The Canadian dollar rallied against its U.S. rival, flipping into positive territory, after data showed the Canadian economy had expanded at a faster pace than expected in February. Canada's gross domestic product by industry, a scorecard for economic health, grew 0.4% in February, compared with economists' consensus estimates surveyed by FactSet for growth of 0.3% in the month. GDP had previously contracted by 0.15%. February's expansion was driven by a rebound in Canada's energy sector, including oil and gas extraction. On an annualized basis, GDP grew 3%. The U.S. dollar last bought C$1.2842, little changed from Monday's level but in negative territory.