Companies' stock value can be hurt by greenhouse emissions

How much greenhouse gas a company produces has a significant effect on the value of the company's stock, according to a new study by researchers at the University of California, Davis; University of California, Berkeley; ...

Apple market value hits $700 bn

A rise in Apple shares Tuesday pushed the market value of the trend-setting US tech icon above $700 billion, becoming the first company to hit that milestone.

Icahn presses Apple for $150 bn share buyback

Activist investor Carl Icahn said Tuesday he wants Apple to launch an additional share buyback of $150 billion to help boost the company's struggling stock value.

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