Vianet Group plc's (LON:VNET) On An Uptrend But Financial Prospects Look Pretty Weak: Is The Stock Overpriced?

Vianet Group's stock has surged by 11% in the last three months, but its low Return on Equity (ROE) of 2.9% and poor profit retention raise concerns about its growth potential. Comparing its performance with the industry shows a worrying trend of shrinking earnings.