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Macy's reported stronger-than-expected second fiscal quarter results on Thursday and raised its full-year guidance, signaling that its ongoing turnaround strategy is beginning to gain traction. The department-store chain has been working to stabilize sales and improve profitability amid a challenging retail environment. The upbeat results and improved outlook offer a positive signal for investors who have been watching the retailer's multi-year restructuring effort, which has included store closures and a renewed focus on core locations.