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, 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 rely on traditional forms of analysis on key valuation metrics to find stocks that they believe are undervalued, leaving room for profits.

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 to watch right now is Central Garden & Pet (CENTA Quick QuoteCENTA - Free Report) . CENTA is currently sporting a Zacks Rank #1 (Strong Buy) and an A for Value.

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. CENTA has a P/S ratio of 0.64. This compares to its industry's average P/S of 0.69.

These are only a few of the key metrics included in Central Garden & Pet'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, CENTA looks like an impressive value stock at the moment.