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.RadNet (RDNT) is a stock many investors are watching right now. RDNT is currently sporting a Zacks Rank of #2 (Buy), as well as an A grade for Value.Another notable valuation metric for RDNT is its P/B ratio of 2.35. Investors use the P/B ratio to look at a stock's market value versus its book value, which is defined as total assets minus total liabilities. RDNT's current P/B looks attractive when compared to its industry's average P/B of 2.79. Over the past 12 months, RDNT's P/B has been as high as 5.42 and as low as 2.14, with a median of 2.79.Value investors also use the P/S ratio. The P/S ratio is is calculated as price divided by 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. RDNT has a P/S ratio of 0.77. This compares to its industry's average P/S of 1.02.Value investors will likely look at more than just these metrics, but the above data helps show that RadNet is likely undervalued currently. And when considering the strength of its earnings outlook, RDNT sticks out at as one of the market's strongest value stocks. Free Report Reveals How You Could Profit from the Growing Electric Vehicle Industry Globally, electric car sales continue their remarkable growth even after breaking records in 2021. High gas prices have fueled his demand, but so has evolving EV comfort, features and technology. So, the fervor for EVs will be around long after gas prices normalize. Not only are manufacturers seeing record-high profits, but producers of EV-related technology are raking in the dough as well. Do you know how to cash in? If not, we have the perfect report for you – and it’s FREE! Today, don't miss your chance to download Zacks' top 5 stocks for the electric vehicle revolution at no cost and with no obligation.>>Send me my free report on the top 5 EV stocksWant the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report RadNet, Inc. (RDNT): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research