Citi has hired an ex-Credit Suisse electronic trading exec to boost its share in a $42 billion market (C)

REUTERS/Brendan McDermid Citigroup has filled a key vacancy on its stock-trading team, hiring a new US head of electronic cash trading. Dmitry Bulkin joins Citi after nearly 15 years at Credit Suisse, where he was most recentlyhead of liquidity strategy and market structure for US equity trading. Bulkin fills a hole from the structural reorganization Citi's equities unit underwent in March. Citi has been investing heavily in its equities business in recent years in an effort to break into the to...