While the proven Zacks Rank places an emphasis on earnings estimates and estimate revisions to find strong stocks, we also know that investors tend to develop their own individual strategies. With this in mind, we are always looking at value, growth, and momentum trends to discover great companies.Of these, value investing is easily one of the most popular ways to find great stocks in any market environment. Value investors use tried-and-true metrics and fundamental analysis to find companies that they believe are undervalued at their current share price levels.Zacks has developed the innovative Style Scores system to highlight stocks with specific traits. For example, value investors will be interested in stocks with great grades in the "Value" category. When paired with a high Zacks Rank, "A" grades in the Value category are among the strongest value stocks on the market today.One stock to keep an eye on is Danaos (DAC). DAC is currently sporting a Zacks Rank of #2 (Buy), as well as a Value grade of A. The stock is trading with P/E ratio of 3.83 right now. For comparison, its industry sports an average P/E of 4.88. Over the past year, DAC's Forward P/E has been as high as 5.30 and as low as 1.12, with a median of 3.83.Another notable valuation metric for DAC is its P/B ratio of 0.88. The P/B is a method of comparing a stock's market value to its book value, which is defined as total assets minus total liabilities. This stock's P/B looks attractive against its industry's average P/B of 1.06. Over the past 12 months, DAC's P/B has been as high as 1.19 and as low as 0.22, with a median of 0.84.Finally, we should also recognize that DAC has a P/CF ratio of 1.70. 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 6.31. DAC's P/CF has been as high as 4.06 and as low as 0.79, with a median of 1.92, all within the past year.Value investors will likely look at more than just these metrics, but the above data helps show that Danaos is likely undervalued currently. And when considering the strength of its earnings outlook, DAC sticks out at as one of the market's strongest value stocks. 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 Danaos Corporation (DAC): Free Stock Analysis Report To read this article on Zacks.com click here.