Regulation

Exchange Act Rule 605 Reports

To access CBSX's order execution quality reports pursuant to Regulation NMS Rule 605, please click the following link: http://www.tagaudit.com/rule5.asp?user=cbsx.

For more information regarding Rule 605, please refer to Securities Exchange Act Release 34-43590, which is available on the SEC's website via the following link: http://www.sec.gov/rules/final/34-43590.htm. The structure of data files are explained in a joint-SRO plan, which is also available on the SEC's website via the following link: http://www.sec.gov/interps/legal/slbim12rappxa.htm.