Stock market


Both companies are still worth more than half a trillion each.


A drop almost as fast as the acceleration in a Tesla.


Dorsey is giving away 1 percent of the company.


“Believe it or not, we can see the finish line,” said CFO Ken Goldman.


Consumer Reports says the 2015 Model S “is likely to involve a worse-than-average overall problem rate.”


Twitter stock traded below its IPO price for the first time Thursday.


The public vote of confidence has pushed Twitter stock up more than 9 percent.


Fake news leads to stock spike.


That was quick.


First-quarter revenue was ahead of expectations, but operating profit dropped 61 percent.


Spark Gift lets you send someone shares of a stock, in denominations as low as $20.




Don’t forget about Yahoo Japan. And Softbank. And Masa Son.


Can you say tax free?


Also because Wall Street has the focus of a gnat.


What is the Silicon Valley fixture up to?


Uh oh. “This quarter we over-forecasted membership growth.”


Wayfair has been spending a ton on TV commercials and other advertising.


The split should improve hiring and fortify the company amid a recent onslaught of competition.


Half a million people are waiting to use a financial app.


Can Yahoo CEO Marissa Mayer make it rain? Or will she get soaked?


A pretty picture is worth ... well, the online content distribution company is not saying!


Concern over new products and cloud security weighed on the stock.


Sharing the wealth.


CEO Dick Costolo shows a wary Wall Street who is boss.


Egotistical leaders may drive up stock prices -- for a while.


The continued poor performance puts pressure on execs like ad tech head Scott Burke and sales head Ned Brody.


Amazon’s stock is trading down four percent since its post-phone release peak.


Ali Rowghani will have strategic adviser role. Translation: He’s gone.


Can you say reorg? Big changes ahead for the social communications company.


Pro tip: Money still can’t buy happiness. (It can buy marshmallows, though.)


Should Silicon Valley panic yet? Probably. Will it? Not yet.


A tiny but lucrative loophole that is up to the discretion of the Chinese Internet giant.


The real impact of the e-commerce giant -- already a behemoth in China -- has yet to be felt here. But it’s coming.


Managing money becomes more bearable when you keep score and get smart advice.

