Growth investors focus on stocks that are seeing above-average financial growth, as this feature helps these securities garner the market's attention and deliver solid returns. But finding a growth stock that can live up to its true potential can be a tough task.In addition to volatility, these stocks carry above-average risk by their very nature. Also, one could end up losing from a stock whose growth story is actually over or nearing its end.However, it's pretty easy to find cutting-edge growth stocks with the help of the Zacks Growth Style Score (part of the Zacks Style Scores system), which looks beyond the traditional growth attributes to analyze a company's real growth prospects.Hub Group (HUBG) is one such stock that our proprietary system currently recommends. The company not only has a favorable Growth Score, but also carries a top Zacks Rank.Studies have shown that stocks with the best growth features consistently outperform the market. And returns are even better for stocks that possess the combination of a Growth Score of A or B and a Zacks Rank #1 (Strong Buy) or 2 (Buy).Here are three of the most important factors that make the stock of this transportation management company a great growth pick right now.Earnings GrowthArguably nothing is more important than earnings growth, as surging profit levels is what most investors are after. And for growth investors, double-digit earnings growth is definitely preferable, and often an indication of strong prospects (and stock price gains) for the company under consideration.While the historical EPS growth rate for Hub Group is 10.7%, investors should actually focus on the projected growth. The company's EPS is expected to grow 21.1% this year, crushing the industry average, which calls for EPS growth of 19.6%.Impressive Asset Utilization RatioGrowth investors often overlook asset utilization ratio, also known as sales-to-total-assets (S/TA) ratio, but it is an important feature of a real growth stock. This metric exhibits how efficiently a firm is utilizing its assets to generate sales.Right now, Hub Group has an S/TA ratio of 1.8, which means that the company gets $1.8 in sales for each dollar in assets. Comparing this to the industry average of 1.32, it can be said that the company is more efficient.While the level of efficiency in generating sales matters a lot, so does the sales growth of a company. And Hub Group is well positioned from a sales growth perspective too. The company's sales are expected to grow 17.2% this year versus the industry average of 7.4%.Promising Earnings Estimate RevisionsBeyond the metrics outlined above, investors should consider the trend in earnings estimate revisions. A positive trend is a plus here. Empirical research shows that there is a strong correlation between trends in earnings estimate revisions and near-term stock price movements.There have been upward revisions in current-year earnings estimates for Hub Group. The Zacks Consensus Estimate for the current year has surged 0.7% over the past month.Bottom LineWhile the overall earnings estimate revisions have made Hub Group a Zacks Rank #2 stock, it has earned itself a Growth Score of B based on a number of factors, including the ones discussed above.You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here.This combination indicates that Hub Group is a potential outperformer and a solid choice for growth investors. Zacks’ Top Picks to Cash in on Artificial Intelligence This world-changing technology is projected to generate $100S of billions by 2025. From self-driving cars to consumer data analysis, people are relying on machines more than we ever have before. Now is the time to capitalize on the 4th Industrial Revolution. Zacks’ urgent special report reveals 6 AI picks investors need to know about today.See 6 Artificial Intelligence Stocks With Extreme Upside Potential>>Want 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 Hub Group, Inc. (HUBG): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research