 12.7 | percent |
post_close_move_pct |
number | 0.038 to 0.633 | 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.
SELECT
t.symbol AS symbol,
t.post_close_volume_pct AS post_close_volume_pct,
round(abs(100 * (b.last_evening_close / t.closing_print_price - 1)), 3) AS post_close_move_pct
FROM
(
SELECT
ticker AS symbol,
round(100 * sumIf(toFloat64(size), NOT has(conditions, 8)
AND toHour(toTimeZone(sip_timestamp, 'America/New_York')) * 60
+ toMinute(toTimeZone(sip_timestamp, 'America/New_York')) >= 960)
/ sum(toFloat64(size)), 2) AS post_close_volume_pct,
toFloat64(argMaxIf(price, size, has(conditions, 8))) AS closing_print_price
FROM global_markets.stocks_trades
WHERE ticker IN ('AAPL', 'MSFT', 'NVDA', 'SPY', 'KO', 'JNJ')
AND sip_timestamp >= toDateTime('2026-06-10 08:00:00')
AND sip_timestamp < toDateTime('2026-06-11 00:00:00')
AND NOT hasAny(conditions, [15, 16, 38])
GROUP BY ticker
HAVING countIf(has(conditions, 8)) > 0
) AS t
INNER JOIN
(
SELECT
ticker AS symbol,
toFloat64(argMaxIf(close, window_start,
toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York')) >= 960)) AS last_evening_close
FROM global_markets.delayed_stocks_minute_aggs
WHERE ticker IN ('AAPL', 'MSFT', 'NVDA', 'SPY', 'KO', 'JNJ')
AND window_start >= toDateTime('2026-06-10 08:00:00')
AND window_start < toDateTime('2026-06-11 00:00:00')
GROUP BY ticker
HAVING countIf(toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York')) >= 960) > 0
) AS b ON b.symbol = t.symbol
ORDER BY post_close_volume_pct DESC
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