By Martin Baccardax “While Q4 volumes were down year-over-year we successfully implemented strategic actions that drove double-digit yield improvement across the board,” said CEO Raj Subramaniam. FedEx (FDX) – Get FedEx Corporation Report shares moved higher Friday after the world’s biggest package delivery group posted better-than-expected fourth quarter earnings alongside a solid near-term profit forecast. FedEx said it passed on rising fuel costs to customers, while its broader labor costs eased from last year, allowing for improved margins in its key ground shipping unit that helped drive …