Here at Zacks, our focus is on the proven Zacks Rank system, which emphasizes earnings estimates and estimate revisions to find great stocks. Nevertheless, we are always paying attention to the latest value, growth, and momentum trends to underscore strong picks.Looking at the history of these trends, perhaps none is more beloved than value investing. This strategy simply looks to identify companies that are being undervalued by the broader market. Value investors use tried-and-true metrics and fundamental analysis to find companies that they believe are undervalued at their current share price levels.On top of the Zacks Rank, investors can also look at our innovative Style Scores system to find stocks with specific traits. For example, value investors will want to focus on the "Value" category. Stocks with high Zacks Ranks and "A" grades for Value will be some of the highest-quality value stocks on the market today.Daimler AG (DDAIF) is a stock many investors are watching right now. DDAIF is currently sporting a Zacks Rank of #1 (Strong Buy), as well as an A grade for Value. The stock is trading with a P/E ratio of 7.40, which compares to its industry's average of 12.02. Over the past 52 weeks, DDAIF's Forward P/E has been as high as 22.98 and as low as 7.15, with a median of 9.13.Investors should also note that DDAIF holds a PEG ratio of 0.48. This popular metric is similar to the widely-known P/E ratio, with the difference being that the PEG ratio also takes into account the company's expected earnings growth rate. DDAIF's industry currently sports an average PEG of 0.66. Within the past year, DDAIF's PEG has been as high as 2.41 and as low as 0.47, with a median of 1.14.Value investors also frequently use the P/S ratio. This metric is found by dividing a stock's price with the company's revenue. This is a prefered metric because revenue can't really be manipulated, so sales are often a truer performance indicator. DDAIF has a P/S ratio of 0.52. This compares to its industry's average P/S of 0.54.Finally, we should also recognize that DDAIF has a P/CF ratio of 4.78. This figure highlights a company's operating cash flow and can be used to find firms that are undervalued when considering their impressive cash outlook. This company's current P/CF looks solid when compared to its industry's average P/CF of 7.28. DDAIF's P/CF has been as high as 7.64 and as low as 3.51, with a median of 5.76, all within the past year.These are just a handful of the figures considered in Daimler AG'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 DDAIF 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. Click to get this free report Daimler AG (DDAIF): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research