Notice Rule

Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Extend the Pilot Period of the Trading Pause for Individual Stocks Contained in the Standard & Poor's 500 Index, Russell 1000 Index, and Specified Exchange Traded Products That Experience a Price Change of 10% or More During a Five-Minute Period

National Securities Exchanges, Nasdaq BX, Inc. (BX)

Last Reviewed or Updated: April 4, 2011