Atos shares fell after S&P lowered its ratings for the third time in less than a year, saying the IT group could face challenges or delays in addressing its liquidity shortage.

Diamondback Energy and Autry Stephens’s Endeavor announce merger as torrid dealmaking continues in the oil patch.

China controls the bulk of the world’s solar supply chain. Now, the U.S. is trying to build its own. It will be tough.

Appliance manufacturers say energy-saving efforts are pushing the limits of physics. Others say pressure spurs innovation.

Companies tend to register in their home states or in Delaware—but states like Nevada and Texas are attracting powerful shareholders seeking an alternative legal environment.

More than $70 million could be spent in bid to win everyday investors’ votes.