Shares of Walmart (WMT) are trading higher on Thursday after the retail giant beat analyst estimates in its first quarter earnings report. The company saw same-store sales rise 3.8% during the quarter, while e-commerce sales witnessed a 22% year-over-year growth. Walmart also raised its full-year sales and profit guidance, boosting shares in today's trade.

Yahoo Finance's Brian Sozzi breaks down the key drivers behind Walmart's successful first quarter performance.

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This post was written by Angel Smith