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Threshold Securities

Threshold Securities
CHX will calculate and publish its daily list of threshold securities by 11:00 p.m. CT of each settlement day. Threshold security data will not be available on non-settlement days such as bank holidays. The CHX threshold securities list will include only those securities for which CHX is the primary listing market.

The list file can be viewed or downloaded from the FTP site below.

ftp://ftp3.chx.com/regsho/

File Name Format: CHXthyyyymmdd.txt, where yyyymmdd represents the settlement date. For example, the file for Monday, January 10 can be retrieved using the FTP address:

ftp://ftp3.chx.com/regsho/CHXth20050107.txt

Header: Symbol|Security Name|Market Category|Reg SHO Threshold Flag|Filler|Filler
Example Data: GRF|NAIC Growth Fund Inc., Common Stock|MW|Y||
Trailer: File Creation Timestamp formatted as yyyymmddhhmmss

The Market Category for CHX will always be "MW".

For questions regarding the Chicago Stock Exchange Regulation SHO data, please contact: RegSHOinfo@chx.com