JB Were a loss-maker for NAB 28 October 2010 6:10PM NAB's investment in financial adviser JB Were turned in a loss under the bank's first year of ownership. JB Were produced a loss of $19 million, on $125 million of revenue, NAB's 2010 financial statements show. Transitional expenses may explain part of the loss, as may investment in new information systems to support the client base.NAB paid $80 million for its 80 per cent stake in JB Were, in November 2009, and may buy the remaining 20 per cent stake for $20 million in late 2012.The bank's investment in the life insurance business Aviva was more productive.NAB said Aviva made a net profit of $128 million, from net operating income of $254 million.