This screen ranks profitable stocks on the Toronto Stock Exchange by price-to-earnings ratio, lowest first, and shows the 100 cheapest. A low P/E can mean the market is overlooking a company, but it can also reflect a one-time gain, a cyclical earnings peak or real business risk. Check whether earnings are sustainable, and compare the P/E with the company's own history and its industry. Prices are in Canadian dollars, and the list covers TSX-listed stocks with at least C$1 million in average daily trading value.