Notice Rule

Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend Rule 11.190(g) To Incrementally Optimize and Enhance the Effectiveness of the Quote Instability Calculation in Determining Whether a Crumbling Quote Exists

National Securities Exchanges, Investors Exchange LLC (IEX)

Public Comments

Last Reviewed or Updated: April 13, 2018

Public Comments Due

May 10, 2018

File Number

SR-IEX-2018-07

Rule Type

Notice

Release Number

34-83048

SEC Issue Date

April 13, 2018

Federal Register Publish Date

April 19, 2018

Document Citation

83 FR 17467