Investment bank Crosby Financial Holdings says it is restructuring its businesses in order to concentrate on its core business of investment banking. It is to end margin-lending activities and to combine into the company's portfolio management group its advisory services for individuals of high net worth. Crosby said: 'The firm has recently undertaken a strategic review of its activities and has come to the view that its margin lending business is not ideally placed alongside businesses concentrating on fee generation.' The decision to cease margin-lending activities comes in the wake of the collapse of local brokerage CA Pacific, which threw into limbo the account balances of hundreds of margin-account holders. Crosby said that over the past few months it has been steadily reducing its margin-lending book, which now stood at US$10 million. 'The Crosby group has not incurred any losses in its margin-lending activity,' it said. It is to concentrate on advisory and fee-driven business.