UBS Group's stock has surged 154% over the past five years, with a total shareholder return (TSR) of 199%, boosted by dividends. The company's earnings per share grew at 6.1% annually, while the share price increased at a higher rate, reflecting improved investor sentiment. Recently, UBS Group achieved a TSR of 29% in the last year, indicating strong performance momentum. However, potential investors should be aware of three warning signs in the investment analysis.