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.

Considering these trends, value investing is clearly one of the most preferred ways to find strong stocks in any type of market. Value investors rely on traditional forms of analysis on key valuation metrics to find stocks that they believe are undervalued, leaving room for profits.

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 China Construction Bank (CICHY Quick QuoteCICHY - Free Report) . CICHY is currently sporting a Zacks Rank #2 (Buy), as well as a Value grade of A.

Value investors also frequently use the P/S ratio. This metric is found by dividing a stock's price with the company's revenue. This is a preferred metric because revenue can't really be manipulated, so sales are often a truer performance indicator. CICHY has a P/S ratio of 1.65. This compares to its industry's average P/S of 2.03.

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