Here at Zacks, we focus on our proven ranking system, which places an emphasis on earnings estimates and estimate revisions, to find winning stocks. But we also understand that investors develop their own strategies, so we are constantly looking at the latest trends in value, growth, and momentum to find strong companies for our readers.

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 fundamental analysis and traditional valuation metrics to find stocks that they believe are being undervalued by the market at large.

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 company value investors might notice is Reinsurance Group of America (RGA). RGA is currently sporting a Zacks Rank of #2 (Buy), as well as an A grade for Value.

We should also highlight that RGA has a P/B ratio of 1.34. 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. This stock's P/B looks solid versus its industry's average P/B of 1.91. RGA's P/B has been as high as 1.51 and as low as 1.18, with a median of 1.34, over the past year.

Value investors also love the P/S ratio, which is calculated by simply dividing a stock's price with the company's sales. This is a popular metric because sales are harder to manipulate on an income statement, so they are often considered a better performance indicator. RGA has a P/S ratio of 0.68. This compares to its industry's average P/S of 0.95.

Value investors will likely look at more than just these metrics, but the above data helps show that Reinsurance Group of America is likely undervalued currently. And when considering the strength of its earnings outlook, RGA sticks out at as one of the market's strongest value stocks.

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