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.

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.

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 stock to keep an eye on is LSI Industries (LYTS Quick QuoteLYTS - Free Report) . LYTS is currently sporting a Zacks Rank of #2 (Buy) and an A for Value.

We should also highlight that LYTS has a P/B ratio of 2.34. The P/B ratio is used to compare a stock's market value with its book value, which is defined as total assets minus total liabilities. This stock's P/B looks solid versus its industry's average P/B of 2.64. Over the past 12 months, LYTS's P/B has been as high as 2.60 and as low as 1.89, with a median of 2.17.

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 prefered metric because revenue can't really be manipulated, so sales are often a truer performance indicator. LYTS has a P/S ratio of 0.95. This compares to its industry's average P/S of 1.1.

These are only a few of the key metrics included in LSI Industries'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, LYTS looks like an impressive value stock at the moment.