Description of Mnemonic Attributes and Optional Services
Entering Firm Information
Entering Firm Name: Valid NYSE Member Firm. Will be billed for NYSE transaction fees.
• Z-Mnemonic – For orders that must be routed through a handheld for execution at the Post.
• 3-character (Non Z-mnemonic) – For orders that can go straight to the Post or to the handheld.
Clearing Firm Information
Clearing Firm Name: Valid NYSE Clearing Member Firm
Clearing Alpha: DTCC issued Clearing symbol
Clearing Number: DTCC issued Clearing number
CCG Interface Type: Member Firm/Vendor Order Management System (OMS) connected to CCG
CCG Device ID: 4-character alpha specific to CCG order entry sessions
BBSS Agencies: 2-character alpha or alpha numeric BBSS target designation (Tag 143 in Fix Message)
Drop Copy Line ID: 4-character alpha specific to the Drop Copy connection
• Reports: Drop Copy designation will receive all Execution Reports
• Admins: Drop Copy designation will receive all order specific Admins
• Orders: Drop Copy designation will receive all order information
Done For Day Messages: Enabled on a mnemonic level, a UROUT message is sent on all open day orders as
soon as the stock is closed.
Cumulative Executed Quantity and Average Price: Enabled on a mnemonic level, this service will return the
CumExQty and AvgPx on report and report corrections for an order.
Retail Member Organization (RMO): Is a member organization that has been approved by the exchange to
submit Retail Orders.
Retail Liquidity Provider (RLP): Is a member organization that has been approved by the exchange to provide
potential price improvement for Retail Orders in the form of non-displayed interest that is better than the
Best Protected Bid and Best Protected Offer.
DMM s-Quotes: These mnemonics are created for placing DMM interest.
Supplementary Liquidity Providers (SLP): Ar
e for electronic, high volume members off the trading floor
o are incented to add liquidity on the NYSE, complementing that of other quote providers.
Supplementary Liquidity Market Maker (SLMM): Are registered market makers at the exchange,
supplementing the liquidity provided by DMMs and will assist in the maintenance of a fair and orderly
market, as reasonably practicable.