EXECUTIONREPORTS.COM AMENDED SEC RULE 605 / FINRA 5310.09 ENGINE
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Rule 605 Market Center Scorecard

NYSE Chicago

Reporter ID: MXCHI • Quarter: 2026Q3 • Methodology: exq-3
Status: ACTIVE
Generated: Thu, 15 Oct 2026 21:47:34 GMT
Quarter:2026Q3
Covered Orders381,385,386Across all reported tiers
Covered Shares57,897,668,184In Q3 2026
Active Tiers57Order class × notional buckets
Routing Brokers0Disclosed in 606 filings

1. Amended Rule 605 Scorecard vs. Mix-Adjusted Peers — 2026-08

Execution metrics across order classes and the 24 notional × lot categories, benchmarked against what competing market centers delivered on identical symbols.

ClassNotional × LotOrdersCovered ShFill RatePI RateNPI (bps)Peer Bench (bps)CoverageRank PctlEff SpreadSpeed <1s
Marketable Limit<$250 • Odd Lot1,427,94822,143,7464.9%6.6%1.7 bps-1.1 bps91%32nd$0.0160100.0%
Marketable Limit<$250 • Round Lot507,18062,430,3412.0%12.5%1.8 bps-2.0 bps93%28th$0.005598.4%
Marketable Limit$250–$999 • Odd Lot782,64322,760,0149.4%5.9%0.9 bps-1.4 bps79%24th$0.0210100.0%
Marketable Limit$250–$999 • Round Lot2,776,412450,675,5851.2%6.7%0.3 bps-3.3 bps96%10th$0.009699.2%
Marketable Limit$1k–$5k • Odd Lot611,84830,935,28410.8%7.4%0.4 bps-1.4 bps77%16th$0.0371100.0%
Marketable Limit$1k–$5k • Round Lot11,515,2392,354,685,7441.3%4.4%0.1 bps-1.5 bps97%10th$0.013799.7%
Marketable Limit$5k–$10k • Odd Lot97,0416,164,82413.3%11.6%0.3 bps-2.1 bps60%18th$0.0796100.0%
Marketable Limit$5k–$10k • Round Lot4,739,2411,314,725,5321.7%4.1%0.1 bps-1.0 bps89%12th$0.018499.8%
Marketable Limit$10k–$20k • Odd Lot26,8051,756,58416.2%13.6%0.2 bps-1.3 bps56%15th$0.1505100.0%
Marketable Limit$10k–$20k • Round Lot2,640,6471,128,352,0101.7%4.8%0.1 bps-1.0 bps86%13th$0.026299.3%
Marketable Limit$20k–$50k • Odd Lot3,162240,83812.2%16.7%0.2 bps0.9 bps39%16th$0.3564100.0%
Marketable Limit$20k–$50k • Round Lot1,621,8811,096,031,1611.6%5.1%-0.0 bps-0.9 bps80%12th$0.035799.1%
Marketable Limit$50k–$200k • Round Lot386,7971,017,918,5461.3%6.1%-0.3 bps-0.9 bps72%9th$0.028696.4%
Marketable Limit≥$200k • Round Lot76,429700,024,6811.1%5.9%-1.1 bps-1.3 bps16%22nd$0.0288100.0%
Non-Marketable Limit<$250 • Odd Lot29,283,680370,196,0170.7%100.0%30.4 bps90.8 bps92%71st$0.073938.2%
Non-Marketable Limit<$250 • Round Lot1,800,740222,969,5320.4%100.0%61.6 bps75.7 bps84%53rd$0.001443.3%
Non-Marketable Limit$250–$999 • Odd Lot29,148,573388,592,6711.0%100.0%10.4 bps42.1 bps79%24th$0.043345.5%
Non-Marketable Limit$250–$999 • Round Lot10,529,8741,443,780,9730.4%100.0%39.9 bps113.1 bps84%38th$0.006726.3%
Non-Marketable Limit$1k–$5k • Odd Lot16,445,677405,063,4761.5%100.0%6.9 bps35.1 bps76%17th$0.062759.5%
Non-Marketable Limit$1k–$5k • Round Lot58,761,1458,089,507,8390.4%100.0%12.3 bps52.6 bps88%31st$0.016524.6%
Non-Marketable Limit$5k–$10k • Odd Lot2,009,65294,787,5672.0%100.0%5.3 bps32.7 bps59%19th$0.100466.6%
Non-Marketable Limit$5k–$10k • Round Lot42,289,9576,596,577,7670.3%100.0%7.7 bps41.6 bps79%21st$0.030325.6%
Non-Marketable Limit$10k–$20k • Odd Lot778,54841,869,5192.0%100.0%5.4 bps26.2 bps60%15th$0.162969.1%
Non-Marketable Limit$10k–$20k • Round Lot39,523,7107,517,994,9280.3%100.0%5.5 bps33.8 bps77%10th$0.047529.8%
Non-Marketable Limit$20k–$50k • Odd Lot119,1668,316,4841.7%100.0%6.0 bps14.8 bps55%12th$0.295072.1%
Non-Marketable Limit$20k–$50k • Round Lot29,624,0828,523,912,4610.2%100.0%5.4 bps28.0 bps74%13th$0.078830.8%
Non-Marketable Limit$50k–$200k • Round Lot10,707,9367,976,962,5040.1%100.0%3.7 bps19.1 bps70%8th$0.054939.9%
Non-Marketable Limit≥$200k • Round Lot995,2832,039,203,1780.3%100.0%7.2 bps16.1 bps69%62nd$0.09089.2%
Market$1k–$5k • Odd Lot110————————
Marketable Limit<$250 • Odd Lot289,927555,90317.5%4.5%0.4 bps-0.9 bps95%25th$0.0156100.0%
Marketable Limit$250–$999 • Odd Lot253,6892,529,05415.5%5.3%0.3 bps-0.9 bps98%21st$0.0219100.0%
Marketable Limit$250–$999 • Round Lot3,409341,0594.3%35.4%2.3 bps-1.2 bps100%85th$0.0055100.0%
Marketable Limit$1k–$5k • Odd Lot303,7147,918,83716.7%6.9%0.1 bps-1.3 bps97%14th$0.0366100.0%
Marketable Limit$1k–$5k • Round Lot706,88482,048,9411.8%3.9%-0.0 bps-1.3 bps100%8th$0.0123100.0%
Marketable Limit$5k–$10k • Odd Lot99,6334,788,62316.3%9.2%0.1 bps-1.6 bps86%12th$0.0705100.0%
Marketable Limit$5k–$10k • Round Lot1,520,594240,546,3221.8%3.3%0.0 bps-1.2 bps100%12th$0.0142100.0%
Marketable Limit$10k–$20k • Odd Lot62,4303,389,21515.3%10.8%0.1 bps-1.2 bps81%12th$0.1141100.0%
Marketable Limit$10k–$20k • Round Lot1,593,235244,703,4533.7%3.5%0.0 bps-1.1 bps99%11th$0.0340100.0%
Marketable Limit$20k–$50k • Odd Lot15,431920,74814.1%11.3%0.1 bps-0.1 bps71%12th$0.1894100.0%
Marketable Limit$20k–$50k • Round Lot1,075,844203,579,3945.2%4.2%0.0 bps-0.9 bps97%10th$0.0633100.0%
Marketable Limit$50k–$200k • Odd Lot2258,0209.2%14.9%0.1 bps1.0 bps87%14th$0.6860100.0%
Marketable Limit$50k–$200k • Round Lot429,536114,219,5514.9%6.1%-0.1 bps-0.8 bps87%6th$0.0923100.0%
Marketable Limit≥$200k • Round Lot34,521154,599,6070.8%8.0%-0.3 bps-0.9 bps70%16th$0.1002100.0%
Non-Marketable Limit<$250 • Odd Lot2,359,6994,990,9646.2%100.0%2.8 bps20.2 bps98%7th$0.044227.8%
Non-Marketable Limit$250–$999 • Odd Lot17,137,36394,949,4551.0%100.0%2.4 bps18.9 bps98%9th$0.051536.1%
Non-Marketable Limit$250–$999 • Round Lot7,282728,3111.1%100.0%11.1 bps—97%59th$0.000076.5%
Non-Marketable Limit$1k–$5k • Odd Lot14,432,852135,721,1662.1%100.0%2.3 bps19.1 bps96%7th$0.059057.6%
Non-Marketable Limit$1k–$5k • Round Lot2,088,080217,947,5610.5%100.0%3.9 bps14.0 bps98%57th$0.002729.8%
Non-Marketable Limit$5k–$10k • Odd Lot1,246,49632,436,2675.2%100.0%2.3 bps19.2 bps85%9th$0.078167.4%
Non-Marketable Limit$5k–$10k • Round Lot6,749,591745,633,8840.4%100.0%2.8 bps19.8 bps93%36th$0.005424.7%
Non-Marketable Limit$10k–$20k • Odd Lot609,09924,285,5694.2%100.0%2.3 bps16.4 bps76%14th$0.103072.3%
Non-Marketable Limit$10k–$20k • Round Lot10,639,9031,170,203,1380.7%100.0%2.8 bps26.7 bps92%19th$0.029225.4%
Non-Marketable Limit$20k–$50k • Odd Lot193,2008,933,4023.4%100.0%2.6 bps8.5 bps70%13th$0.189974.1%
Non-Marketable Limit$20k–$50k • Round Lot13,539,4441,476,209,1690.8%100.0%3.0 bps27.9 bps88%35th$0.057935.3%
Non-Marketable Limit$50k–$200k • Odd Lot5,126107,4501.2%100.0%2.1 bps2.7 bps48%5th$0.610078.3%
Non-Marketable Limit$50k–$200k • Round Lot6,304,606732,389,6750.9%100.0%2.3 bps17.5 bps77%12th$0.072947.1%
Non-Marketable Limit≥$200k • Round Lot452,276264,403,6300.8%100.0%1.7 bps11.7 bps52%12th$0.107154.6%

2. Broker-Dealers Routing Here (Reverse 606 Index)

Firms directing customer order flow to this market center under SEC Rule 606(a), with route percentages and PFOF rates.

No broker-dealers identified routing flow to this market center in 2026Q3.

3. Rule 605 Report Files & Ingestion History

Published monthly execution quality data files crawled from vendor and exchange landing pages.

File NameMonthKindStatusFetched AtSource URL
M202607.zip202607detailedstored2026-09-28T20:19:24.804+00:00 File Link ↗

4. Coverage Gaps & Review Limitations

Suppressed Cells
1
Tiers with < 100 covered orders
Missing Files
0
Months unretrievable

Methodological Caveats:

  • A venue's Rule 605 statistics describe all flow it handled, not this firm's orders.
  • 606 route shares are per order, not per share, and list only the top 10 venues plus any venue with at least 5% of non-directed orders.
  • FINRA Rule 5310.09 also requires the firm's own order-level review of its executions.
  • This report is not legal or compliance advice.
  • Net price improvement is in basis points of executed notional (quote midpoint × shares). The PFOF comparison converts the difference to ¢/100 sh at the venue's average executed price; it is an estimate.
  • Brokers routing here reflect venue aliases as of the last crosswalk-venues run.
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