Zovio ( NASDAQ:ZVO – Get Rating ) and China Online Education Group ( NYSE:COE – Get Rating ) are both small-cap business services companies, but which is the superior business? We will contrast the two companies based on the strength of their analyst recommendations, risk, profitability, earnings, institutional ownership, valuation and dividends. Insider and Institutional Ownership Get Zovio alerts: 53.0% of Zovio shares are held by institutional investors. Comparatively, 69.3% of China Online Education Group shares are held by institutional investors. 2.8% of Zovio shares are held by company insiders. Strong institutional ownership is an indication that endowments, hedge funds…