The proven Zacks Rank system focuses on earnings estimates and estimate revisions to find winning stocks. Nevertheless, we know that our readers all have their own perspectives, so we are always looking at the latest trends in value, growth, and momentum to find strong picks.Of these, perhaps no stock market trend is more popular than value investing, which is a strategy that has proven to be successful in all sorts of market environments. Value investors use fundamental analysis and traditional valuation metrics to find stocks that they believe are being undervalued by the market at large.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.One company to watch right now is Tyson Foods (TSN). TSN is currently sporting a Zacks Rank of #2 (Buy) and an A for Value. The stock holds a P/E ratio of 11.30, while its industry has an average P/E of 15.98. Over the past year, TSN's Forward P/E has been as high as 13.20 and as low as 9.76, with a median of 11.63.We should also highlight that TSN has a P/B ratio of 1.63. The P/B ratio pits a stock's market value against its book value, which is defined as total assets minus total liabilities. This company's current P/B looks solid when compared to its industry's average P/B of 2.57. Within the past 52 weeks, TSN's P/B has been as high as 1.83 and as low as 1.34, with a median of 1.55.Value investors also use the P/S ratio. The P/S ratio is is calculated as price divided by sales. This is a prefered metric because revenue can't really be manipulated, so sales are often a truer performance indicator. TSN has a P/S ratio of 0.6. This compares to its industry's average P/S of 0.68.Finally, investors should note that TSN has a P/CF ratio of 7.74. This data point considers a firm's operating cash flow and is frequently used to find companies that are undervalued when considering their solid cash outlook. TSN's P/CF compares to its industry's average P/CF of 13.81. Over the past year, TSN's P/CF has been as high as 8.70 and as low as 6.23, with a median of 7.73.These are only a few of the key metrics included in Tyson Foods's strong Value grade, but they help show that the stock is likely undervalued right now. When factoring in the strength of its earnings outlook, TSN looks like an impressive value stock at the moment. Bitcoin, Like the Internet Itself, Could Change Everything Blockchain and cryptocurrency has sparked one of the most exciting discussion topics of a generation. Some call it the “Internet of Money” and predict it could change the way money works forever. If true, it could do to banks what Netflix did to Blockbuster and Amazon did to Sears. Experts agree we’re still in the early stages of this technology, and as it grows, it will create several investing opportunities. Zacks’ has just revealed 3 companies that can help investors capitalize on the explosive profit potential of Bitcoin and the other cryptocurrencies with significantly less volatility than buying them directly. See 3 crypto-related stocks 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 Tyson Foods, Inc. (TSN): Free Stock Analysis Report To read this article on Zacks.com click here.