UK investment bank Collins Stewart has hired an ex-Deutsche bank telecoms analyst to help launch its own coverage of the sector in the US as new research predicts bulge-bracket firms will continue to lose market share to smaller rivals in providing research to buyside clients.

Collins Stewart, which is expanding its equities business in the US, has appointed Gregory Miller as a managing director and telecommunications services analyst. Miller previously worked as a managing director in Deutsche Bank's equity research team covering the sector.