I thought Scottrade but I think NITE is used by with any of the discount brokerage houses being a primary wholesaler. Better ask someone who knows though. This is not my area of expertise. (Not really sure what my area of expertise is).
Scottrade. Mr. Riney, the president of Scottrade, is a Director of Knight, and has beneficial ownership over 1,646,210 shares of our Class A Common Stock. For the year ended December 31, 2006, Scottrade was the source of 10.9% of the Company’s U.S. equity dollar volume traded. During the same period, payment for order flow by us to Scottrade equaled approximately $6.6 million, representing less than 5% of the Company’s or Scottrade’s consolidated gross revenues for 2006.