6. Allocation Priority and Order Matching 17 6.1 Phase 1: Board Lot Allocation 17 6.2 Phase 2: Re-Pricing of DRK Pegged Orders 17 6.3 Mixed Lot Allocation 17 6.4 DRK Orders and the Closing Auction 18 6.4.1 DRK order Tag Combinations 18 7. Assigning the Limit Price & Executable Price to DRK Orders 19 7.1 Assigning a Limit Price to a DRK order 19 7.2 Executable Price 19 7.3 DRK Midpoint Peg & Contra Midpoint Only Plus (CMO+) Executable Price 19 7.4 Other DRK Pegged Executable Prices 18 7.4.1 DRK order Tag Combinations 18 8. CFOing a DRK Order 20 9. Last Sale Price for DRK Midpoint Peg and CMO+ Orders 20 10. Identifying an Execution Against DRK Liquidity 20 11. Disabling an Re-enabling DRK Orders 20 11.1 Disabling of DRK Orders 21 11.2 Re-enabling DRK Orders 21 11.2.1 Symbol Level 21 11.2.2 Market Level 22 12. Order Entry 22 13. Broadcast Feed 22 13.1 Reconciliation Feed 23 13.1.1 Table 2: Summary of Order Entry and Market Data Feed Specification Changes 23 14. Appendix A: Scenarios 28 14.1 DRK Trading Scenarios 28 14.1.1 Pricing Sell-Side Dark Market Orders (With $0.25 Tick Limit)28 14.1.2 Pricing Buy-Side Dark Market Orders (With $0.50 Tick Limit)29 14.1.3 Pricing Sell-Side Dark Market Orders (With $1.00 Tick Limit)29 14.1.4 Pricing Buy-Size Dark Market Orders (With $5.00 Tick Limit)30 14.1.5 Pricing Primary Peg Sell-Side Order 31 14.1.6 P ricing Primary Peg Buy-Side Order 32 14.1.7 Pricing Aggressive Primary Peg Buy-Side Order 32 14.1.8 Pricing Passive Primary Peg Buy-Side Order 32 14.1.9 Pricing Aggressive Primary Peg Sell-Side Large Order 33 14.1.10 Pricing MPI Buy-Side Order 33 14.1.11 Pricing MPI Sell-Side Order 34 14.1.12 Pricing Midpoint Peg Buy-Side Order 34 14.1.13 Pricing Midpoint Peg Sell-Side Order 35 14.1.14 Pricing Market Peg Buy-Side Order 35 14.1.15 Pricing Market Peg Sell-Side Order 36 14.1.16 Pricing Passive Market Peg Sell-Side Order 36 14.1.17 PDL order XM – No Trade instruction triggered 38
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