MARKET REGULATION ADVISORY NOTICE______________________________________________________________________
Exchange

CME, CBOT, NYMEX & COMEX

Subject

Accurate Submission of Customer Type Indicator (CTI) Codes

Rule References

Rule 536.D.

Advisory Date

August 30, 2021

Advisory Number

CME Group RA2111-5

Effective Date

October 1, 2021

Effective on trade date Friday, October 1, 2021, and pending all relevant CFTC regulatory review periods,
this Advisory Notice will supersede CME Group Market Regulation Advisory Notice RA1616-5 from
December 12, 2016. It is being issued based on amendments to CBOT Rule 536.D. (“Customer Type
Indicator (CTI) Codes”) that become effective on October 1, 2021, in connection with the September 30,
2021, closure of the trading floor for all products other than options on CME Eurodollar futures andoptions on CME SOFR futures.1
Carrying firms must ensure that all give-up trades accepted by the firm contain the correct CTI code by
the end of the trading day. In circumstances where an executing firm knows or is apprised of accountownership at order receipt time, the executing firm is also expected to submit the correct CTI code on theoriginal execution record. In a give-up scenario wherein the executing firm does not know the accountownership of a trade intended to be given up to another firm, the executing firm should submit a CTI code
4 on the execution record. In this circumstance, the carrying firm must ensure that the correct CTI code
appears on the trade by the end of the trading day.
For give-up trades where the execution information is submitted to the Exchange by a party other thanthe executing firm, such party is expected to submit the correct CTI code on the original execution record
where such party knows or is apprised of account ownership at the time the trade is being submitted. If
the party does not know the account ownership of a trade intended to be given up, then the party should
submit a CTI code 4 on the execution record. In this circumstance, the carrying firm must ensure that thecorrect CTI code appears on the trade by the end of the trading day.
Firm Regulatory Portal
Clearing member firms are able to access CTI Code Reports within the Firm Regulatory Portal. Clearing
member firms have the ability to generate daily and monthly summary reports, and account level detailed
reports, regarding the submission of inaccurate CTI codes for pit, electronic, ex-pit and “give-in received”
transactions submitted by that clearing firm.
The Firm Regulatory Portal can be accessed using a CME Group Login. To register for a Login, please
visit https://login.cmegroup.com/sso/register/. For further instruction please contact CME Group LoginSupport at EASE.AtYourService@cmegroup.com or 312.456.1560.
To request Firm Regulatory Portal access, please send an email with your CME Group Login ID toMarketRegFRP@cmegroup.com.
Detailed instructions concerning navigating and generating CTI Code reports are included in a manualthat can be accessed under the ‘Help’ menu once logged in to the Firm Regulatory Portal.
1

Please see Special Executive Report S-8833 from August 27, 2021, for additional information on the rule amendments.

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August 30, 2021
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The text of each Exchange’s Rule 536.D. is set forth below.
Questions regarding this Advisory Notice may be directed to one of the following individuals in MarketRegulation:
Terrence Quinn, Manager, Data Investigations, 312.435.3753
Jeffrey Nierman, Lead Data Investigator, 312.341.3195
Andrew Carr, Investigations Specialist, 312.435.3610

For media inquiries concerning this Advisory Notice, please contact CME Group Corporate Communications at 312.930.3434 or
news@cmegroup.com.

CME
536.D.
Customer Type Indicator (CTI) Codes
Each clearing member must identify each transaction 1) executed on the trading floor, 2) executed on the Globex
platform or 3) privately negotiated as a block trade pursuant to Rule 526 or an EFRP pursuant to Rule 538 on the recordof the transaction submitted to the Exchange with the correct customer type indicator (CTI) code. The CTI codes are
as follows:
CTI 1: Electronic Trading, Open Outcry and Privately Negotiated – Applies to transactions initiated and executed by anindividual member for his own account, for an account he controls, or for an account in which he has an ownership or
financial interest. However, transactions initiated and executed by a member for the proprietary account of a member
firm must be designated as CTI 2 transactions.
CTI 2: Electronic Trading, Open Outcry and Privately Negotiated – Applies to orders entered or trades executed for theproprietary accounts of a member firm, including Rule 106.H., I., N., R. and S. firms.
CTI 3: Electronic Trading – Applies to orders entered by a member or a nonmember terminal operator for the accountof another individual member or an account controlled by such other individual member.
CTI 3: Open Outcry and Privately Negotiated – Applies to orders that a member executes on behalf of another individual
member, or for an account such other member controls or in which such other member has an ownership or financialinterest.
CTI 4: Electronic Trading, Open Outcry and Privately Negotiated – Applies to all orders and transactions not includedin CTI categories 1, 2 or 3. These typically are orders entered by or on behalf of nonmember entities.
CBOT536.D.
Customer Type Indicator (CTI) Codes
Each clearing member must identify each transaction 1) executed on the Globex platform or 2) privately negotiated asa block trade pursuant to Rule 526 or an EFRP pursuant to Rule 538 on the record of the transaction submitted to theExchange with the correct customer type indicator (CTI) code. The CTI codes are as follows:
CTI 1: Electronic Trading and Privately Negotiated – Applies to transactions initiated and executed by an individual
member for his own account, for an account he controls, or for an account in which he has an ownership or financial
interest. However, transactions initiated and executed by a member for the proprietary account of a member firm must
be designated as CTI 2 transactions.
CTI 2: Electronic Trading and Privately Negotiated – Applies to orders entered or trades executed for the proprietaryaccounts of a member firm, including Rule 106.H., I., J., R. and S. firms.
CTI 3: Electronic Trading – Applies to orders entered by a member or a nonmember terminal operator for the accountof another individual member or an account controlled by such other individual member.
CTI 3: Privately Negotiated – Applies to orders that a member executes on behalf of another individual member, or foran account such other member controls or in which such other member has an ownership or financial interest.
CTI 4: Electronic Trading and Privately Negotiated – Applies to all orders and transactions not included in CTI categories
1, 2 or 3. These typically are orders entered by or on behalf of nonmember entities.

CME Group RA2111-5
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NYMEX/COMEX
536.D.
Customer Type Indicator (CTI) Codes
Each clearing member must identify each transaction 1) executed on the Globex platform or 2) privately negotiatedas a block trade pursuant to Rule 526 or an EFRP pursuant to Rule 538 on the record of the transaction submitted
to the Exchange with the correct customer type indicator (CTI) code. The CTI codes are as follows:
CTI 1: Electronic Trading and Privately Negotiated – Applies to transactions initiated and executed by an individual
member for his own account, for an account he controls, or for an account in which he has an ownership or financial
interest. However, transactions initiated and executed by a member for the proprietary account of a member firmmust be designated as CTI 2 transactions.
CTI 2: Electronic Trading and Privately Negotiated – Applies to orders entered or trades executed for the proprietaryaccounts of a member firm.
CTI 3: Electronic Trading – Applies to orders entered by a member or a nonmember terminal operator for the accountof another individual member or an account controlled by such other individual member.
CTI 3: Privately Negotiated – Applies to orders that a member executes on behalf of another individual member, orfor an account such other member controls or in which such other member has an ownership or financial interest.
CTI 4: Electronic Trading and Privately Negotiated – Applies to all orders and transactions not included in CTI
categories 1, 2 or 3. These typically are orders entered by or on behalf of nonmember entities.