Sam Mattera

Intel is lagging the Dow Jones, while Yahoo! and Twitter are volatile.

The smartwatch revolution seems poised to grow the fragmentation gap between Google's Android and Apple's iOS.

Intel, Pandora, and Google are active tech movers on Tuesday.

Samsung's latest smartphone replicates a feature offered by Apple's current flagship, but critics have found the feature largely useless. Why eBay could be the company most exposed.

Shares of WebMD and F5 Networks are rising alongside the Dow Jones.

Samsung may not be selling as many high-end handsets, but it's beating Apple in one important arena.

Google could have a difficult time competing with its hardware partners, including Samsung and Sony.

One of Nintendo's biggest games could've saved the Wii U -- now it could be its undoing.

Netflix could be at a disadvantage, as it depends on Amazon, Sony, and Microsoft to distribute its service.

Dow Jones components AT&T and Verizon Communications control most of the U.S. wireless industry -- but for how much longer?

Amazon has surpassed Apple and Google in the TV space, but its lead could be short-lived.

Microsoft and Intel could see a sales boost, but Google is looking to take advantage of the change.

Apple, Samsung, and the myth of the "incremental update."

CBS' premium cable network is slowly becoming more like Netflix and Time Warner's HBO.

Shares of Sohu and Baidu are surging even as Dow Jones component Microsoft falls.

Amazon's FireTV could pressure Sony and Microsoft in the years ahead.

For as long as there's been Windows, Microsoft has charged for it. But thanks to Google, those days are over.

Hedge fund legend David Einhorn runs Greenlight Capital. Although it's mostly a long fund, he has made some controversial short sales in recent years, including Keurig Green Mountain, Herbalife, and Chipotle Mexican Grill.

Shares of Yahoo! and Groupon were slipping as Intel outperformed the Dow Jones.

Amazon, Google, Apple, and TiVo all have their offerings, but which set-top box is the best on the market?