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 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 KB Home (KBH). KBH is currently sporting a Zacks Rank of #2 (Buy) and an A for Value. The stock has a Forward P/E ratio of 8.28. This compares to its industry's average Forward P/E of 10.84. Over the past 52 weeks, KBH's Forward P/E has been as high as 12.47 and as low as 2.96, with a median of 10.02.Investors should also recognize that KBH has a P/B ratio of 1.26. The P/B ratio is used to compare a stock's market value with its book value, which is defined as total assets minus total liabilities. This stock's P/B looks solid versus its industry's average P/B of 1.27. Over the past 12 months, KBH's P/B has been as high as 1.49 and as low as 0.41, with a median of 1.25.Value investors also love the P/S ratio, which is calculated by simply dividing a stock's price with the company's sales. Some people prefer this metric because sales are harder to manipulate on an income statement. This means it could be a truer performance indicator. KBH has a P/S ratio of 0.69. This compares to its industry's average P/S of 0.79.These figures are just a handful of the metrics value investors tend to look at, but they help show that KB Home is likely being undervalued right now. Considering this, as well as the strength of its earnings outlook, KBH feels like a great value stock at the moment.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 KB Home (KBH): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research