| Ameritrade Holding Corporation |
| TA's original investment was in Datek Online Holdings Corp., a pioneer in the online brokerage indus... |
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| Creditex, Inc. |
| Creditex, Inc. is a leading provider of electronic execution services in the credit derivatives mark... |
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| Instinet Group Incorporated |
| TA's original investment was in Island ECN, a pioneer in electronic marketplaces, which was the seco... |
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| SmartStream Technologies |
| SmartStream Technologies is the market leading provider of Transaction Lifecycle Management (TLMŪ) s... |
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