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.

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 value investors might notice is ENGIE - Sponsored ADR (ENGIY Quick QuoteENGIY - Free Report) . ENGIY 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 10.39 right now. For comparison, its industry sports an average P/E of 14.63. ENGIY's Forward P/E has been as high as 11.37 and as low as 6.67, with a median of 9.12, all within the past year.

Investors should also recognize that ENGIY has a P/B ratio of 1.24. 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 company's current P/B looks solid when compared to its industry's average P/B of 2.43. Over the past year, ENGIY's P/B has been as high as 1.28 and as low as 0.86, with a median of 1.01.

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