* SunEdison agreed to buy Vivint for cash and stock in July
* SunEdison "yieldco" TerraForm Power was to buy Vivint
assets
* Deal faced criticism from hedge funds, other investors
* SunEdison shares up 33 pct, Vivint's hit record low
* SunEdison agreed to buy Vivint for cash and stock in July
* SunEdison "yieldco" TerraForm Power was to buy Vivint
assets
* Deal faced criticism from hedge funds, other investors
* SunEdison shares up 33 pct, Vivint's hit record low