Whether you're a growth, value, income, or momentum-focused investor, building a successful investment portfolio takes skill, research, and a little bit of luck.
But what's the best way to find the right combination of stocks? Because funding things like your retirement, your kids' college tuition, or your short- and long-term savings goals will definitely require significant returns.
Enter the Zacks Rank.
What is the Zacks Rank?
The Zacks Rank is a unique, proprietary stock-rating model that utilizes earnings estimate revisions to help investors build a winning portfolio.
There are four main factors behind the Zacks Rank: Agreement, Magnitude, Upside, and Surprise.
Agreement is the extent to which all brokerage analysts are revising their earnings estimates in the same direction. The greater the percentage of analysts revising their estimates higher, the better chance the stock will outperform.
Magnitude is the size of the recent change in the consensus estimate for the current and next fiscal years.
Upside is the difference between the most accurate estimate, which is calculated by Zacks, and the consensus estimate.
Surprise is made up of a company's last few quarters' earnings per share surprises; companies with a positive earnings surprise are more likely to beat expectations in the future.
Each factor is given a raw score, which is recalculated every night and compiled into the Zacks Rank. Utilizing this data, stocks are put into five different groups: Strong Buy, Buy, Hold, Sell, and Strong Sell.
The Power of Institutional Investors
The Zacks Rank also allows individual investors, or retail investors, to benefit from the power of institutional investors.
Institutional investors are responsible for managing the trillions of dollars invested in mutual funds, hedge funds, and investment banks. Research has shown that these investors can and do move the market due to the large amount of money they deal with, and thus, the market tends to move in the same direction as them.
In order to determine the fair value of a company and its shares, institutional investors design valuation models that focus on earnings and earnings estimates. Because if you raise earnings estimates, it then creates a higher fair value for a company and its stock price.
With these changes, institutional investors will act, usually buying stocks with rising estimates and selling those with falling estimates. An increase in earnings expectations can potentially lead to higher stock prices and bigger gains for the investor.
Because it can take a long time for an institutional investor to build a position--sometimes weeks, if not months--retail investors who get in at the first sign of upward revisions have a distinct advantage over these larger investors, and can benefit from the expected institutional buying that will follow.
Not only can the Zacks Rank help you take advantage of trends in earnings estimate revisions, but it can also provide a way to get into stocks that are highly sought after by professionals.
How to Invest with the Zacks Rank
The Zacks Rank is known for transforming investment portfolios. In fact, a portfolio of Zacks Rank #1 (Strong Buy) stocks has beaten the market in 26 of the last 32 years, with an average annual return of +23.8%.
Moreover, stocks with a new #1 (Strong Buy) ranking have some of the biggest profit potential, while those that fell to a #4 (Sell) or #5 (Strong Sell) have some of the worst.
Let's take a look at EnerSys (ENS), which was added to the Zacks Rank #1 list on August 21, 2026. Headquartered in Pennsylvania, EnerSys manufactures, markets and distributes industrial batteries and related stored-energy products. The company also develops battery chargers and accessories, power electronics, power equipment and outdoor cabinet enclosures. It provides maintenance, technical and other support services for customers.
Three analysts revised their earnings estimate upwards in the last 60 days for fiscal 2027. The Zacks Consensus Estimate has increased $1.31 to $13.41 per share. ENS boasts an average earnings surprise of 11.5%.
Analysts are expecting earnings to grow 27% for the current fiscal year, with revenue forecasted to rise 3.7%.
Additionally, ENS has climbed higher over the past four weeks, gaining 9.4%. The S&P 500 is up 3.7% in comparison.
Bottom Line
With a #1 (Strong Buy) ranking, positive trend in earnings estimate revisions, and strong market momentum, EnerSys should be on investors' shortlist.
If you want even more information on the Zacks Ranks, or one of our many other investing strategies, check out the Zacks Education home page.
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This article originally published on Zacks Investment Research (zacks.com).