September 2025 Monthly Aggregate Trading Data

Spread Execution Metrics

At Bid/Ask29.89%
Inside NBBO excluding Midpoint9.57%
At Midpoint*60.54%

Average Executed Notional Block Data

>$200K8.38%
$100K – $200K3.93%

Platform Latency

p-ValueMicroseconds
p0 12
p25 18
p50 19
p75 23
p90 31
p95 41
p99 188

Conditional Order Statistics

  • Median response time: 0.960 milliseconds
  • Average firm-up rate (orders): 87.50%
  • Conditional percentage of ADV: 3.45

VWAP/Trajectory Cross Order Statistics

  • VWAP Block ADV (shares): 80,181,989
  • VWAP Block Unique Symbols Traded: 4,856
  • VWAP Slice ADV (shares): 41,347,472
  • VWAP Slice Unique Symbols Traded: 3,724

Odd Lot Statistics

Odd Lot percentage of ADV 22.86%

Average Trade Size

  • 49 shares

VWAP Order Time Percentage

1 min – 2 max45.28%
1 min – 1 max24.71%
5 min – 5 max13.78%
1 min – 5 max9.41%
Other6.82%

VWAP Executed Volume By Market Cap

Large Cap56.56%
Mid Cap29.49%
Small Cap13.95%

VWAP Executed Symbols by Market Cap

Large Cap1,075
Mid Cap1,233
Small Cap2,612

VWAP Breakdown

Open to Counterparty44.46%
Open Only to Self-Match55.54%
Contra Matched10.97%
Self-Matched89.03%

Executions by Trade Size

Trade BasketAvg Trade SizeVolume
1 – 4993264.86%
500 – 9996549.26%
1,000 – 1,9991,2897.45%
2,000 – 4,9992,9236.71%
5,000 – 9,9996,7353.97%
≥ 10,00023,6287.74%
Trade BasketAvg Trade SizeVolume
All49100.00%
≥ 5001,51635.14%
≥ 1,0002,87225.88%
≥ 2,0005,70918.43%
≥ 5,00012,56711.72%
≥ 10,00022.6287.74%

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September 2025 Aggregate Trade Data

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*VWAP Volume not included in Midpoint Volume Calculation
Figures may not total to 100% due to rounding
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