Comparing the current value of a company's valuation multiples, such as its price-to-earnings (P/E), price-tosales (P/S), and price-to-cash flow (P/CF), to its own historical values helps ascertain whether its stock is fairly valued, overvalued, or undervalued, whereas comparing the company relative to its peers on these parameters gives a good sense of how reasonable its stock price is. The Zacks Value Style Score (part of the Zacks Style Scores system), which pays close attention to both traditional and u ...