Stocks to Watch: IBM, Intel & More

Check out which companies are making headlines after-the-bell Tuesday:


Berkshire Hathaway - The stock fell in after-hours trading following news that Warren Buffett has been diagnosed with stage 1 prostate cancerand will be undergoing a two-month radiation treatment beginning in mid-July.

Intel - The Dow component posted earnings that beat estimates, with earnings of 56 cents a share excluding one-time items, on revenue of $12.9 billion. The company also added that the first Intel-based smartphone will be released in the second quarter.

Yahoo - The search-engine company reported earnings of 24 cents a share, topping expectations, on revenue of $1.08 billion.

IBM - The tech giant reported earnings of $2.78 a share,above forecasts, but revenue came in at $24.67 billion, slightly missing expectations.

Sears Holdings - The retailer announced it completed its $270 million sale of eleven stores to General Growth Properties .

Blackstone Group - Stifel Nicolaus initiated coverage of the firm with a "buy" rating and a price target of $20.

CSX - The railroad operator topped earnings expectations, thanks to improved volume and pricing.

Stryker - The medical device maker's earnings came in line with expectations, thanks to higher sales of its hip and knee implants.

Intuitive Surgical - The robotic surgical systems manufacturer posted higher-than-expected earnings, boosted by increased sales of its da Vinci surgical robots.

United Rental - The equipment rental comapny beat earnings expectations, thanks to higher volume and rental rates.

Seagate Technology - The hard drive maker posted higher earnings, thanks to an increase in revenue.

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