© 2001 - 2020,  Tellefsen and Company, L.L.C.

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Our Client Segments include major:

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  • Asset management firms

  • Equity, options and futures exchanges

  • Central clearing corporations

  • Financial technology services providers

  • Futures commission merchants

  • Hedge funds

  • Inter-dealer brokers

  • Investment banks

  • Market regulators

  • Proprietary trading firms

  • Securities broker-dealers

  • Swap dealers

  • Swap execution facilities