BRF Brasil Foods ( BRFS) notched up a 7.4% gain. Zacks Investment Research recently reaffirmed its neutral rating on the stock. Meanwhile, the company announced that its 2010 profit surged by 125% and sales were up 8.3% as compared to 2009 levels. Meanwhile, during the year, the company's market capitalization was up 21%. Energy stocks Ultrapar Participacoes ( UGP) and Petroleo Brasileiro ( PBR) rose 5.6% and 4.5%, respectively. Petrobras recently revealed an update related to its own capital interest distribution for 2010 with the fifth interim payment being $0.09 per share. Heading the losers' list was major airline Gerdau ( GGB), declining 5.3% last week after the stock was downgraded by TheStreet Ratings from buy to hold. Net Servicos de Comunicacao ( NETC) lost 4.3%. Embraer ( ERJ) shed 3.4% after the company provided guidance below analysts' estimates. For 2011, the company estimates net sales at $5.6 billion and EBIT at $420 million. Analysts polled by Reuters expect the company to report $5.9 billion sales on EBIT of $483 million. Companhia Brasileira De Distribuicao ( CBD) dipped 1.4% past week. Brazilian supermarket sales recorded a decline of 7.1% in February 2011 as compared to the previous month. However, as compared to the year-ago month it was up 2.8% in real terms.