| Relationships | Role | Relationship Start | Relationship End |
| Td Ameritrade Online Holdings Corp. | Parent | 6/30/2007 | |
| Td Ameritrade Online Holdings Corp. | Parent | 4/21/2006 | 6/29/2007 |
| Td Waterhouse Group, Inc. | Parent | 6/28/1999 | 4/20/2006 |
| Td Waterhouse Holdings, Inc. | Parent | 10/13/1994 | 6/27/1999 |
| Td Waterhouse Canadian Call Center Inc. | Subsidary | 8/28/2002 | 10/27/2005 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Washington Discount Brokerage Corp. | Seller | Discontinued | 6/15/1998 | ||
| Green Line Investor Services (U.S.A.) Inc. | Seller | Discontinued | 2/25/1997 |