Why does mobile advertising remain a challenge for Google?

A decline in ad rates is proving to be a challenge for Google, which is still trying to find ways to increase its mobile earnings. In 4Q, the cost per click on ads fell 2% from the quarter before.

Why advertising is the key word for Google’s business

Traffic acquisition costs (or TAC), the portion of revenues shared with Google's partners, increased to $3.31 billion in 4Q 2013, compared to $3.08 billion in the fourth quarter of 2012.

Must-know: Apple’s valuation versus Google and Microsoft

Apple's stock is trading at a forward P/E of 12.5x, which is lower than its main peers, Google (GOOG) and Microsoft (MSFT).

Why Carl Icahn urges Apple to consider repurchasing more shares

In 2012, Apple’s board authorized a program to repurchase up to $10 billion of the company's common stock, beginning in 2013.

Will Apple’s deal with China Mobile boost slowing iPhone sales?

Since Apple introduced the first iPhone in 2007, the flagship product has accounted for approximately 50% of Apple's total revenues. In 1Q 2014, the company sold 51 million iPhones.

Why Apple’s ecosystem is its biggest competitive advantage

Apple CEO Tim Cook said at a Goldman Sachs conference last year that Apple can be distinguished from other companies due to the company's expertise in software, hardware, and services.
Apple premium pricing

Apple’s Premium Pricing Strategy, Product Differentiation

Steve Jobs’s vision for Apple was always to create a premier product and charge a premium price. Here's how that strategy has worked out.

A steep drop: Twitter’s 4Q13 financial highlights and 2014 guidance

Twitter's 4Q13 earnings figures seemed to meet analysts' expectations, but the stock dropped sharply. There's disparity in the range of valuation, as Twitter remains relatively new.

Must-know: Why did JANA Partners open a position in Equinix?

Equinix Inc. (EQIX) accounted for a 4.33% position, according to JANA's 3Q 2013 portfolio. The investor letter stated the fund started building its position late in the second quarter.