The chief technology officer at KCG Holdings is to leave the electronic trading firm to pursue interests outside the financial markets, bringing to an end a 14-year career in the sector.

Jon Ross, who is responsible for all of KCG's technology, information operations and infrastructure, will step down and be succeeded by Mike Blum, KCG's global head of client technology, on October 1, the company said in its second-quarter results on July 21.