This means it could be a truer performance indicator. GMS has a P/S ratio of 0.41. This compares to its industry's average P/S of 0.81. Finally, we should also recognize that GMS has a P/CF ratio of 9.19. This metric focuses on a firm's operating cash flow and is often used to find stocks that are undervalued based on the strength of their cash outlook. This company's current P/CF looks solid when compared to its industry's average P/CF of 15.41. Over the past year, GMS's P/CF has been as high as 10.36 and as low as 2.27, with a median of 6.73. These are just a handful of the figures considered in GMS Inc.'s great Value grade. Still, they help show that the stock is likely being undervalued at the moment. Add this to the strength of its earnings outlook, and we can clearly see that GMS is an impressive value stock right now. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days.