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Re:Trading Halted in Nasdaq-Listed Securities Due to Technic... by Kranar on Thursday August 22, 2013 @10:59PM (#6261444)
Nah the poster above you is right for all cases. Reg NMS only protects the top of book quote regardless of the time in force specification.

Source is page 140 of the following SEC publication on Reg NMS:

http://www.sec.gov/rules/final/34-51808fr.pdf

"Over our dissent, the majority voted to adopt Regulation NMS on April 6, 2005, approving a trade-through rule protecting quotations at the ‘‘top of book.’’"

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