Here at Zacks, our focus is on the proven Zacks Rank system, which emphasizes earnings estimates and estimate revisions to find great stocks. Nevertheless, we are always paying attention to the latest value, growth, and momentum trends to underscore strong picks.

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.

Luckily, Zacks has developed its own Style Scores system in an effort to find stocks with specific traits. Value investors will be interested in the system's "Value" category. Stocks with both "A" grades in the Value category and high Zacks Ranks are among the strongest value stocks on the market right now.

One company to watch right now is ENGIE - Sponsored ADR (ENGIY Quick QuoteENGIY - Free Report) . ENGIY is currently sporting a Zacks Rank #1 (Strong Buy) and an A for Value. The stock is trading with a P/E ratio of 10.39, which compares to its industry's average of 14.63. Over the last 12 months, ENGIY's Forward P/E has been as high as 11.37 and as low as 6.67, with a median of 9.12.

Another valuation metric that we should highlight is ENGIY's P/B ratio of 1.24. The P/B is a method of comparing a stock's market value to its book value, which is defined as total assets minus total liabilities. This stock's P/B looks attractive against its industry's average P/B of 2.43. Over the past 12 months, 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.