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.

Considering these trends, value investing is clearly one of the most preferred ways to find strong stocks in any type of market. 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 stock to keep an eye on is Concrete Pumping Holdings (BBCP Quick QuoteBBCP - Free Report) . BBCP is currently holding a Zacks Rank #2 (Buy) and a Value grade of A.

Value investors also use the P/S ratio. The P/S ratio is calculated as price divided by sales. This is a preferred metric because revenue can't really be manipulated, so sales are often a truer performance indicator. BBCP has a P/S ratio of 1.24. This compares to its industry's average P/S of 2.87.

Finally, investors should note that BBCP has a P/CF ratio of 5.60. This data point considers a firm's operating cash flow and is frequently used to find companies that are undervalued when considering their solid cash outlook. BBCP's P/CF compares to its industry's average P/CF of 13.46. BBCP's P/CF has been as high as 6.45 and as low as 3.49, with a median of 4.73, all within the past year.

These are just a handful of the figures considered in Concrete Pumping Holdings's great Value grade. Still, they help show that the stock is likely being undervalued at the moment. Add this to the strength of its earnings outlook, and we can clearly see that BBCP is an impressive value stock right now.