in a nutshell .. (link supplied for you to review

in a nutshell .. (link supplied for you to review on your time line)

REG SHO Overview

As defined in Rule 203(c)(6) of Regulation SHO, a "threshold security" is any equity security of any issuer that is registered under Section 12 of the Exchange Act, or that is required to file reports under Section 15(d) of the Exchange Act (commonly referred to as reporting securities), where, for five consecutive settlement days:

There are aggregate fails to deliver at a registered clearing agency of 10,000 shares or more per security;
The level of fails is equal to at least one-half of one percent of the issuer's total shares outstanding; and
The security is included on a list published by a self-regulatory organization (SRO).

A security ceases to be a threshold security if it does not exceed the specified level of fails for five consecutive settlement days.

http://www.nasdaqtrader.com/trader.aspx?id=RegSHOThreshold



FINRA Rule 4320 defines threshold securities as any equity security of an issuer that is not an SEC reporting security and, for five consecutive settlement days, has:

aggregate fails to deliver at a registered clearing agency of 10,000 shares or more; AND
a reported last sale during normal market hours (9:30 a.m. to 4 p.m., ET) for the security on that settlement day that would value the aggregate fail to deliver position at $50,000 or more.


Market Category Counts OTCBB (U) Other OTC (u) NASDAQ (Q,G,S)


threshold is updated each evening at approximately 11 PM

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