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 a variety of methods, including tried-and-true valuation metrics, to find these stocks.

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 Atlas Air Worldwide . AAWW is currently sporting a Zacks Rank of #2 (Buy), as well as a Value grade of A. The stock is trading with a P/E ratio of 6, which compares to its industry's average of 14.99. Over the past year, AAWW's Forward P/E has been as high as 9.17 and as low as 5.64, with a median of 7.53.

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. AAWW has a P/S ratio of 0.6. This compares to its industry's average P/S of 0.73.

These figures are just a handful of the metrics value investors tend to look at, but they help show that Atlas Air Worldwide is likely being undervalued right now. Considering this, as well as the strength of its earnings outlook, AAWW feels like a great value stock at the moment.