The "holds" issued Wednesday show "how much uncertainty there is with Facebook's revenue-generation business model, " said Reena Aggarwal, professor of finance at Georgetown University's McDonough School of Business, who also said tough market conditions may have been a contributing factor.

WSJ: Analysts Hit the Tepid Button on Facebook

Inside sales has been the high-growth area of sales and lead generation since the market crash of 2008 when companies scaled back travel and high cost positions in favor of a new generation of sales people, a high velocity business model, and leveraged affordable technology that companies rent instead of buy.

FORBES: Latest Inside Sales Research Shows it's All About the Leads

The company has a strong management team, relatively defensive business model, exposure to infrastructure spending, and healthy free cash flow generation.

FORBES