Take a look at some of Tuesday's morning movers:

Home Depot - The home improvement retailer earned $0.65 per share , excluding certain items, for the first quarter, matching Street estimates. Revenues were slightly shy of consensus. Home Depot also boosted its full year forecast to $2.87 per share, excluding certain items, compared to analysts’ estimates of $2.92. The company says warm weather and strong demand for core products helped its first quarter, but investor disappointment with the report could impact both Home Depot and rival Lowe's Co.

Dick's Sporting Goods - The sporting goods retailer earned $0.45 per share for the first quarter, seven cents above estimates. It also raised its full-year forecast to $2.45 to $2.48 per share, versus analyst forecasts of $2.43.

Though Facebook is not yet trading, it’s on top of today’s list of stocks to watch. Sources tell CNBC the company has increased the price range of its upcoming initial public offering to $34 to $38 per share from the prior $28 to $35. That means Facebook’s ultimate post-IPO valuation could exceed $100 billion.

Groupon - The company reported first-quarter profit of two cents per share, compared to Street estimates of $0.01. Its revenue of $559 million was also above expectations of $531 million, and an upbeat forecast is also boosting investor sentiment.

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