USER’S GUIDE TO
DEALER DATA
QUALITY –
SUMMARY OF
CORRESPONDENT’S TRADES
November 8, 2007
The Dealer Data Quality – Summary of Correspondent’s Trades
(DDQ-SC) complements the Dealer Data Quality – Summary (DDQS). The DDQ-SC
provides information to correspondent dealers that parallels the information
the DDQS provides to clearing dealers.
The DDQ-SC has the same categories of data quality
information as the DDQS, but it attributes trades to dealers differently. In
both reports, the dealer that is the subject of the report is identified by its
MSRB Number (e.g., A1234 or B1234). The DDQS counts inter-dealer trades
and customer trades cleared by the dealer, but does not count inter-dealer
trades that were cleared through another dealer. In contrast, a dealer’s DDQ-SC
counts:
- Inter-dealer trades effected by the dealer, whether the
trades were self-cleared or were cleared by any other dealer,
- Customer trades effected by the dealer, and
- Any inter-dealer trades cleared by the dealer but which do
not have an executing broker symbol (EBS) known to the MSRB.
The DDQ-SC also includes a “Lateness Breakout –
Correspondent’s Trades,” which provides detailed lateness information about the
trades.
Trades Grouped by EBS-Clearing Combinations
A dealer may use more than one EBS for trade reporting, or
may clear trades through more than one clearing dealer. The trades are grouped
together on the DDQ-SC according to each EBS-clearing ID combination that was
reported by the dealer during the month by the dealer. If a dealer reports
trades with more than one EBS or through more than one clearing dealer, each
combination is tabulated separately. Any inter-dealer trades reported without
an EBS, or with an EBS not known to the MSRB,[1]
are on the DDQ-SC report for the dealer that cleared the trades, because RTRS
cannot determine who effected the trades.
Formats of the Report
The report is available to dealers via RTRS Web. A dealer
may view or print its report from its browser, or may download the report as a
spreadsheet. In either format, separate “tabs” will show combinations of
clearing ID and EBS reported by the dealer. In the example below, the dealer
has used both “ABCD” and “OTHR” to report trades through clearing broker 0221.
Tabs at the bottom distinguish ABCD (0221) from OTHR (0221).

Exceptional Reporting Scenarios
The DDQ-SC reports certain exceptional scenarios as follows:
- Inter-dealer trades that do not have any EBS are counted
on a tab labelled, “No EBS.” As stated above, this tab is part of the clearing
dealer’s DDQ-SC report.
- If a clearing dealer erroneously puts the correspondent’s
EBS on a trade submitted for comparison, the correspondent’s report will
show this fact. If the correspondent did not effect the trade, the
correspondent should notify the clearing dealer and the clearing dealer should
correct the error.
- If a dealer submits customer trade reports through
more than one clearing dealer, the DDQ-SC breaks out the trades by each
combination. For example, if dealer ABCD reports customer trades through
dealer 0123 and also through 9876, there are tabs for ABCD (0123) and ABCD
(9876). This distinction may be useful to the dealer for information purposes,
but is not important for regulatory purposes.
- If a firm does not report any trades during a month, the
DDQ-SC is available based on its MSRB Number, but instead of the clearing
ID and EBS, the report displays “NO EBS FOUND” and shows that zero trades
were found.
Period Covered by DDQ-SC
Each DDQ-SC report covers trades processed by RTRS during
one month. DDQ-SC reports are available from October 2007 and forward. MSRB
plans to make the report available each month on or shortly after the 15th
day of the month, covering the preceding month.
Availability of DDQS and DDQ-SC Reports
Both the DDQ-SC and the DDQS reports are available to all dealers.
A dealer may obtain either or both reports through RTRS Web.
Revision History
|
Version
|
Author
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Date
|
Description
|
|
1.0
|
L. Lawrence
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November 2007
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Initial version
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