QR what? Reading this in a recent email from a friend of mine who I have always thought to be super switched on to high-tech and is a Psych. PhD and TV star no less – I thought I’d try and de-mystify ...

1 Day TGT -0.81% DJIA 0.02% S&P 500 0.41% Retail/Wholesale 0.05% The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum ...