gap_trace
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 2026-10-03, from why-stop-orders-fill-below-the-stop-price.
| session_date | open_vs_prev_close_pct | low_vs_prev_close_pct | close_vs_prev_close_pct |
|---|---|---|---|
| 2022-02-24 | -2.59 | -2.68 | 1.5 |
| 2022-06-13 | -2.55 | -4.23 | -3.8 |
| 2022-06-16 | -2.29 | -3.99 | -3.31 |
| 2022-09-13 | -2.22 | -4.64 | -4.35 |
| 2022-10-13 | -2.06 | -2.37 | 2.64 |
| 2024-08-05 | -3.99 | -4.25 | -2.91 |
| 2025-01-27 | -2.16 | -2.19 | -1.41 |
| 2025-04-03 | -3.44 | -4.93 | -4.93 |
| 2025-04-04 | -2.43 | -5.9 | -5.85 |
| 2025-04-07 | -3.18 | -4.65 | -0.18 |
| 2025-04-10 | -3 | -7.16 | -4.38 |
| 2026-03-03 | -1.65 | -2.44 | -0.88 |
- Rows × columns
- 12 × 4
- Period covered
- to
- 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 |
|---|---|---|---|
session_date |
date | 2022-02-24 to 2026-03-03 | |
open_vs_prev_close_pct |
number | -3.99 to -1.65 | percent |
low_vs_prev_close_pct |
number | -7.16 to -2.19 | percent |
close_vs_prev_close_pct |
number | -5.85 to 2.64 | 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 sessions AS
(
SELECT
date,
toFloat64(any(open)) AS open_px,
toFloat64(any(low)) AS low_px,
toFloat64(any(close)) AS close_px
FROM global_markets.stocks_daily_aggs
WHERE ticker = 'SPY'
AND date >= '2021-01-01'
AND date < '2026-10-01'
GROUP BY date
),
with_prev AS
(
SELECT
date,
open_px,
low_px,
close_px,
any(close_px) OVER (ORDER BY date ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING) AS prev_close
FROM sessions
),
ranked AS
(
SELECT
date,
round((open_px / prev_close - 1) * 100, 2) AS open_vs_prev_close_pct,
round((low_px / prev_close - 1) * 100, 2) AS low_vs_prev_close_pct,
round((close_px / prev_close - 1) * 100, 2) AS close_vs_prev_close_pct
FROM with_prev
WHERE prev_close > 0
ORDER BY open_vs_prev_close_pct ASC
LIMIT 12
)
SELECT
toString(date) AS session_date,
open_vs_prev_close_pct,
low_vs_prev_close_pct,
close_vs_prev_close_pct
FROM ranked
ORDER BY date
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