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.Considering these trends, value investing is clearly one of the most preferred ways to find strong stocks in any type of market. Value investors rely on traditional forms of analysis on key valuation metrics to find stocks that they believe are undervalued, leaving room for profits.Luckily, Zacks has developed its own Style Scores system in an effort to find stocks with specific traits. Value investors will be interested in the system's "Value" category. Stocks with both "A" grades in the Value category and high Zacks Ranks are among the strongest value stocks on the market right now.One company value investors might notice is Best Buy (BBY). BBY is currently sporting a Zacks Rank of #2 (Buy) and an A for Value. The stock is trading with P/E ratio of 11.56 right now. For comparison, its industry sports an average P/E of 19.51. BBY's Forward P/E has been as high as 16.87 and as low as 11.41, with a median of 14.68, all within the past year.Investors will also notice that BBY has a PEG ratio of 1.40. This metric is used similarly to the famous P/E ratio, but the PEG ratio also takes into account the stock's expected earnings growth rate. BBY's PEG compares to its industry's average PEG of 1.98. Within the past year, BBY's PEG has been as high as 2.33 and as low as 1.26, with a median of 1.62.We should also highlight that BBY has a P/B ratio of 6.38. Investors use the P/B ratio to look at a stock's market value versus its book value, which is defined as total assets minus total liabilities. BBY's current P/B looks attractive when compared to its industry's average P/B of 11.18. BBY's P/B has been as high as 8.28 and as low as 5.55, with a median of 6.81, over the past year.Finally, our model also underscores that BBY has a P/CF ratio of 8.38. 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. BBY's current P/CF looks attractive when compared to its industry's average P/CF of 11.03. Over the past year, BBY's P/CF has been as high as 12.91 and as low as 8.18, with a median of 10.91.Value investors will likely look at more than just these metrics, but the above data helps show that Best Buy is likely undervalued currently. And when considering the strength of its earnings outlook, BBY sticks out at as one of the market's strongest value stocks. Tech IPOs With Massive Profit Potential: Last years top IPOs surged as much as 299% within the first two months. With record amounts of cash flooding into IPOs and a record-setting stock market, this year could be even more lucrative. See Zacks’ Hottest Tech IPOs 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 Best Buy Co., Inc. (BBY): Free Stock Analysis Report To read this article on Zacks.com click here.