Tick Size FAQ Data Collection Requirements for Broker-Dealers

Chicago Stock Exchange

Description

the commencement of the Pilot, the Participants will distribute via their respective websites a list of Pilot Stocks that must be used for purposes of the data collection obligations during the Pilot and for the six months following the Pilot. Q27: Will the list of Pre-Pilot Data Collection Stocks and Pilot Stocks be updated to reflect symbol changes and other corporate actions? A27: Yes. The accuracy of each list will be evaluated and refreshed daily by each listing Participant. Participants and members of Participants should develop policies and procedures for obtaining each daily list from the Participants’ websites. Q28: If a stock declines below $1.00 during either the pre-Pilot or the Pilot Period, will the data reporting obligations continue to apply to that stock? A28: Yes. Data reporting obligations will be unaffected if a stock declines below $1.00 during either the pre-Pilot or the Pilot Period. Data will continue to be collected throughout both the pre-Pilot and the Pilot Period regardless of whether the price declines below $1.00.Quoting and trading rules for stocks priced below $1.00 are discussed in the general FAQs. Q29: Does the Plan require broker-dealer trading centers to capture timestamps in milliseconds? A29: No, the Plan does not change any timestamp granularity requirements for broker-dealers.

The Plan does require timestamps to be reported using the finest granularity captured by the trading center. Therefore, if a broker-dealer captures timestamps covered by Appendices B.I and B.II in microseconds, such timestamps must be reported in microseconds. However, if the broker-dealer only captures timestamps in seconds, then such timestamps may be reported in seconds. Q30: What is the data retention period for Members of Participants? A30: Data collected under the Plan must be retained in accordance with existing SEC and SRO record retention rules. Q31: What is the delay with which Participants will be making publically available the data pursuant to Appendices to the Plan? A31: As described in the Plan at VII(A) and VII(B), public data will be made available on a monthly basis. Data will be made available one month after the end of the month being reported. 7 October 12, 2015 .