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. RGA has a P/S ratio of 0.71. This compares to its industry's average P/S of 1.05. 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.