FINRA Proposed Rule Change To Amend Rule 6191 To Implement Anonymous Grouped Masking for OTC Activity in Tick Size Pilot Program

9 15 U.S.C. 78f(b)(8).
10 15 U.S.C. 78s(b)(3)(A)(ii).
11 17 CFR 240.19b–4(f)(2). 12 17 CFR 200.30–3(a)(12). 1 15 U.S.C. 78s(b)(1). 2 17 CFR 240.19b–4. SECURITIES AND EXCHANGE COMMISSION [Release No. 34–80193; File No. SR–FINRA– 2017–006] Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of a Proposed Rule Change To Amend Rule 6191 To Implement an Anonymous, Grouped Masking Methodology for Over-the-Counter Activity in Connection With Web Site Data Publication of Appendix B Data Pursuant to the Regulation NMS Plan To Implement a Tick Size Pilot Program March 9, 2017. Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (‘‘Act’’) 1 and Rule 19b–4 thereunder,2 notice is hereby given that on March 3, 2017, Financial Industry Regulatory Authority, Inc. (‘‘FINRA’’) filed with the Securities and Exchange Commission (‘‘SEC’’ or ‘‘Commission’’) the proposed rule change as described in Items I, II, and III below, which Items have been prepared by FINRA. The Commission is publishing this notice to solicit comments on the proposed rule change from interested persons.
I. Self-Regulatory Organization’s
Statement of the Terms of Substance of the Proposed Rule Change FINRA is proposing to amend Rule 6191 to implement an anonymous, grouped masking methodology for over￾the-counter (‘‘OTC’’) activity in connection with Web site data publication of Appendix B data pursuant to the Regulation NMS Plan to Implement a Tick Size Pilot Program (‘‘Plan’’). The text of the proposed rule change is available on FINRA’s Web site at http://www.finra.org, at the principal office of FINRA and at the Commission’s Public Reference Room.

3See, e.g., Securities Exchange Act Release No. 76484 (November 19, 2015), 80 FR 73858 (November 25, 2015) (Notice of Filing of File No. SR–FINRA–2015–048); see also Securities Exchange Act Release No. 77164 (February 17, 2016), 81 FR 9043 (February 23, 2016) (Notice of Filing of Partial Amendment No. 1 and Order Granting Accelerated Approval of File No. SR–FINRA–2015–048) (‘‘Accelerated Approval Order’’). 4The Participants filed the Plan to comply with an order issued by the Commission on June 24,
2014. See Letter from Brendon J. Weiss, Vice
President, Intercontinental Exchange, Inc., to Secretary, Commission, dated August 25, 2014 (‘‘SRO Tick Size Plan Proposal’’). See Securities Exchange Act Release No. 72460 (June 24, 2014), 79 FR 36840 (June 30, 2014). See also Securities Exchange Act Release No. 74892 (May 6, 2015), 80 FR 27513 (May 13, 2015) (‘‘Approval Order’’). 5On November 30, 2016, the SEC granted exemptive relief to the Participants, and FINRA filed proposed rule changes, to, among other things, delay the publication of Web site data pursuant to Appendices B and C to the Plan until February 28, 2017, and to delay the ongoing Web site publication by ninety days such that it would be published within 120 calendar days following the end of the month. See, e.g., Letter from David S. Shillman, Associate Director, Division of Trading and Markets, Commission, to Marcia E. Asquith, Senior Vice President and Corporate Secretary, FINRA dated November 30, 2016; see also Securities Exchange Act Release No. 79424 (November 29, 2016), 81 FR 87603 (December 5, 2016) (Notice of Filing and Immediate Effectiveness of File No. SR– FINRA–2016–042). FINRA recently filed a proposed rule change to revert to the 30-day delay with regard to Appendix C data Web site publication. See File No. SR–FINRA–2017–005 (Proposed Rule Change to Amend FINRA Rule 6191 to Modify the Date of Appendix B Web site Data Publication Pursuant to the Regulation NMS Plan to Implement a Tick Size Pilot Program). 6See Section VII.(A) of the Plan (Collection of Trading Center Pilot Data). 7See infra note 20. 8 In connection with the instant filing, FINRA and CHX requested exemptive relief from the Plan to permit the publication on the FINRA Web site of data relating to OTC activity pursuant to Appendix B.I., B.II. and B.IV. on an aggregated basis using an anonymous, grouped masking methodology. See Letter from Marcia E. Asquith, Executive Vice President, Board and External Relations, FINRA, to Robert W. Errett, Deputy Secretary, Commission, dated March 2, 2017. 9See Section VII.(A) of the Plan. 10FINRA will disclose the number of MPIDs in each group with activity in any Pilot Security for that day either within each Appendix B data set or in an associated file. 11See Tick Size Appendix B and C Statistics FAQs (available at http://www.finra.org/sites/ default/files/Tick-Size-Pilot-Appendix-B-and-C￾FAQ.pdf). 12See, e.g., Appendix B.I.a(7) (cumulative number of orders). 13See, e.g., Appendix B.I.a(28) (the share weighted average realized spread for executions of orders); and Appendix B.I.a(29) (the received share￾weighted average percentage for shares not displayable as of order receipt). FINRA will calculate averages for all price variables and percentages.
II. Self-Regulatory Organization’s
Statement of the Purpose of, and Statutory Basis for, the Proposed Rule Change In its filing with the Commission, FINRA included statements concerning the purpose of and basis for the proposed rule change and discussed any comments it received on the proposed rule change. The text of these statements may be examined at the places specified in Item IV below. FINRA has prepared summaries, set forth in sections A, B, and C below, of the most significant aspects of such statements. A. Self-Regulatory Organization’s Statement of the Purpose of, and the Statutory Basis for, the Proposed Rule Change

1. Purpose
   Rule 6191(b) (Compliance with Data Collection Requirements) 3 implements the data collection and Web site publication requirements of the Plan.4 Rule 6191(b)(2)(B) provides, among other things, that FINRA will publish data pursuant to Appendix B.I. and B.II. of the Plan on its Web site within 120 calendar days following month end at no charge,5 and that such publication will not identify the Trading Center that generated the data. Rule 6191(b)(3)(C) provides, among other things, that FINRA will publish data pursuant to
   Appendix B.IV. to the Plan on its Web
   site within 120 calendar days following month end at no charge, and that such publication will not identify the OTC Trading Center that generated the data. In consultation with SEC staff, FINRA is proposing new supplementary material to Rule 6191 to implement the aggregation methodology described further below. Specifically, FINRA is proposing to provide for an anonymous, grouped masking methodology for
   Appendix B.I., B.II. and B.IV. data in
   furtherance of the Plan’s requirement that the data made publicly available will not identify the Trading Center that generated the data.6 The proposed methodology also is intended to mitigate confidentiality concerns previously raised by commenters 7 regarding the publication of data related to OTC activity. Chicago Stock Exchange, Inc. (‘‘CHX’’) is the designated examining authority (‘‘DEA’’) for a relatively small number of OTC Trading Centers; thus, FINRA also will incorporate the firms for which CHX is the DEA into the anonymous, grouped masking methodology and publish OTC-wide statistics for
   Appendix B.I., B.II. and B.IV. data on
   the FINRA Web site.8
   Grouping Methodology
   For purposes of the data to be made available on the FINRA Web site pursuant to the Plan, FINRA proposes to aggregate individual OTC Trading Center Appendix B data within groupings of Trading Centers by ATS and non-ATS categories, using an undisclosed methodology for assigning each Trading Center to a group. FINRA believes that an anonymous, grouped masking methodology for purposes of publishing the required data related to OTC activity will support the Plan’s requirement that the data to be made publicly available will not identify the Trading Center that generated the data.9 In furtherance of this objective, the details of the methodology used to formulate the anonymous groupings will not be disclosed. FINRA believes that the proposed approach strikes an appropriate balance between mitigating confidentiality concerns while supporting the public availability of useful Plan data. Trading Center group assignments will not be published and generally will remain unchanged for the duration of the data publication period, with the exception of the entrance of a new Trading Center (new FINRA member). The anonymized identifier used for each group will remain unchanged for the duration of the data publication period and the same groups and group identifiers will be used for all Appendix B data sets. The number of Trading Centers assigned to each group will not specifically be disclosed; however, each group will contain between five and 25 market participant identifiers (MPIDs). In addition, for each day’s statistics, the number of MPIDs in each group with activity in any Pilot Security for that day will be disclosed. Disclosing the number of active MPIDs each day is intended to inform evaluators of the data of whether the number of Trading Centers reflected in the statistics each day has changed—for example, because a Trading Center in the group didn’t register activity on a given day.10
   Appendix B.I. Data Aggregation
   Methodology
   FINRA proposes to aggregate the
   Appendix B.I. data to be made publicly
   available on the FINRA Web site by aggregating statistics within each group by Pilot Security for each trading day. The methodology used for computing the statistics at the group level will be the same methodology used to compute these statistics at the Trading Center level in the non-public version of the data (and in the public version of the exchange data).11 Specifically, FINRA would calculate group-level sums for statistics that are quantity counts 12 and use all underlying data within a group to calculate statistics requiring averages or weighted averages.13 Data will be aggregated separately for each order

14For purposes of illustration, this table reflects only a sample of the data—specifically, the fields described in Appendix B.I.a.(1), (2), (3), (7), (8), (13) and (28). The published data would reflect all fields described in Appendix B.I. to the Plan and as further specified in FINRA Rule 6191 and related rule filings, the Tick Size Appendix B and C Statistics FAQs (available at http://www.finra.org/ sites/default/files/Tick-Size-Pilot-Appendix-B-and￾C–FAQ.pdf), and in FINRA’s Appendix B and C Requirements and Finra.org File Specifications document (available at http://www.finra.org/sites/ default/files/Appendix-B-and-C-Reporting￾Specifications.pdf). 15For purposes of illustration, this table reflects only a sample of the data—specifically, the fields required by items a. through h. of Appendix B.II. The published data would reflect all fields described in Appendix B.II. to the Plan and as further specified in FINRA Rule 6191 and related rule filings, the Tick Size Appendix B and C Statistics FAQs (available at http://www.finra.org/ sites/default/files/Tick-Size-Pilot-Appendix-B-and￾C-FAQ.pdf), and in FINRA’s Appendix B and C Requirements and Finra.org File Specifications document (available at http://www.finra.org/sites/ default/files/Appendix-B-and-C-Reporting￾Specifications.pdf). 16As provided in FINRA Rule 6191.11, FINRA will provide a count of the number of Market Makers used in the participation calculations. Thus, if a single unique Market Maker traded on multiple Trading Centers within the same masking group, for the Appendix B.IV. count of unique Market Makers on a given trading day, FINRA will count this activity as attributed to one unique Market Maker. type and subcategory, and will not be aggregated across order types or subcategories. aggregated across order types or subcategories.
TABLE 1—ILLUSTRATIVE SAMPLE B.I. DATA AGGREGATION 14
Date Trading center
Ticker symbol
Number of ac￾tive MPIDs in masked group across all pilot stocks Order type Cumulative number of orders Cumulative number of shares of orders Cumulative number of shares of orders executed at an away trading center Share weighted average realized spread for execution of orders on trading center only Unmasked Data 20160926 ............................................ ABCD ZZZZ n/a 18 2 100,000 75,000 ¥0.01 20160926 ............................................ EFGH ZZZZ n/a 18 2 100,000 100,000 0.01 20160926 ............................................ IJKL ZZZZ n/a 18 4 750,000 35,000 0.011 Masked Data 20160926 ............................................ G1 ZZZZ 5 18 8 950,000 210,000 0.0090
Appendix B.II. Data Aggregation
Methodology
Appendix B.II. data includes order￾level statistics; thus, FINRA proposes
that all individual orders be displayed for all Trading Centers within a group, with each order attributed to the group rather than the underlying Trading Center. In addition, Appendix B.II. order information would be displayed in pure chronological order based on time of order receipt to help minimize confidentiality concerns that may occur if other ordering methods were used, such as showing the original chronological order per Trading Center.
TABLE 2—ILLUSTRATIVE SAMPLE B.II. DATA AGGREGATION 15
Date Trading center Issue
Number of active MPIDs in masked group across all pilot stocks Order received time Order type Order shares quantity B/S code Limit price Unmasked Data 20160906 ............................................ ABCD ZZZZ n/a 93,605.41 10 500 B (null) 20160906 ............................................ ABCD ZZZZ n/a 94,114.99 11 100 S 52.45 20160906 ............................................ ABCD ZZZZ n/a 101,140.05 11 900 S 52.31 20160906 ............................................ EFGH ZZZZ n/a 93,605.42 10 600 B (null) 20160906 ............................................ EFGH ZZZZ n/a 94,114.99 11 100 S 52.45 20160906 ............................................ EFGH ZZZZ n/a 101,140.07 11 700 S 52.37 Masked Data 20160906 ............................................ G1 ZZZZ 5 93,605.41 10 500 B (null) 20160906 ............................................ G1 ZZZZ 5 93,605.42 10 600 B (null) 20160906 ............................................ G1 ZZZZ 5 94,114.99 11 100 S 52.45 20160906 ............................................ G1 ZZZZ 5 94,114.99 11 100 S 52.45 20160906 ............................................ G1 ZZZZ 5 101,140.05 11 900 S 52.31 20160906 ............................................ G1 ZZZZ 5 101,140.07 11 700 S 52.37
Appendix B.IV. Data Aggregation
Methodology
FINRA proposes to aggregate
Appendix B.IV. data by aggregating
statistics within each group by trading day by summing the statistics of all market maker activity represented within the group. The number of market makers would be displayed as the unique number of market makers 16 across all Trading Centers within the group.

17For purposes of illustration, this table reflects only a sample of the data—specifically, the fields required by items a. and b. of Appendix B.IV and FINRA Rule 6191.11. The published data would reflect all fields described in Appendix B.IV. to the Plan and as further specified in FINRA Rule 6191 and related rule filings, the Tick Size Appendix B and C Statistics FAQs (available at http:// www.finra.org/sites/default/files/Tick-Size-Pilot￾Appendix-B-and-C-FAQ.pdf), and in FINRA’s
Appendix B and C Requirements and Finra.org File
Specifications document (available at http:// www.finra.org/sites/default/files/Appendix-B-and￾C-Reporting-Specifications.pdf). 18 15 U.S.C. 78o–3(b)(6). 19 15 U.S.C. 78o–3(b)(9). 20See Letters from William Hebert, Managing Director, Financial Information Forum (‘‘FIF’’), to Robert W. Errett, Deputy Secretary, Commission, dated December 21, 2016 (‘‘FIF letter’’); and Adam
C. Cooper, Senior Managing Director and Chief
Legal Officer, Citadel Securities, to Brent J. Fields, Secretary, Commission, dated December 21, 2016 (‘‘Citadel letter’’). See also Securities Exchange Act Release No. 79424 (November 29, 2016), 81 FR 87603 (December 5, 2016) (Notice of Filing and Immediate Effectiveness of File No. SR–FINRA– 2016–042). 21See FIF letter. 22See Citadel letter.
TABLE 3—ILLUSTRATIVE SAMPLE B.IV. DATA AGGREGATION 17
Date Trading center
Number of ac￾tive MPIDs in masked group across all pilot stocks Number unique MMs buy side Number unique MMs sell side Shares participation (buy) Shares participation (sell) Unmasked Data 20160906 ............................................................ ABCD n/a 2 1 700,000 225,000 20160906 ............................................................ EFGH n/a 1 1 200 5,000 20160906 ............................................................ IJKL n/a 4 1 35,000 500,000 Masked Data 20160906 ............................................................ G1 5 5 2 735,200 730,000 If the Commission approves the proposed rule change, the effective date of the proposed rule change will be 120 days following Commission approval.
2. Statutory Basis
FINRA believes that the proposed rule change is consistent with the provisions of Section 15A(b)(6) of the Act,18 which requires, among other things, that FINRA rules must be designed to prevent fraudulent and manipulative acts and practices, to promote just and equitable principles of trade, and, in general, to protect investors and the public interest, and Section 15A(b)(9) of the Act,19 which requires that FINRA rules not impose any burden on competition that is not necessary or appropriate. The Plan is designed to allow the Commission, market participants, and the public to study and assess the impact of increment conventions on the liquidity and trading of the common stock of small-capitalization companies. FINRA consulted extensively with SEC staff in connection with the instant proposal to design a grouped masking methodology that is consistent with the objectives of Section VII(A) of the Plan to make Appendix B data publicly available while not identifying the Trading Center that generated the data. B. Self-Regulatory Organization’s Statement on Burden on Competition FINRA does not believe that the proposed rule change will result in any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act. FINRA notes that the proposed rule change implements the provisions of the Plan.
C. Self-Regulatory Organization’s
Statement on Comments on the Proposed Rule Change Received From Members, Participants, or Others The Commission previously received comment letters from FIF and Citadel Securities expressing concern over FINRA’s intent to publish Appendix B data on a Trading Center-by-Trading Center basis.20 FIF stated that publishing Appendix B.I. and B.II. statistics on FINRA’s Web site in a disaggregated format does not satisfy the requirements of the Plan or Rule 6191 that the publicly available data will not identify the trading center that generated the data.21 Similarly, Citadel Securities stated that market participants would be able to determine the identity of Trading Centers in violation of the Plan if the Appendix B data were to be published in a disaggregated format.22 In consultation with SEC staff, FINRA is filing the instant proposed rule change to mitigate the confidentiality concerns raised by commenters by providing for an anonymized, grouped masking methodology for Appendix B data for all OTC activity in furtherance of the objectives of the Plan.
III. Date of Effectiveness of the
Proposed Rule Change and Timing for Commission Action Within 45 days of the date of publication of this notice in the Federal Register or within such longer period (i) as the Commission may designate up to 90 days of such date if it finds such longer period to be appropriate and publishes its reasons for so finding or (ii) as to which the self-regulatory organization consents, the Commission will:
(A) By order approve or disapprove such proposed rule change, or (B) institute proceedings to determine whether the proposed rule change should be disapproved.
IV. Solicitation of Comments
Interested persons are invited to submit written data, views, and arguments concerning the foregoing, including whether the proposed rule change is consistent with the Act. Comments may be submitted by any of the following methods:
Electronic Comments

• Use the Commission’s Internet
  comment form (http://www.sec.gov/ rules/sro.shtml); or
• Send an email to rule-comments@
  sec.gov. Please include File Number SR– FINRA–2017–006 on the subject line. Paper Comments
• Send paper comments in triplicate
  to Secretary, Securities and Exchange Commission, 100 F Street NE., Washington, DC 20549–1090. All submissions should refer to File Number SR–FINRA–2017–006. This file number should be included on the subject line if email is used. To help the Commission process and review your comments more efficiently, please use only one method. The Commission will post all comments on the Commission’s

23 17 CFR 200.30–3(a)(12).
1 15 U.S.C. 78s(b)(1).
2 17 CFR 240.19b–4.
3See Securities Exchange Act Release No. 79676 (December 22, 2016), 81 FR 96150 (December 29,
2016) (‘‘Notice’’).
4See Securities Exchange Act Release No. 80022 (February 10, 2017), 82 FR 10947 (February 16,
2017) (‘‘Extension’’).
5The Commission notes that throughout this order we have used the term ‘‘SPAC’’ or ‘‘SPACs’’, but these terms have the same meaning as ‘‘Acquisition Company’’ or ‘‘Acquisition Companies’’ which are the terms used for listing, and continued listing, in Sections 102.06 and 802.01B of the Manual. See NYSE Listed Company Manual Sections 102.06 and 802.01B. 6See NYSE Listed Company Manual Section 102.06. 7 Id. The 80% fair market value is the net assets held in trust net of amounts disbursed to management for working capital purposes and excluding the amount of any deferred underwriting discount held in trust. 8 Id. 9 Id. 10 Id. 11See notes 16–18, infra and accompanying text. 12See Notice, supra note 4. Internet Web site (http://www.sec.gov/ rules/sro.shtml). Copies of the submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for Web site viewing and printing in the Commission’s Public Reference Room, 100 F Street NE., Washington, DC 20549, on official business days between the hours of 10:00 a.m. and 3:00 p.m. Copies of the filing also will be available for inspection and copying at the principal office of FINRA. All comments received will be posted without change; the Commission does not edit personal identifying information from submissions. You should submit only information that you wish to make available publicly. All submissions should refer to File Number SR–FINRA– 2017–006, and should be submitted on or before April 5, 2017. For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.23 Eduardo A. Aleman, Assistant Secretary. [FR Doc. 2017–05082 Filed 3–14–17; 8:45 am] BILLING CODE 8011–01–P