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<!--  Creation date: 2009-11-05T03:32Z -->
<!--  Copyright (c) 2005-2009 EDGAR Online, Inc. All Rights Reserved. -->
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        <link:definition>101 - Statement - Statement Of Financial Position Classified</link:definition>
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        <link:definition>102 - Statement - Statement Of Financial Position Classified (Parenthetical)</link:definition>
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        <link:definition>103 - Statement - Statement Of Income Securities Based Income</link:definition>
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        <link:definition>104 - Statement - Statement Of Shareholders Equity And Other Comprehensive Income</link:definition>
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        <link:definition>105 - Statement - Statement Of Shareholders Equity And Other Comprehensive Income (Parenthetical)</link:definition>
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        <link:definition>106 - Statement - Statement Of Cash Flows Indirect Securities Based Operations</link:definition>
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        <link:definition>107 - Disclosure - 1. Basis of Presentation</link:definition>
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        <link:definition>108 - Disclosure - 2. Business Combinations</link:definition>
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        <link:definition>109 - Disclosure - 3. Performance Bonds and Security Deposits</link:definition>
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        <link:definition>110 - Disclosure - 4. Intangible Assets and Goodwill</link:definition>
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        <link:definition>111 - Disclosure - 5. Long-Term Investments</link:definition>
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        <link:definition>112 - Disclosure - 6. Debt</link:definition>
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        <link:definition>113 - Disclosure - 7. Restructuring</link:definition>
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        <link:definition>114 - Disclosure - 8. Contingencies</link:definition>
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        <link:definition>115 - Disclosure - 9. Guarantees</link:definition>
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        <link:definition>116 - Disclosure - 10. Stock-Based Payments</link:definition>
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        <link:definition>117 - Disclosure - 11. Fair Value Measurements</link:definition>
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        <link:definition>118 - Disclosure - 12. Earnings Per Common Share</link:definition>
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        <link:definition>119 - Disclosure - 13. Subsequent Events</link:definition>
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        <link:definition>120 - Disclosure - Document Information</link:definition>
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        <link:definition>121 - Disclosure - Entity Information</link:definition>
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        <link:definition>122 - Disclosure - Common Domain Members</link:definition>
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