September 13, 2019 16:04:51
Reference ID: C2019091302
Cboe has recently become aware of a third-party provider configuration error impacting data used to calculate the BZX Exchange Reg SHO Threshold List. As a result of this issue, as well as a Cboe issue in processing that data once it became available from the third-party vendor, data in the Reg SHO Threshold list has been either unavailable or inaccurate since the initial BZX Exchange security listing. In addition, as part of efforts to remediate this issue, column headers in the CSV download file available via the website were removed overnight on Thursday, September 12, 2019.
Effective Monday, September 16, 2019, the column headers previously available in the website CSV download will be reinstated as they were prior to September 13, 2019. Cboe continues to work to resolve the issue in accurately populating the Reg SHO Threshold List, and further notice will be sent once a resolution date is known. Until that date, the Reg SHO Threshold list will continue to remain either unpopulated via the website and website CSV file download, or inaccurate via FTP.