unang_at_huling_30
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 2026-09-23, from us-stock-market-hours-philippine-time.
| slot_et | simula_pht_dst | simula_pht_standard | tapos_pht_dst | tapos_pht_standard | bahagi_ng_volume_pct |
|---|---|---|---|---|---|
| 09:30 | 21:30 | 22:30 | 22:00 | 23:00 | 11.6 |
| 10:00 | 22:00 | 23:00 | 22:30 | 23:30 | 8.42 |
| 10:30 | 22:30 | 23:30 | 23:00 | 00:00 | 7.13 |
| 11:00 | 23:00 | 00:00 | 23:30 | 00:30 | 7.33 |
| 11:30 | 23:30 | 00:30 | 00:00 | 01:00 | 5.59 |
| 12:00 | 00:00 | 01:00 | 00:30 | 01:30 | 5.39 |
| 12:30 | 00:30 | 01:30 | 01:00 | 02:00 | 4.57 |
| 13:00 | 01:00 | 02:00 | 01:30 | 02:30 | 4.81 |
| 13:30 | 01:30 | 02:30 | 02:00 | 03:00 | 4.02 |
| 14:00 | 02:00 | 03:00 | 02:30 | 03:30 | 5.33 |
| 14:30 | 02:30 | 03:30 | 03:00 | 04:00 | 6.47 |
| 15:00 | 03:00 | 04:00 | 03:30 | 04:30 | 7.48 |
| 15:30 | 03:30 | 04:30 | 04:00 | 05:00 | 21.84 |
- Rows × columns
- 13 × 6
- 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 |
|---|---|---|---|
slot_et |
text | 13 distinct values (09:30, 10:00, 10:30…) | |
simula_pht_dst |
text | 13 distinct values (00:00, 00:30, 01:00…) | |
simula_pht_standard |
text | 13 distinct values (00:00, 00:30, 01:00…) | |
tapos_pht_dst |
text | 13 distinct values (00:00, 00:30, 01:00…) | |
tapos_pht_standard |
text | 13 distinct values (00:00, 00:30, 01:00…) | |
bahagi_ng_volume_pct |
number | 4.02 to 21.84 | 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
formatDateTime(toDateTime(slot * 60, 'UTC'), '%H:%i') AS slot_et,
formatDateTime(toDateTime((slot + 720) * 60, 'UTC'), '%H:%i') AS simula_pht_dst,
formatDateTime(toDateTime((slot + 780) * 60, 'UTC'), '%H:%i') AS simula_pht_standard,
formatDateTime(toDateTime((slot + 750) * 60, 'UTC'), '%H:%i') AS tapos_pht_dst,
formatDateTime(toDateTime((slot + 810) * 60, 'UTC'), '%H:%i') AS tapos_pht_standard,
round(100 * sum(toFloat64(volume)) / sum(sum(toFloat64(volume))) OVER (), 2) AS bahagi_ng_volume_pct
FROM
(
SELECT
intDiv(toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York')), 30) * 30 AS slot,
(toHour(toTimeZone(window_start, 'America/New_York')) * 60
+ toMinute(toTimeZone(window_start, 'America/New_York'))) AS et_minutes,
volume
FROM global_markets.delayed_stocks_minute_aggs
WHERE ticker = 'SPY'
AND window_start >= today() - 75
AND window_start < today() - 2
)
WHERE et_minutes >= 570 AND et_minutes < 960
GROUP BY slot
ORDER BY slot
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