The board leader, day by day: daily relative volume and open-to-close change (last 15 sessions)
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 2026-09-20, from Unusual Volume Stocks This Week, Measured.
| session_date | session_label | rvol_day | day_pct | peak_rvol_day |
|---|---|---|---|---|
| 2026-08-28 | Aug 28 | 0.6 | -15.1 | 838.3 |
| 2026-08-31 | Aug 31 | 9.5 | 10 | 838.3 |
| 2026-09-01 | Sep 1 | 0.8 | 3.8 | 838.3 |
| 2026-09-02 | Sep 2 | 0.7 | 1.2 | 838.3 |
| 2026-09-03 | Sep 3 | 0.3 | -5.8 | 838.3 |
| 2026-09-04 | Sep 4 | 2 | -5.2 | 838.3 |
| 2026-09-08 | Sep 8 | 0.6 | -4.8 | 838.3 |
| 2026-09-09 | Sep 9 | 0.9 | -2.3 | 838.3 |
| 2026-09-10 | Sep 10 | 0.3 | 2.3 | 838.3 |
| 2026-09-11 | Sep 11 | 0.5 | -0.8 | 838.3 |
| 2026-09-14 | Sep 14 | 0.3 | -1.7 | 838.3 |
| 2026-09-15 | Sep 15 | 339.7 | 82.1 | 838.3 |
| 2026-09-16 | Sep 16 | 838.3 | 50.2 | 838.3 |
| 2026-09-17 | Sep 17 | 24.9 | -31.6 | 838.3 |
| 2026-09-18 | Sep 18 | 40.3 | -37 | 838.3 |
- Rows × columns
- 15 × 5
- 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 | 2026-08-28 to 2026-09-18 | |
session_label |
text | 15 distinct values (Aug 28, Aug 31, Sep 1…) | |
rvol_day |
number | 0.3 to 838.3 | |
day_pct |
number | -37 to 82.1 | percent |
peak_rvol_day |
number | every row is 838.3 |
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 sess AS (
SELECT ticker,
toDate(toTimeZone(window_start, 'America/New_York')) AS d,
sum(toFloat64(volume)) AS vol,
sum(toFloat64(close) * toFloat64(volume)) AS dollars,
argMin(toFloat64(open), toTimeZone(window_start, 'America/New_York')) AS day_open,
argMax(toFloat64(close), toTimeZone(window_start, 'America/New_York')) AS day_close
FROM global_markets.delayed_stocks_minute_aggs
WHERE window_start >= now() - INTERVAL 70 DAY
AND toHour(toTimeZone(window_start, 'America/New_York')) * 60 + toMinute(toTimeZone(window_start, 'America/New_York')) >= 570
AND toHour(toTimeZone(window_start, 'America/New_York')) * 60 + toMinute(toTimeZone(window_start, 'America/New_York')) < 960
AND ticker NOT IN ('SPCX')
GROUP BY ticker, d
),
cal AS (
SELECT d, row_number() OVER (ORDER BY d DESC) AS rn
FROM (SELECT DISTINCT d FROM sess)
),
per_name AS (
SELECT s.ticker AS ticker,
avgIf(s.vol, c.rn <= 5) AS adv_recent,
avgIf(s.vol, c.rn BETWEEN 6 AND 45) AS adv_base,
sumIf(s.dollars, c.rn <= 5) AS dollar_recent,
countIf(c.rn <= 5) AS recent_sessions,
countIf(c.rn BETWEEN 6 AND 45) AS base_sessions
FROM sess s INNER JOIN cal c ON s.d = c.d
GROUP BY s.ticker
HAVING adv_base > 100000 AND dollar_recent >= 500000000 AND recent_sessions = 5 AND base_sessions >= 35
),
leader AS (
SELECT ticker, adv_base
FROM per_name
ORDER BY adv_recent / adv_base DESC, ticker ASC
LIMIT 1
),
path AS (
SELECT formatDateTime(s.d, '%Y-%m-%d') AS session_date,
formatDateTime(s.d, '%b %e') AS session_label,
s.vol / l.adv_base AS rvol_day,
100.0 * (s.day_close / s.day_open - 1) AS day_pct
FROM sess s
INNER JOIN cal c ON s.d = c.d
INNER JOIN leader l ON s.ticker = l.ticker
WHERE c.rn <= 15
)
SELECT session_date,
session_label,
round(rvol_day, 1) AS rvol_day,
round(day_pct, 1) AS day_pct,
round(max(rvol_day) OVER (), 1) AS peak_rvol_day
FROM path
ORDER BY session_date ASC