BNP blamed the surprise one-off charge on highly volatile post-crisis stock markets that had taken AXA shares below their book value. BNP owns 5.2 percent of AXA, Reuters data showed.
Overall 2010 results for BNP saw revenues and profits rise on the back of the bank's strong retail bank and integration of Belgium-focused crisis acquisition Fortis. The group raised its Fortis synergy target to 1.2 billion euros, from 900 million.
For 2011, BNP expects a slight decline in loan-loss provisions in key Europe markets like France, Belgium and Italy as the risk environment improves, Chief Executive Baudouin Prot told Reuters television, adding acquisitions were not a focus.
I'll be very blunt; at the moment, we are not very acquisitive, Baudouin Prot said in an interview. This year we will concentrate on organic growth.
BNP reported fourth-quarter net income of 1.55 billion euros, up 13.6 percent. Consensus forecasts had been expecting 1.73 billion, according to a Reuters poll of 11 analysts.
Group revenues rose 2.6 percent in the quarter, to 10.3 billion euros, missing forecasts of 10.5 billion.
Shares of BNP hit an 11-month high on Wednesday after smaller rival Societe Generale
Like SocGen, BNP said it would raise its dividend, to 2.1 euros per share, from 1.5 euros in 2009.