While up more than 2% by 1pm on Friday, shares of Vivint Solar still looked set to end the week down nearly 20%, following news that law firm Pomerantz LLP had filed a class action lawsuit against Vivint Solar in New York federal court.

A similar lawsuit was filed several weeks ago by the Rosen Law Firm.

"We are aware that two securities class action suits have been filed by two individual plaintiffs," a Vivint Solar spokeswoman said in response to a request for information.

"We