Scott O'Malia was named CEO of the International Swaps and Derivatives Association, the organization announced Wednesday.
He replaces Robert Pickel, who announced in April he would resign.
The announcement comes two days after Mr. O'Malia resigned as commissioner of the Commodities Futures Trading Commission. His resignation, in a letter to President Barack Obama on Monday, is effective Aug. 8.
Mr. O'Malia will join ISDA on Aug. 18 and also will serve as a director of the group.
Mr. Pickel will remain at ISDA until Mr. O'Malia assumes the CEO post. He had said in April that he would “explore other opportunities,” upon leaving the ISDA, a global organization representing participants in over-the-counter derivatives markets.