SolarCity accepts Tesla's $2.6 billion offer; both shares fall

Tesla's stock swap offer valued SolarCity at $25.37 a share, or $200 million less than the initial proposal that Musk outlined in June, before advisers to the companies had done due diligence. SolarCity shares closed last Friday at about 5 percent above that level. Tesla's offer represents about half of SolarCity's value a year ago, a tumble the reflected its slowing growth, complex financial structure and the increased scrutiny of government incentives needed to make rooftop solar pay off for h