AUD/USD: The Australian dollar surged, extending gains for the third straight session, despite data showing fourth-quarter construction spending unexpectedly eased. The Aussie trades 0.1 percent up at 0.7187, having hit a high of 0.7198; it’s highest since February 21. Investors will continue to track overall market sentiment, ahead of U.S. economic releases. Immediate support is seen at 0.7103 (Feb.19 Low), a break below targets 0.7060 (Feb.8 Low). On the upside, resistance is located at 0.7206 (Feb. 21 High), a break above could take it near 0.7245 (Feb. 6 High).