The market tends to accord a high price-to-earnings (P/E) valuation for companies that exhibit greater potential for growth. However, when the performances of such companies fail to meet expectations, the drop in earnings per share resulting in a higher P/E valuation would act as a double-blow to the share price, often leading to a subsequent plunge that could sometimes be jaw-dropping. At one time the historical P/E ratio of Q&M Dental Group (Singapore) (Q&M Dental) went as high as 67 times when its shares were trading at $0.98 back in May 2015. Nonetheless, the ensuing correction since then brought the share price back down to $0.505 as at 9 July 2018, which translated to a more reasonable P/E ratio at 16.9 times. Once a bright star of yesterday, we take a look at this leading pr