Robinhood takes a social approach to mastering the stock market

Robinhood launched a mobile app today to guide you through the dangerous woods of stock market investing.

Apple’s largest active shareholder cuts stake 10% — but keeps Google

Apple shares are down $7.26 so far today and down about $260 in the past six months.

‘Big data’ is beating design: Google stock cracks $800 plateau while Apple languishes

Since December of last year, Google stock is up 20 percent. Since December of last year, Apple stock is down 20 percent.

Apple and the stock market: ‘to say that investors are idiots, really is an unfair dig at idiots’

It's been an interesting day. Apple reported record revenue of $54.5 billion and record quarterly profit of $13.1 billion, then saw its share price drop 10 percent.

Yelp’s stock tanks after Facebook’s Graph Search debut

Yelp's stock price dropped an alarming 8 percent following the announcement of Facebook's Graph Search.

Apple’s once-mighty stock continues to crumble, sinks below $500

Fueled by concerns that iPhone 5 demand has weakened, investors are abandoning Apple, sending the company's stock under the $500-per-share mark.

Dell stock jumps 13% on rumor it could go private

No. 3 PC maker Dell's stock has skyrocketed 13 percent on a report that the company is "in talks" to go private.

Google stock soars to new all-time high above $747

Google's shares hit a new all-time high today of $747.28 as both Facebook and Apple are taking a hit.

IPhone 5, iTV talks drive Apple’s stock price to new all-time high (updated)

Apple's share price on the Nasdaq stock exchange reached a new all-time high of $648.02 at the end of trading today, a sign investors are enthused about the rumored next-gen iPhone, Apple television, and smaller iPad.

Huge wave of Facebook shares to hit market starting this week

Less than two weeks after Facebook's stock price hit a low of $20.84 comes the reminder that about two billion more shares will hit the market between now and May, 2013.

BustVille: Zynga shares down an astounding 35% in after-hours trading

The company's stock closed the day at $5.19, but it dropped, at one point, by 40 percent on news of the terrible earnings.

Let’s just agree the bubble has burst

Facebook’s post-IPO performance has been poor. But is it so poor that it will hurt the prospects for other startups?

The short answer: Almost certainly.

This is the subtext of the wave of anger and disappointment over Facebook’s stock slide …

Facebook stock sinks even more, finishes the day down nearly 10%

Facebook's stock on the Nasdaq exchange dropped by about 9.6 percent in regular trading Tuesday, a steep drop from its original IPO price of $38 a share.

Apple and Google potential additions to Dow Jones index

The Dow Jones Industrial Average has featured the same 30, large publicly traded companies since 2009. The stock market landscape has shifted significantly in the past three years, and now big tech companies like Google and Apple could be considered …

Apple’s share price surpasses Google’s for the first time

Apple is already much more valuable than rival tech company Google by market cap, but for the first time, it surpassed Google’s share price today, closing at $633.68 a share to Google’s $632.32.

Apple’s ascent over Google in share price …

Apple to announce plan for $98B cash balance Monday morning

Apple is holding a conference call bright and early Monday morning to announce plans for its large cash balance. The company is sitting on around $98 billion in cash, and investors are getting increasingly antsy and clamoring for a dividend …

Apple shares break $600 for the first time

For a moment this morning, each share of Apple stock was worth as much as a new 32GB third-generation iPad. Apple shares broke the $600 mark for the first time ever Thursday morning, hitting $600.01 before falling back a bit …

Yelp finishes IPO day strong with 63% gain

Reviews website Yelp debuted today on the New York Stock Exchange at $15 a share and closed the day at $24.52, a 63% gain from the original price.

It was questionable how well Yelp would perform, considering the company earned …

Apple’s plans for its $90B in cash: “We’re not going to have a toga party”

Apple has the best kind of problem: A sizable $90 billion in cash burning a hole in its pocket.

At the Goldman Sachs Technology and Internet Conference Tuesday, Apple CEO Tim Cook was asked why the company has not taken …