sao paulobb seguridade participacoes sas shares rose 27 after the brazilian insurer said it formed a partnership with a bank to sell some insurance products the shares rose to 2627 reais the equivalent of 551 and are up 23 from the start of this year through thursdays close brazils benchmark ibovespa stocks index was up 01 at the same time bb seguridade which is controlled by brazilian lender banco do brasil sa said friday morning its brasilprev unit had agreed with banco modal sa to sell retirement plans via banco modals sales platform the partnership will expand bb seguridades sales efforts to reach new clients the insurer said the partnership is the ninth formed by the insurer as part of its strategy of diversifying its sales and distribution channels