TSX Dark Liquidity Guide

21 FEATURE Description FIX OE Broadcast Feed TL1 TL2 TQL1 (Quantum Feeds) TQL2 (Quantum Feeds) DRK Limit An order with full pre-trade anonymity which will only execute at or inside the NBBO TSXUndisplayed (7726)=Y Indicates the order is completely non- displayed Order responses: Fully encrypted Trade Report: Undisplayed (604) = Y Added to private content LastSale (114) The execution price which may occur at an invalid trading increment Price (41) The execution price which may occur at an invalid trading increment Display volume (150) Set to zero for the side which is dark Message type A - Trade: Trade Price will be the execution price which may occur at an invalid trading increment Message type H - Trade Cancellation: Trade Price will be the execution price which may occur at an invalid trading increment Trade Report: LastSale (114) The execution price which may occur at an invalid trading increment Price (41) The execution price which may occur at an invalid trading increment Display volume (150) Set to zero for the side which is dark Equity Trade: LastSale The execu- tion price which may occur at an invalid trading increment Price The execu- tion price which may occur at an invalid trading increment Equity Trade Cancelled: LastSale The execu- tion price which may occur at an invalid trading increment Price The execu- tion price which may occur at an invalid trading increment Trade Report: LastSale The execution price which may occur at an invalid trading increment Price The execution price which may occur at an invalid trading increment Buy Display Volume Set to zero if side is dark Sell Display volume Set to zero if side is dark DRK Order Eligibility by Symbol Notification of DRK eligibility for the symbol No impact Symbol status: AcceptUndis- played (605)=Y Indicates if the symbol is eligible to trade DRK orders Stock status: AcceptUndisplayed (605)=Y Intraday notification if the DRK eligibility for the symbol has changed No impact Symbol status: AcceptUndis- played (605)=Y Indicates if the symbol is eligible to trade DRK orders Stock status: AcceptUndis- played(605)=Y Intraday noti- fication if the DRK eligibility for the symbol has changed No impact No impact Delayed Active Identifier An identifier to notify the participant that they were assigned the active side of the trade due to a re-pricing or triggering mechanism Fill Report: TSXExchangeAdmin (6780) Position 7: ‘A’ Delayed Active Trade Report: Exchange-Admin (380) Position 7: ‘A’ Delayed Active No impact No impact No impact No impact

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