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Rule 5.3 restricts a Participant and its employees from trading in the same securities as a client of the Participant. The restriction is designed to minimize the conflict of interest that occurs when a Participant or its employee compete with the firm’s clients for execution of orders. The Rule governs:
The application of the rule can be quite complex given the diversity of professional trading operations in many firms, which can include such activities as block facilitation, market making, derivative and arbitrage trading. In addition, firms may withhold particular client orders in order to obtain for the client a better execution than the client would have received if the order had been entered directly on a marketplace. Each firm must analyze its own operations, identify risk areas and adopt compliance procedures tailored to its particular situation.
A Participant has overriding agency responsibilities to its clients and cannot use technical compliance with the rule to establish fulfillment of its obligations if the Participant has not otherwise acted reasonably and diligently to obtain best execution of its client orders.
A Participant can never intentionally trade ahead of a client order that is either a market order or tradeable limit order received prior to the entry of the principal order or non-client order except in accordance with an exemption from the requirements of Rule 5.3(1), which exemptions include obtaining the specific consent of the client. Examples of "intentional trades” include, but are not limited to:
The Participant must have reasonable procedures in place to ensure that information concerning client orders is not used improperly within the firm. These procedures will vary from firm to firm and no one procedure will work for all firms. If a firm does not have reasonable procedures in place, it cannot rely on the exceptions. Reference should be made to Policy 7.1 – Policy on Trading Supervision Obligations, and in particular Part 4 – Specific Procedures Respecting Client Priority.
If a client has instructed a Participant to withhold an order or has granted a Participant discretion with respect to the entry of an order, details of the instruction or grant of discretion must be retained for a period of seven years from the date of the instruction or grant of discretion and, for the first two years, the consent must be kept in a readily accessible location.
A Participant does not have to provide priority to a client order if the client specifically consents to the Participant trading alongside or ahead of the client. The consent of the client must be specific to a particular order and details of the agreement with the client must be noted on the order ticket. A client cannot give a blanket form of consent to permit the Participant to trade alongside or ahead of any future orders the client may give the Participant.
If the client order is part of a pre-arranged trade that is to be completed at a price below the best bid price or above the best ask price as indicated on a consolidated market display, the Participant will be under an obligation to ensure that “better-priced” orders on a protected marketplace are filled prior to the execution of the client order. Prior to executing the client order, the Participant must ensure that the client is aware of the better-priced orders and has consented to the Participant executing as against them in priority to the client order. The consent of the client must be noted on the order ticket.
If the client has given the Participant an order that is to be executed at various times during a trading day (e.g. an “over-the-day” order) or at various prices (e.g. at various prices in order to approximate a volume-weighted average price), the client is deemed to have consented to the entry of principal orders and non-client orders that may trade ahead of the balance of the client order. Unless the client has provided standing written instructions that all orders are to be executed at various times during the trading day or at various prices during the trading day, the client instructions should be treated as specific to a particular order and the details of the instructions by the client must be noted on the order ticket. However, if the un-entered portion of the client order would reasonably be expected to affect the market price of the security, the Participant may be precluded from entering principal orders or non-client orders as a result of the application of the frontrunning rule.
In certain circumstances, a client may provide a conditional consent for the Participant to trade alongside or ahead of the client order. For example, a client may consent to a principal order of Participant sharing fills with the client order provided the client order is fully executed by the end of the trading day. If the client's order is not fully executed, the client may expect that the Participant "give up" its fills to the extent necessary to complete the client order. In this situation, the Participant should mark its orders as "principal" throughout the day. Any part of the execution which is given up to the client should not be re-crossed on a marketplace but should simply be journalled to the client (since the condition of the consent has not been met, the fills in question could be viewed as properly belonging to the client rather than the principal order). To the extent that a Participant "gives up" part of a fill of a principal order to a client based on the conditional consent, the Participant shall report the particulars of the "give up" to the Market Regulator not later than the opening of trading on marketplaces on the next trading day. The conditional consent of the client must be specific to a particular order. The details of the agreement with the client must be noted on the order ticket.
Defined Terms:
NI 21-101 section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation -- “security”
UMIR section 1.1 – “best ask price”, “best bid price”, “Basis Order”, “Call Market Order”, “client order”, “consolidated market display”, “employee”, “Exchange”, “limit order”, “Market Integrity Official”, “Market-on-Close Order”, “market order”, “Market Regulator”, “marketplace”, “Marketplace Rules”, “Marketplace Trading Obligations”, “non-client order”, “Opening Order”, “Participant”, “pre-arranged trade”, “principal order”, “QTRS”, “Special Terms Order”, “trading day” and “Volume-Weighted Average Price Order”
UMIR section 1.2(2) – “trade”
Related Provisions:
UMIR section 4.1 and Policy 7.1
Regulatory History:
Effective October 31, 2003, the applicable securities commissions approved an amendment to accommodate anonymous orders. See Market Integrity Notice 2003‑024 – “Accommodation of Anonymous Orders” (October 31, 2003).
Effective May 26, 2006, the applicable securities commissions approved amendments to repeal and replace Rule 5.3 and Policy 5.3. See Market Integrity Notice 2006‑012 – “Provisions Respecting Client Priority” (May 26, 2006).
Effective March 9, 2007, the applicable securities commissions approved an amendment to repeal and replace Rule 5.3 and to repeal and replace Parts 2 and 3 of Policy 5.3. See Market Integrity Notice 2007‑002 – “Provisions Respecting Competitive Marketplaces” (February 26, 2007).
Effective August 26, 2011, the applicable securities commissions approved an amendment to Rule 5.3(2) to replace the reference to “Market Maker Obligations” with “Marketplace Tracking Obligations”. See IIROC Notice 11‑0251 – “Provisions Respecting Market Maker, Odd Lot and Other Marketplace Trading Obligations” (August 26, 2011).
Effective December 9, 2013, the applicable securities commissions approved amendments to the French version of UMIR. See IIROC Notice 13‑0294 – “Amendments to the French version of UMIR” (December 9, 2013).
Effective September 18, 2015, the applicable securities commissions approved an amendment to Part of Policy 5.3. See IIROC Notice 15‑0211 - Notice of Approval – “Provisions Respecting Unprotected Transparent Marketplaces and the Order Protection Rule” (September 18, 2015).
Effective January 2, 2018, the applicable securities commissions approved an amendment to Part 3 of Policy 5.3. See IIROC Notice 17‑0137 – “Amendments Respecting Best Execution” (July 6, 2017).
Effective July 27, 2023, the applicable securities commissions approved housekeeping amendments to UMIR to correct inaccurate referencing and typographical mistakes and to ensure consistency between the English and French versions of UMIR. See CIRO Bulletin 23-0107 - "Housekeeping Amendments to UMIR" (July 27, 2023).
Effective December 22, 2025, the applicable securities commissions approved amendments to Rule 5.3 to accommodate the introduction of a “Contingent Derivative Order”. See CIRO Bulletin 25-0314 - "Amendments Respecting Contingent Derivative Orders" (November 20, 2025).
Effective January 13, 2026, the applicable securities commissions approved amendments to Rule 5.3 to accommodate the introduction of a “Net Asset Value Order”. See CIRO Bulletin 25-0200 - “Amendments Respecting Net Asset Value Orders and Intentional Crosses” (July 17, 2025).
Regulatory History:
Effective April 8, 2005, the applicable securities commissions approved an amendment to confirm that the best price obligation does not apply to Basis Orders. See Market Integrity Notice 2005‑010 – “Provisions Regarding a “Basis Order” (April 8, 2005).
Effective March 9, 2007, the applicable securities commissions approved an amendment to confirm that the best price obligation does not apply to Closing Price Orders, and to change the factors that may be considered in Part 1 of Policy 5.2 (“Qualification of Obligation”). See Market Integrity Notice 2007‑002 – “Provisions Respecting Competitive Marketplaces” (February 26, 2007).
Effective May 16, 2008, the applicable securities commissions approved amendments to Rule and Policy 5.2 to account for off-marketplace trades. See Market Integrity Notice 2008‑008 – “Provisions Respecting “Off‑Marketplace” Trades” (May 16, 2008).
Effective May 16, 2008 (retroactively), the applicable securities commissions approved amendments to Rule 5.2 to repeal the reference to transaction fees and to Policy 5.2 to revise Part 1 – Qualification of Obligation. See IIROC Notice 09‑0107 – “Provisions Respecting the “Best Price” Obligation” (April 17, 2009).
Effective February 1, 2011, the applicable securities commissions approved amendments to repeal Rule 5.2 and Policy 5.2. See IIROC Notice 11‑0036 – “Provisions Respecting the Implementation of the Order Protection Rule” (January 28, 2011).
Defined Terms:
NI 14-101 – section 1.1(3) – “foreign jurisdiction”
NI 21-101 – section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation -- “security”
NI 23-101 – section 1.1 – “directed-action order”
UMIR section 1.1 – “better price”, “client order”, “consolidated market display”, “foreign organized regulated market”, “Market Regulator”, “marketplace” and “Participant”
UMIR section 1.2(2) – “trade”
Related Provisions:
UMIR sections 6.2 and 6.4; NI 23-101 – Part 6
Regulatory History:
Effective March 9, 2007, the applicable securities commissions approved an amendment to Policy 5.1 to add Part 2. See Market Integrity Notice 2007‑002 – “Provisions Respecting Competitive Marketplaces” (February 25, 2007).
Effective May 16, 2008, the applicable securities commissions approved an amendment to Part 2 of Policy 5.1 to replace the phrase “organized regulated markets outside of Canada” with “foreign organized regulated markets”. See Market Integrity Notice 2008‑008 – “Provisions Respecting “Off-Marketplace” Trades” (May 16, 2008).
Effective September 12, 2008, the applicable securities commissions approved an amendment to replace Rule 5. And Policy 5.11. See IIROC Notice 08‑0039 – “Provisions Respecting Best Execution” (July 18, 2008).
Effective February 1, 2011, the applicable securities commissions approved an amendment to repeal and replace Part 4 of Policy 5.1. See IIROC Notice 11‑0036 – “Provisions Respecting the Implementation of the Order Protection Rule” (January 28, 2011).
Effective December 9, 2013, the applicable securities commissions approved amendments to the French version of UMIR. See IIROC Notice 13‑0294 – Notice of Approval and Implementation – “Amendments to the French version of UMIR” (December 9, 2013).
Effective January 2, 2018, the applicable securities commissions approved amendments to repeal Rule 5.1 of UMIR. See IIROC Notice 17‑0137 – “Amendments Respecting Best Execution” (July 6, 2017).
Rule 4.1 provides that no Participant shall trade in equities or derivatives to take advantage of information concerning a client order that has not been entered on a marketplace that reasonably can be expected to change the prices of the equities or the related derivatives. Without limiting the generality of the Rule, the following are examples of transactions covered by the prohibition:
Rule 10.4 extends the prohibition to cover orders entered by a related entity of the Participant or a director, officer, partner or employee of the Participant or a related entity of the Participant.
In order to constitute frontrunning contrary to Rule 4.1, the person must have specific knowledge concerning the client order that, on entry, could reasonably be expected to affect the market price of a security or derivative. A person with knowledge of such a client order must insure that the client order has been entered on a marketplace before that person can:
Trading based on non-specific pieces of market information, including rumours, does not constitute frontrunning.
Defined Terms:
NI 21-101 section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation – “security”
UMIR section 1.1 – “arbitrage account”, “client order”, “derivative”, “employee”, “foreign organized regulated market”, “hedge”, “marketplace”, “non-client order”, “Participant”, ”principal order”, “Program Trade”, “related derivative”, “related entity” and “related security”
UMIR section 1.2(2) – “person” and “trade”“
Regulatory History:
Effective May 16, 2008, the applicable securities commissions approved an amendment to Rule 4.1 to replace the phrase “stock exchange or market” with “foreign organized regulated market or other market” See Market Integrity Notice 2008-008 – “Provisions Respecting “Off-Marketplace” Trades” (May 16, 2008).
Effective December 9, 2013, the applicable securities commissions approved amendments to the French version of UMIR. See IIROC Notice 13-0294 – “Amendments to the French version of UMIR” (December 9, 2013).
Effective December 14, 2022, the applicable securities commissions approved amendments to Rule 4.1 and Policy 4.1. See IIROC Notice 22-0140 – “Amendments Respecting the Trading of Derivatives on a Marketplace” (September 15, 2022).
Defined Terms:
NI 21-101 section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation – “security”
UMIR section 1.1 – “Access Person”, “derivatives market maker”, “hedge”, “Market Regulator”, “marketplace”, “Marketplace Rules”, “Marketplace Trading Obligations”, “Participant”, “Policy”, “Pre-Borrow Security”, “Program Trade”, “related security”, “short sale”, “short-marking exempt order”, “Short Sale Ineligible Security” and “UMIR”
Regulatory History:
On October 15, 2008, the applicable securities commissions approved amendments to UMIR to add section 3.2 that came into force on October 14, 2008. See IIROC Notice 08-0143 – “Provisions Respecting Short Sales and Failed Trades” (October 15, 2008).
Effective August 26, 2011, the applicable securities commissions approved amendments to Rule 3.2 to replace in subsection (2) the phrase “an Exchange or QTRS in accordance with the Marketplace Rules” with “a marketplace” and to replace the phrase “applicable Market Maker Obligations” with “Marketplace Trading Obligations of that marketplace” and to replace clause (a) of subsection (3) of Rule 3.2. See IIROC Notice 11-0251 – “Provisions Respecting Market Maker, Odd Lot and Other Marketplace Trading Obligations” (August 26, 2011).
On March 2, 2012, the applicable securities commissions approved amendments to section 3.2, effective October 15, 2012, to delete the reference in clause (a) of subsection (1) to “or subclause 6.2(1)(b)(ix)” and to repeal and replace subsection (2). See IIROC Notice 12-0078 - “Provisions Respecting Regulation of Short Sales and Failed Trades” (March 2, 2012).
On November 15, 2024, the applicable securities commissions approved amendments to UMIR to consolidate provisions related to short selling to a common location within UMIR. See CIRO Bulletin 24-0349 – “Amendments Respecting the Reasonable Expectation to Settle a Short Sale” (December 5, 2024).
Regulatory History:
Effective August 27, 2004, the applicable securities commissions approved the amendment to permit a short sale of an Exchange-traded Fund on a downtick. See Market Integrity Notice 2004-023 – “Provisions Respecting Short Sales” (August 27, 2004).
Effective April 8, 2005, the applicable securities commissions approved an amendment to permit a short sale of a Basis Order on a downtick. See Market Integrity Notice 2005-010 – “Provisions Respecting a “Basis Order”” (April 8, 2005).
Effective March 9, 2007, the applicable securities commissions approved an amendment to permit a short sale of a Closing Price Order on a downtick. See Market Integrity Notice 2007-002 – “Provisions Respecting Competitive Marketplaces” (February 26, 2007).
Effective May 16, 2008, the applicable securities commissions approved an amendment to permit a short sale on a downtick if the order is made for purposes of complying with the Order Protection Rule. See Market Integrity Notice 2008-008 – “Provisions Respecting “Off-Marketplace” Trades” (May 16, 2008).
In connection with the recognition of IIROC and its adoption of UMIR, the applicable securities commissions approved an amendment to clause (h) at subsection (2) of Rule 3.1 that came into force on June 1, 2008 to replace the phrase “Rule or” with “provision of UMIR or a ”. See Footnote 1 in Status of Amendments.
Effective January 8, 2010, the applicable securities commissions approved amendments to replace the words “Exchange-traded Fund” with “Exempt Exchange-traded Fund”. See IIROC Notice 10-0006 – “Provisions Respecting Trading During Certain Securities Transactions” (January 8, 2010).
Effective August 26, 2011, the applicable securities commissions approved amendments to repeal a reference to “Market Maker Obligations” and replace it with a reference to “Marketplace Trading Obligations”. See IIROC Notice 11-0251 - “Provisions Respecting Market Maker, Odd-Lot and other Marketplace Trading Obligations” (August 26, 2011).
On March 2, 2012, the applicable securities commissions approved amendments to repeal Rule 3.1 and Policy 3.1 effective October 15, 2012. See IIROC Notice 12-0078 – “Provisions Respecting Regulation of Short Sales and Failed Trades” (March 2, 2012). Prior to that date, Rule and Policy 3.1 provided:
3.1 Restrictions on Short Selling
Prior to the opening of a marketplace on a trading day, a short sale may not be entered on that marketplace as a market order and must be entered as a limit order and have a limit price at or above the last sale price of that security as indicated in a consolidated market display (or at or above the previous day’s close reduced by the amount of a dividend or distribution if the security will commence ex-trading on the opening).
When reducing the price of a previous trade by the amount of a distribution, it is possible that the price of the security will be between the trading increments. (For example, a stock at $10 with a dividend of $0.125 would have an ex-dividend price of $9.875. A short sale order could only be entered at $9.87 or $9.88.) Where such a situation occurs, the price of the short sale order should be set no lower than the next highest price. (In the example, the minimum price for the short sale would be $9.88, being the next highest price at which an order may be entered to the ex-dividend price of $9.875).
In the case of a distribution of securities (other than a stock split) the value of the distribution is not determined until the security that is distributed has traded. (For example, if shareholders of ABC Co. receive shares of XYZ Co. in a distribution, an initial short sale of ABC on an ex-distribution basis may not be made at a price below the previous trade until XYZ Co. has traded and a value determined).
Once a security has traded on an ex-distribution basis, the regular short sale rule applies and the relevant price is the previous trade.
A Participant or Access Person shall not enter an order on a marketplace or execute a trade if the Participant or Access Person knows or ought reasonably to know that that the entry of the order or the execution of the trade would not comply with or would result in the violation of:
Defined Terms:
NI 14-101 section 1.1(3) – “securities legislation”
NI 21-101 section 1.1 – “order” and “self-regulatory entity”
UMIR section 1.1 – “Access Person”, “marketplace”, “Marketplace Rules”, “Participant”, “Policy” and “UMIR”
UMIR section 1.2(2) – “trade”
Related Provisions:
UMIR Policy 1.2 Part 3 – interpretation of “ought reasonably to know”
Regulatory History:
Effective April 1, 2005, the applicable securities commissions approved an amendment to add Rule 2.3. See Market Integrity Notice 2005-011 - “Provisions Respecting Manipulative and Deceptive Activities” (April 1, 2005).
In connection with the recognition of IIROC and its adoption of UMIR, the applicable securities commissions approved an amendment to Rule 2.3 that came into force on June 1, 2008 to make editorial changes. See Footnote 1 in Status of Amendments.
There are a number of activities which, by their very nature, will be considered to be a manipulative or deceptive method, act or practice. For the purpose of subsection (1) of Rule 2.2 and without limiting the generality of that subsection, the following activities when undertaken on a marketplace constitute a manipulative or deceptive method, act or practice:
If persons know or ought reasonably to know that they are engaging or participating in these or similar types of activities those persons will be in breach of subsection (1) of Rule 2.2 irrespective of whether such method, act or practice results in a false or misleading appearance of trading activity or interest in the purchase or sale of a security or a derivative or an artificial ask price, bid price or sale price for a security or a derivative or a related security or a related derivative.
For the purposes of subsection (2) of Rule 2.2 and without limiting the generality of that subsection, if any of the following activities are undertaken on a marketplace and create or could reasonably be expected to create a false or misleading appearance of trading activity or interest in the purchase or sale of a security or a derivative or an artificial ask price, bid price or sale price, the entry of the order or the execution of the trade shall constitute a violation of subsection (2) of Rule 2.2:
entering an order or orders for the sale of a security or a derivative with the knowledge that an order or orders of substantially the same size, at substantially the same time and at substantially the same price for the purchase of that security or a derivative, has been or will be entered;
(b.1) the prohibition in paragraphs (a) and (b) of Part 2 of Policy 2.2 does not apply to certain pre-arranged trades as determined by the Corporation from time to time
If persons know or ought reasonably to know that they are engaging or participating in these or similar types of activities those persons will be in breach of subsection (2) of Rule 2.2 irrespective of whether such activity results in a false or misleading appearance of trading activity or interest in the purchase or sale of a security or a derivative or an artificial ask price, bid price or sale price for a security or a derivative or a related security or a related derivative.
For the purposes of subsection (2) of Rule 2.2, an ask price, bid price or sale price will be considered artificial if it is not justified by real demand or supply in a security or a derivative. Whether or not a particular price is "artificial" depends on the particular circumstances.
Some of the relevant considerations in determining whether a price is artificial are:
the change in the:
that results from the entry of an order on a marketplace;
The absence of any one or more of these considerations is not determinative that a price is or is not artificial.
Defined Terms:
NI 21-101 section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation – “security”
UMIR section 1.1 – “Access Person”, “best ask price”, “best bid price”, “consolidated market display”, “derivative”, “internal cross”, “last sale price”, “listed derivative”, “listed security”, “Marketplace Trading Obligations”, “Market Regulator”, “marketplace”, “Marketplace Rules”, “Participant”, “pre-arranged trade”, “related derivative” and “related security”
UMIR section 1.2(2) – “person” and “trade”
Related Provisions:
UMIR Policy 1.2 Part 3 – interpretation of “ought reasonably to know”
Regulatory History:
Effective April 1, 2005, the applicable securities commissions approved an amendment to repeal and replace Rule 2.2 and Policy 2.2. See Market Integrity Notice 2005-011 – “Provisions Respecting Manipulative and Deceptive Activities” (April 1, 2005).
Effective August 26, 2011, the applicable securities commissions approved amendments to subsection 2.2(3). to (a) insert after the phrase “Marketplace Rules” the phrase “or terms of the contract with the marketplace”; and to (b) delete each occurrence of the phrase “Market Maker Obligations” and substitute “Marketplace Trading Obligations”. See IIROC Notice 11-0251 – “Provisions Respecting Market Maker, Odd Lot and Other Marketplace Trading Obligations” (August 26, 2011).
On March 2, 2012, the applicable securities commissions approved an amendment to repeal clause (d) of Part 1 of Policy 2.2 effective October 15, 2012. See IIROC Notice 12-0078 – “Provisions Respecting Regulation of Short Sales and Failed Trades” (March 2, 2012).
Effective December 9, 2013, the applicable securities commissions approved amendments to the French version of UMIR. See IIROC Notice 13-0294 – “Amendments to the French version of UMIR”.
Effective December 14, 2022, the applicable securities commissions approved amendments to UMIR 2.2(2) and Policy 2.2. See IIROC Notice 22-0140 – “Amendments Respecting the Trading of Derivatives on a Marketplace” (September 15, 2022).
Effective July 27, 2023, the applicable securities commissions approved housekeeping amendments to UMIR to correct inaccurate referencing and typographical mistakes and to ensure consistency between the English and French versions of UMIR. See CIRO Bulletin 23-0107 - "Housekeeping Amendments to UMIR" (July 27, 2023).
when trading a security on a marketplace that is subject to Marketplace Trading Obligations, intentionally entering on that marketplace on a particular trading day two or more orders which would impose an obligation on the person with Marketplace Trading Obligation to
in accordance with the Marketplace Trading Obligations that would not be imposed on the person with Marketplace Trading Obligations if the orders had been entered on the marketplace as a single order or entered at the same time.
Defined Terms: NI 21-101 section 1.1 – “order”
NI 21-101 section 1.4 – Interpretation – “security”
UMIR section 1.1 – “Access Person”, “best ask price”, “best bid price”, “bypass order”, “client order”, “designated trade”, “disclosed volume”, “Exchange”, “failed trade”, “intentional cross”, “Market Regulator”, “marketplace”, “Marketplace Trading Obligations”, “Participant”, “pre-arranged trade”, “principal order”, “protected marketplace”, “Requirements”, “trading day” and “trading increment”
UMIR section 1.2(2) – “person” and “trade”
Related Provisions:
UMIR section 7.10 and Part 2 of Policy 5.3
Regulatory History:
Effective March 9, 2007, the applicable securities commissions approved an amendment to replace clause (d) at the end of Part 1 of Policy 2.1. See Market Integrity Notice 2007-002 – “Provisions Respecting Competitive Marketplaces” (February 26, 2007).
Effective May 16, 2008, the applicable securities commissions approved amendments to Policy 2.1 to replace the opening sentence of the last paragraph of Part 1 of Policy 2.1 and to replace Part 2 of Policy 2.1. See Market Integrity Notice 2008-008 – “Provisions Respecting Off-Marketplace Trades” (May 16, 2008).
On October 15, 2008, the applicable securities commissions approved amendments to Part 1 of Policy 2.1 that came into force on October 14, 2008 to delete and replace the second paragraph, to include a reference to failed trades. See IIROC Notice 08-0143 – “Provisions Respecting Short Sales and Failed Trades” (October 15, 2008).
Effective August 26, 2011, the applicable securities commissions approved amendments to delete and replace clause (d) of Part 1 of Policy 2.1, to replace the term “Market Maker Obligations” with the new defined term “Marketplace Trading Obligations”. See IIROC Notice 11-0251 – “Provisions Respecting Market Maker, Odd Lot and Other Marketplace Trading Obligations” (August 26, 2011).
Effective December 9, 2013, the applicable securities commissions approved amendments to the French version of UMIR. See IIROC Notice 13-0294 – “Amendments to the French version of UMIR” (December 9, 2013).
Effective September 18, 2015, the applicable securities commissions approved amendments to Part 2 of Policy 2.1. See IIROC Notice 15-0211 – Notice of Approval –“Provisions Respecting Unprotected Transparent Marketplaces and the Order Protection Rule” (September 18, 2015).
Effective September 1, 2016, the applicable securities commissions approved amendments to repeal Rule 2.1 of UMIR and Policy 2.1, with the substance of the Policy incorporated into the new Rule 2.1 “Specific Unacceptable Activities”. See IIROC Notice 16-0122 – “Implementation of the consolidated IIROC Enforcement, Examination and Approval Rules” (June 9, 2016).
Effective July 27, 2023, the applicable securities commissions approved housekeeping amendments to UMIR to correct inaccurate referencing and typographical mistakes and to ensure consistency between the English and French versions of UMIR. See CIRO Bulletin 23-0107 – "Housekeeping Amendments to UMIR" (July 27, 2023).
In the event of a conflict between a provision of UMIR or any Policy and the provision of a Marketplace Rule or the functionality of the trading system of any marketplace, UMIR shall govern unless otherwise provided by the securities regulatory authority.
Defined Terms:
NI 14-101 section 1.1(3) – “securities regulatory authority”
UMIR section 1.1 – “marketplace”, “Marketplace Rules”, “Policy” and “UMIR”
Regulatory History:
In connection with the recognition of IIROC and its adoption of UMIR, the applicable securities commissions approved amendments Rule 11.11 that came into force on June 1, 2008 to replace the word “Rules” in the title with “UMIR” and to replace the phrase “these Rules do” with “UMIR”. See Footnote 1 in Status of Amendments
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