Knight Trading Group, Inc. is a securities brokerage firm.

The original action charges that Defendants violated federal securities laws by issuing a series of materially false and misleading statements to the market throughout the Class Period which statements had the effect of artificially inflating the market price of the Company's securities.

According to the Company’s FORM 10-K for the Fiscal Year Ended December 31, 2003, following consolidation, these actions comprised one lawsuit in U.S. District Court in New Jersey entitled Roth et al. v. Knight Trading Group, Inc. et al (“Roth”). In Roth, the Plaintiffs asserted claims under Section 10(b) and Rule 10b-5 and Section 20(a) of the federal securities laws based on allegations by individuals who purchased the Company’s common stock during a defined period of time that the Company, among other things, failed to reveal the existence of the purported improper trading practice alleged in the KEM Arbitration. Pursuant to Court Order, dated November 7, 2003, this matter was dismissed with prejudice.