jst_clock
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 2026-10-06, from us-market-holidays-in-japan-time.
| jst_time | half_day_shares_mm | full_day_shares_mm |
|---|---|---|
| 23:30 | 4.9 | 8.3 |
| 00:00 | 4 | 5.2 |
| 00:30 | 3.8 | 3.9 |
| 01:00 | 4.5 | 3.9 |
| 01:30 | 5.5 | 4.2 |
| 02:00 | 4.1 | 2.7 |
| 02:30 | 10 | 2.5 |
| 03:00 | 2.4 | 4 |
| 03:30 | 0 | 3 |
| 04:00 | 0 | 4.2 |
| 04:30 | 0 | 3.4 |
| 05:00 | 0 | 5.5 |
| 05:30 | 0 | 12.2 |
- Rows × columns
- 13 × 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 |
|---|---|---|---|
jst_time |
text | 13 distinct values (00:00, 00:30, 01:00…) | |
half_day_shares_mm |
number | 0 to 10 | count |
full_day_shares_mm |
number | 2.5 to 12.2 | count |
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
formatDateTime(toStartOfInterval(jst, INTERVAL 30 MINUTE), '%H:%i') AS jst_time,
round(sumIf(vol, session_date = '2025-11-28') / 1e6, 1) AS half_day_shares_mm,
round(sumIf(vol, session_date = '2025-11-26') / 1e6, 1) AS full_day_shares_mm
FROM
(
SELECT
toTimeZone(window_start, 'Asia/Tokyo') AS jst,
toDate(toTimeZone(window_start, 'America/New_York')) AS session_date,
toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York')) AS et_min,
toFloat64(volume) AS vol
FROM global_markets.delayed_stocks_minute_aggs
WHERE ticker = 'SPY'
AND window_start >= '2025-11-26 14:00:00'
AND window_start < '2025-11-29 05:00:00'
)
WHERE session_date IN ('2025-11-26', '2025-11-28')
AND et_min >= 570
AND et_min < 960
GROUP BY jst_time
ORDER BY min(et_min)
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