Why Odd Lots Don't Set the NBBO
Round lot size for a basket of familiar tickers, from the latest closeranking ·
2026-08-22 · 9×3
Listed names averaging above $250 a share, by monthseries ·
2026-08-22 · 24×2
How many listed names sit in each round lot tierranking ·
2026-08-22 · 3×3
AAPL trade sizes on the 27 April 2026 sessionranking ·
2026-08-22 · 4×3
What Is the NBBO? National Best Bid and Offer
NBBO updates per session: four heavily traded names vs. two thin small capsseries ·
2026-08-22 · 6×5
Exchange stamp to SIP stamp: the consolidation step, in microsecondsranking ·
2026-08-22 · 4×3
The smallest size the NBBO will show: six names across the price tiersranking ·
2026-08-22 · 6×4
KO: ten consecutive NBBO updates from 1:30 p.m. ET on a recent sessionseries ·
2026-08-22 · 10×7
GME, 2024-05-14: NBBO updates and trades per minute across a five-minute LULD pauseseries ·
2026-08-22 · 15×3
AAPL: average NBBO updates per minute by half-hour bucket (ET, 4 a.m. to 8 p.m.)series ·
2026-08-22 · 32×3
What Is a Trade-Through? ISO Orders Explained
Where 30 minutes of AAPL prints landed, by venueranking ·
2026-08-20 · 12×3
Distinct venues printing AAPL inside the same second, minute by minuteseries ·
2026-08-20 · 30×3
Share of prints by trade size: AAPL against KOranking ·
2026-08-20 · 5×4
Sale conditions that mark protection-rule exceptionstable ·
2026-08-20 · 11×3
The Vendor Display Rule: SEC Rule 603(c)
Consolidated spread vs single venue spread, AAPL, June 17 2026series ·
2026-08-10 · 90×4
Where AAPL trades printed, June 17 2026, 10:00 to 11:30 ETranking ·
2026-08-10 · 17×3
Which venue held the national best bid in AAPL, June 17 2026, 10:00 to 11:30 ETranking ·
2026-08-10 · 16×3
SIP Feeds vs Direct Exchange Feeds
Which venues sat on the bid side of the quote record, KO on June 16, 2026ranking ·
2026-08-09 · 17×3
Quote update traffic across five household tickers, 10:00 to 11:00 a.m. ET on June 16, 2026table ·
2026-08-09 · 5×5
US equity exchanges that feed the consolidated tapetable ·
2026-08-09 · 18×4
Venue clock to consolidated tape clock, KO quotes on June 16, 2026series ·
2026-08-09 · 15×4
Midpoint Peg Orders Explained: Half-Cent Fills
Sub-penny print share by reporting route, off exchange against lit exchangeranking ·
2026-08-09 · 6×3
Share of trades printed off the penny grid, 10:00 to 11:00 a.m. ET, June 17 2026ranking ·
2026-08-09 · 6×3
BLK quoted spread and quote activity by half-hour ET bucket, June 17 2026series ·
2026-08-09 · 16×3
Average NBBO spread and the midpoint saving, 10:00 to 11:00 a.m. ET, June 17 2026ranking ·
2026-08-09 · 6×3
Level 1 vs Level 2 vs Level 3 Market Data
Executed volume by price level: the traded ladder (KO, 30 minutes)table ·
2026-08-07 · 63×3
Level 1 top of book: quoted spread across a full session (AAPL, June 17 2026)series ·
2026-08-07 · 32×3
Top-of-book message rate, minute by minute (NVDA, one hour)series ·
2026-08-07 · 60×3
Top-of-book spread and quote message count by name (10:00 to 11:00 a.m. ET)ranking ·
2026-08-07 · 5×3
Why Stock Quotes Are Delayed 15 Minutes
How often the last price changes, minute by minute (June 2026)ranking ·
2026-08-06 · 6×3
The 15 minute gap across six household tickers (June 2026)ranking ·
2026-08-06 · 6×3
How far SPY travels in 15 minutes, by hour of the session (June 2026)series ·
2026-08-06 · 7×4
Live price against a 15 minute delayed view, one SPY sessionseries ·
2026-08-06 · 37×5
Microstructure Deep-Dive: June 29, 2026
Raw vs SIP-counted volume, applying the derived exclusion setscalar ·
2026-07-26 · 1×424.79
One day of trades: session check plus the size of every printscalar ·
2026-07-26 · 1×80
SPY's median quoted spread by half hour, 4:00 am to 8:00 pm ETseries ·
2026-07-26 · 32×3
SPY under the microscope: nanosecond gaps, the spread two ways, quote qualityscalar ·
2026-07-26 · 1×123.98
Completeness probe: FINRA short-volume file coverage, June 26-30series ·
2026-07-26 · 3×6
The whole NBBO stream in one row: QQQ and NVDA pinned by namescalar ·
2026-07-26 · 1×5505.38
NBBO quote updates for eight heavily-quoted tickers (millions)ranking ·
2026-07-26 · 8×2
How many of the ten busiest minutes fall outside the open and the closescalar ·
2026-07-26 · 1×41
The largest single prints of June 29 (dictionary-excluded codes stripped)series ·
2026-07-26 · 9×7
The exclusion set, derived from the tape's own code dictionary (one row)scalar ·
2026-07-26 · 1×33
The receipt: CAG's closing auction and its code-15 re-report, side by sidescalar ·
2026-07-26 · 1×661.69
The ten busiest minutes of the trade tape (millions of prints)ranking ·
2026-07-26 · 10×2
Round lot size for a basket of familiar tickers, from the latest close
Round lot size for a basket of familiar tickers, from the latest close
| ticker | close_price | round_lot_size |
|---|---|---|
| NVR | 6305.86 | 10 |
| COST | 935 | 40 |
| SPY | 765.91 | 40 |
| MSFT | 481.8 | 40 |
| AAPL | 312.08 | 40 |
| NVDA | 218.05 | 100 |
| BKNG | 210.15 | 100 |
| KO | 90.51 | 100 |
| F | 14.08 | 100 |
the exact SQL behind every number
SELECT
ticker,
round(toFloat64(any(close)), 2) AS close_price,
multiIf(any(close) <= 250, 100,
any(close) <= 1000, 40,
any(close) <= 10000, 10,
1) AS round_lot_size
FROM global_markets.stocks_daily_aggs
WHERE date = (SELECT max(date) FROM global_markets.stocks_daily_aggs WHERE date >= today() - 10)
AND ticker IN ('F', 'KO', 'NVDA', 'AAPL', 'MSFT', 'SPY', 'COST', 'BKNG', 'NVR')
GROUP BY ticker
ORDER BY close_price DESC
More from this analysisWhy Odd Lots Don't Set the NBBO
AAPL trade sizes on the 27 April 2026 session
ranking 4×3
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How many listed names sit in each round lot tier
ranking 3×3
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Listed names averaging above $250 a share, by month
series 24×2
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Where AAPL trades printed, June 17 2026, 10:00 to 11:30 ET
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