Consolidated spread vs single venue spread, AAPL, June 17 2026
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 2026-08-10, from The Vendor Display Rule: SEC Rule 603(c).
| et_time | consolidated_spread_bps | single_venue_spread_bps | spread_gap_bps |
|---|---|---|---|
| 10:00 | 0.9 | 1.51 | 0.61 |
| 10:01 | 0.91 | 1.33 | 0.43 |
| 10:02 | 0.52 | 1.02 | 0.49 |
| 10:03 | 1.06 | 1.33 | 0.28 |
| 10:04 | 0.66 | 1.12 | 0.46 |
| 10:05 | 0.39 | 0.79 | 0.4 |
| 10:06 | 0.43 | 0.85 | 0.42 |
| 10:07 | 0.28 | 0.86 | 0.58 |
| 10:08 | 0.43 | 0.86 | 0.43 |
| 10:09 | 0.52 | 0.91 | 0.4 |
| 10:10 | 0.56 | 0.86 | 0.3 |
| 10:11 | 0.21 | 0.52 | 0.31 |
| 10:12 | 0.27 | 0.65 | 0.38 |
| 10:13 | 0.49 | 0.79 | 0.3 |
| 10:14 | 0.2 | 0.56 | 0.36 |
| 10:15 | 0.26 | 0.68 | 0.43 |
| 10:16 | 0.24 | 0.64 | 0.4 |
| 10:17 | 0.48 | 0.79 | 0.31 |
| 10:18 | 0.15 | 0.58 | 0.42 |
| 10:19 | 0.25 | 0.61 | 0.36 |
| 10:20 | 0.02 | 0.43 | 0.42 |
| 10:21 | 0.15 | 0.59 | 0.44 |
| 10:22 | 0.35 | 0.78 | 0.43 |
| 10:23 | 0.53 | 0.85 | 0.33 |
| 10:24 | 0.29 | 0.72 | 0.43 |
| 10:25 | 0.4 | 0.76 | 0.36 |
| 10:26 | 0.33 | 0.61 | 0.28 |
| 10:27 | 0.25 | 0.61 | 0.36 |
| 10:28 | 0.25 | 0.78 | 0.53 |
| 10:29 | 0.49 | 0.88 | 0.39 |
| 10:30 | 0.26 | 0.87 | 0.61 |
| 10:31 | 0.52 | 0.93 | 0.41 |
| 10:32 | 0.55 | 0.93 | 0.38 |
| 10:33 | 0.39 | 0.68 | 0.29 |
| 10:34 | 0.46 | 0.81 | 0.34 |
| 10:35 | 0.14 | 0.76 | 0.62 |
| 10:36 | 0.46 | 0.87 | 0.42 |
| 10:37 | 0.33 | 0.85 | 0.52 |
| 10:38 | 0.3 | 0.78 | 0.48 |
| 10:39 | 0.54 | 0.97 | 0.43 |
| 10:40 | 0.52 | 1.03 | 0.5 |
| 10:41 | 0.01 | 0.61 | 0.6 |
| 10:42 | 0.26 | 0.75 | 0.49 |
| 10:43 | 0.43 | 0.86 | 0.42 |
| 10:44 | 0.57 | 0.89 | 0.32 |
| 10:45 | 0.32 | 0.63 | 0.3 |
| 10:46 | 0.25 | 0.61 | 0.36 |
| 10:47 | -1.39 | -0.48 | 0.91 |
| 10:48 | 0.36 | 1.14 | 0.77 |
| 10:49 | 0.35 | 0.83 | 0.49 |
| 10:50 | 0.5 | 0.91 | 0.41 |
| 10:51 | 0.61 | 0.95 | 0.35 |
| 10:52 | 0.42 | 0.88 | 0.46 |
| 10:53 | 0.48 | 0.81 | 0.33 |
| 10:54 | 0.43 | 0.82 | 0.4 |
| 10:55 | 0.22 | 0.61 | 0.39 |
| 10:56 | 0.47 | 0.77 | 0.31 |
| 10:57 | 0.46 | 0.72 | 0.26 |
| 10:58 | 0.39 | 0.73 | 0.34 |
| 10:59 | 0.25 | 0.78 | 0.53 |
| 11:00 | 0.04 | 0.57 | 0.53 |
| 11:01 | 0.22 | 0.57 | 0.35 |
| 11:02 | 0.31 | 0.65 | 0.34 |
| 11:03 | 0.3 | 0.66 | 0.37 |
| 11:04 | 0.38 | 0.71 | 0.33 |
| 11:05 | -0.01 | 0.62 | 0.63 |
| 11:06 | 0.19 | 0.6 | 0.41 |
| 11:07 | 0.2 | 0.62 | 0.42 |
| 11:08 | 0.54 | 0.88 | 0.34 |
| 11:09 | 0.48 | 0.78 | 0.3 |
| 11:10 | 0.52 | 0.8 | 0.28 |
| 11:11 | 0.38 | 0.73 | 0.35 |
| 11:12 | 0.42 | 0.72 | 0.3 |
| 11:13 | 0.45 | 0.71 | 0.27 |
| 11:14 | 0.43 | 0.75 | 0.32 |
| 11:15 | 0.1 | 0.42 | 0.32 |
| 11:16 | 0.47 | 0.85 | 0.38 |
| 11:17 | 0.48 | 0.86 | 0.38 |
| 11:18 | 0.29 | 0.72 | 0.44 |
| 11:19 | 0.41 | 0.8 | 0.38 |
| 11:20 | 0.59 | 0.93 | 0.34 |
| 11:21 | 0.5 | 0.75 | 0.25 |
| 11:22 | 0.57 | 0.83 | 0.26 |
| 11:23 | 0.32 | 0.68 | 0.35 |
| 11:24 | 0.48 | 0.83 | 0.35 |
| 11:25 | 0.31 | 0.66 | 0.35 |
| 11:26 | 0.47 | 0.79 | 0.31 |
| 11:27 | 0.37 | 0.73 | 0.37 |
| 11:28 | 0.41 | 0.74 | 0.33 |
| 11:29 | 0.27 | 0.58 | 0.31 |
- Rows × columns
- 90 × 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 |
|---|---|---|---|
et_time |
date | 10:00 to 11:29 | |
consolidated_spread_bps |
number | -1.39 to 1.06 | |
single_venue_spread_bps |
number | -0.48 to 1.51 | |
spread_gap_bps |
number | 0.25 to 0.91 |
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.
the exact SQL behind every number
WITH venue_snapshot AS
(
SELECT
toStartOfSecond(sip_timestamp) AS snap,
toUInt32(bid_exchange) AS exchange_id,
max(toFloat64(bid_price)) AS venue_bid,
min(toFloat64(ask_price)) AS venue_ask
FROM global_markets.cache_stocks_quotes
WHERE ticker = 'AAPL'
AND sip_timestamp >= '2026-06-17 14:00:00'
AND sip_timestamp < '2026-06-17 15:30:00'
AND bid_price > 0
AND ask_price > bid_price
AND (toFloat64(ask_price) - toFloat64(bid_price)) / toFloat64(bid_price) < 0.01
GROUP BY snap, exchange_id
),
per_snapshot AS
(
SELECT
toStartOfMinute(toTimeZone(snap, 'America/New_York')) AS minute_et,
avg(20000 * (venue_ask - venue_bid) / (venue_ask + venue_bid)) AS one_venue_bps,
20000 * (min(venue_ask) - max(venue_bid)) / (min(venue_ask) + max(venue_bid)) AS consolidated_bps
FROM venue_snapshot
GROUP BY snap
)
SELECT
formatDateTime(minute_et, '%H:%i') AS et_time,
round(avg(consolidated_bps), 2) AS consolidated_spread_bps,
round(avg(one_venue_bps), 2) AS single_venue_spread_bps,
round(avg(one_venue_bps) - avg(consolidated_bps), 2) AS spread_gap_bps
FROM per_snapshot
GROUP BY minute_et
ORDER BY minute_et
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