Joyce Leaving Knight After Steering Firm From Meltdown to Merger

Thomas Joyce, who built Knight Capital Group Inc. into one of the biggest U.S. market making firms only to see it driven to the brink of bankruptcy and then into a suitor’s arms, is leaving the company.

KCG Holdings Inc., the company created when Getco LLC completed the acquisition of Knight this week, announced the resignation in an e-mailed statement. Joyce had been executive chairman. KCG named Stephen Schuler, a Getco founder, as non-executive chairman, according to the statement.