U.S. bank Citigroup (C.N) is targeting market-share gains in equities in 2015, its European head of equities told Reuters, pointing to fresh technology investment and new hires as financial-market trading picks up. The comments echo a more optimistic stance from trading desks at global investment banks after a bumper quarter boosted by the European Central Bank’s announcement of a bond-buying scheme to spur growth. “We are not pulling back in equities — quite the opposite,” Tim Gately said in an interview.