Midday Movers: CSCO, DHI & More

Market Insider | What's Shaking | Stocks to Watch

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

Netgear and Cisco Systems shares are lower after the Department of Homeland Security warned of a hack threat.

Home builder D.R. Horton shares rose to a 52-week high after posting its strongest quarter in six years.

Netflix stock is higher after announcing plans to raise $400 million through a senior notes offering.

As the price of crude neared $100 a barrel, oil stocks moved up to new 52-week highs including Valero Energy, Tesoro, Marathon Petroleum andPhillips 66.

Hess shares also traded up to its 52-week high on very heavy volume as activist investor fund Elliot Management named potential nominees to the Hess board. The energy company announced plans to exit its storage and refining businesses this week and focus on exploration and production.

Danaher rose to its historic high after posting fourth-quarter earnings that rose 10.5 percent on improved sales. The medical equipment maker lowered its 2013 earnings guidance to between $3.32 and $3.47 per share from earlier guidance of $3.40 to $3.55 per share.

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—By CNBC's Lori Spechler

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