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 stock to keep an eye on is Sasol (SSL Quick QuoteSSL - Free Report) . SSL is currently sporting a Zacks Rank #1 (Strong Buy), as well as a Value grade of A. The stock is trading with P/E ratio of 3.51 right now. For comparison, its industry sports an average P/E of 10.47. Over the past 52 weeks, SSL's Forward P/E has been as high as 3.78 and as low as 1.58, with a median of 2.39.

SSL is also sporting a PEG ratio of 0.35. This figure is similar to the commonly-used P/E ratio, with the PEG ratio also factoring in a company's expected earnings growth rate. SSL's industry currently sports an average PEG of 0.69. Within the past year, SSL's PEG has been as high as 0.38 and as low as 0.10, with a median of 0.15.

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