One session of SPY prints, sorted into trade size buckets
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 2026-08-07, from How ETF Creation and Redemption Works.
| bucket | trade_count | pct_of_prints | pct_of_volume |
|---|---|---|---|
| 1 to 99 | 806032 | 83.01 | 34.17 |
| 100 to 999 | 161615 | 16.64 | 39.63 |
| 1,000 to 9,999 | 3290 | 0.34 | 8.2 |
| 10,000 and up | 106 | 0.01 | 18 |
- Rows × columns
- 4 × 4
- 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 |
|---|---|---|---|
bucket |
text | 4 distinct values (1 to 99, 1,000 to 9,999, 10,000 and up…) | |
trade_count |
number | 106 to 806,032 | count |
pct_of_prints |
number | 0.01 to 83.01 | percent |
pct_of_volume |
number | 8.2 to 39.63 | 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
tape AS
(
SELECT size
FROM global_markets.stocks_trades
WHERE ticker = 'SPY'
AND sip_timestamp >= '2026-06-17 13:30:00'
AND sip_timestamp < '2026-06-17 20:00:00'
AND size > 0
),
day_total AS
(
SELECT
sum(size) AS all_shares,
count() AS all_prints
FROM tape
)
SELECT
multiIf(t.size < 100, '1 to 99',
t.size < 1000, '100 to 999',
t.size < 10000, '1,000 to 9,999',
'10,000 and up') AS bucket,
count() AS trade_count,
round(100 * count() / any(d.all_prints), 2) AS pct_of_prints,
round(100 * sum(t.size) / any(d.all_shares), 2) AS pct_of_volume
FROM tape AS t
CROSS JOIN day_total AS d
GROUP BY bucket
ORDER BY min(t.size)