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, value investing is easily one of the most popular ways to find great stocks in any market environment. Value investors use a variety of methods, including tried-and-true valuation metrics, to find these stocks.

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 company value investors might notice is Primoris Services (PRIM Quick QuotePRIM - Free Report) . PRIM is currently sporting a Zacks Rank of #1 (Strong Buy) and an A for Value. The stock is trading with a P/E ratio of 9.82, which compares to its industry's average of 9.86. Over the past 52 weeks, PRIM's Forward P/E has been as high as 13.75 and as low as 5.27, with a median of 11.04.

Value investors also love the P/S ratio, which is calculated by simply dividing a stock's price with the company's sales. This is a popular metric because sales are harder to manipulate on an income statement, so they are often considered a better performance indicator. PRIM has a P/S ratio of 0.26. This compares to its industry's average P/S of 0.38.

These are only a few of the key metrics included in Primoris Services'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, PRIM looks like an impressive value stock at the moment.