While the proven Zacks Rank places an emphasis on earnings estimates and estimate revisions to find strong stocks, we also know that investors tend to develop their own individual strategies. With this in mind, we are always looking at value, growth, and momentum trends to discover great companies.

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 tried-and-true metrics and fundamental analysis to find companies that they believe are undervalued at their current share price levels.

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 value investors might notice is Yankuang Energy Group Company Limited Sponsored ADR (YZCAY Quick QuoteYZCAY - Free Report) . YZCAY is currently sporting a Zacks Rank #2 (Buy) and an A for Value. The stock has a Forward P/E ratio of 9. This compares to its industry's average Forward P/E of 10.93. Over the last 12 months, YZCAY's Forward P/E has been as high as 9.00 and as low as 3.77, with a median of 4.99.

We should also highlight that YZCAY has a P/B ratio of 0.68. The P/B ratio pits a stock's market value against 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 1.58. YZCAY's P/B has been as high as 0.82 and as low as 0.48, with a median of 0.59, over the past year.

These are only a few of the key metrics included in Yankuang Energy Group Company Limited Sponsored ADR's strong Value grade, but they help show that the stock is likely undervalued right now. When factoring in the strength of its earnings outlook, YZCAY looks like an impressive value stock at the moment.