Shares of Synovus Financial (SNV) have been strong performers lately, with the stock up 7.7% over the past month. The stock hit a new 52-week high of $51.22 in the previous session. Synovus Financial has gained 6.4% since the start of the year compared to the 2% move for the Zacks Finance sector and the 5% return for the Zacks Banks - Southeast industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed our earnings consensus estimate in any of the last four quarters. In its last earnings report on October 19, 2021, Synovus reported EPS of $1.2 versus consensus estimate of $1.07 while it beat the consensus revenue estimate by 2.43%.For the current fiscal year, Synovus is expected to post earnings of $4.28 per share on $1.97 billion in revenues. Meanwhile, for the next fiscal year, the company is expected to earn $4.69 per share on $1.99 billion in revenues. This represents a year-over-year change of -8.22% and 1.28%, respectively.Valuation MetricsSynovus may be at a 52-week high right now, but what might the future hold for the stock? A key aspect of this question is taking a look at valuation metrics in order to determine if the company has run ahead of itself.On this front, we can look at the Zacks Style Scores, as they provide investors with an additional way to sort through stocks (beyond looking at the Zacks Rank of a security). These styles are represented by grades running from A to F in the categories of Value, Growth, and Momentum, while there is a combined VGM Score as well. Investors should consider the style scores a valuable tool that can help you to pick the most appropriate Zacks Rank stocks based on their individual investment style.Synovus has a Value Score of A. The stock's Growth and Momentum Scores are B and C, respectively, giving the company a VGM Score of A.In terms of its value breakdown, the stock currently trades at 11.9X current fiscal year EPS estimates. On a trailing cash flow basis, the stock currently trades at 16.3X versus its peer group's average of 13.2X. Additionally, the stock has a PEG ratio of 0.57. This isn't enough to put the company in the top echelon of all stocks we cover from a value perspective.Zacks RankWe also need to look at the Zacks Rank for the stock, as this supersedes any trend on the style score front. Fortunately, Synovus currently has a Zacks Rank of #2 (Buy) thanks to favorable earnings estimate revisions from covering analysts.Since we recommend that investors select stocks carrying Zacks Rank of 1 (Strong Buy) or 2 (Buy) and Style Scores of A or B, it looks as if Synovus passes the test. Thus, it seems as though Synovus shares could have potential in the weeks and months to come. Infrastructure Stock Boom to Sweep America A massive push to rebuild the crumbling U.S. infrastructure will soon be underway. It’s bipartisan, urgent, and inevitable. Trillions will be spent. Fortunes will be made. The only question is “Will you get into the right stocks early when their growth potential is greatest?” Zacks has released a Special Report to help you do just that, and today it’s free. Discover 5 special companies that look to gain the most from construction and repair to roads, bridges, and buildings, plus cargo hauling and energy transformation on an almost unimaginable scale.Download FREE: How to Profit from Trillions on Spending for Infrastructure >>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 Synovus Financial Corp. (SNV): Free Stock Analysis Report To read this article on Zacks.com click here.