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At the center of everything we do is a strong commitment to independent research and sharing its profitable discoveries with investors. This dedication to giving investors a trading advantage led to the creation of our proven Zacks Rank stock-rating system. Since 1988 it has more than doubled the S&P 500 with an average gain of +23.80% per year. These returns cover a period from January 1, 1988 through August 3, 2026. Zacks Rank stock-rating system returns are computed monthly based on the beginning of the month and end of the month Zacks Rank stock prices plus any dividends received during that particular month. A simple, equally-weighted average return of all Zacks Rank stocks is calculated to determine the monthly return. The monthly returns are then compounded to arrive at the annual return. Only Zacks Rank stocks included in Zacks hypothetical portfolios at the beginning of each month are included in the return calculations. Zacks Ranks stocks can, and often do, change throughout the month. Certain Zacks Rank stocks for which no month-end price was available, pricing information was not collected, or for certain other reasons have been excluded from these return calculations. Zacks may license the Zacks Mutual Fund rating provided herein to third parties, including but not limited to the issuer.
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Zacks News
MDU Resources Group Gains From Capital Investments, Spinoffs
by Zacks Equity Research
MDU gains from heavy infrastructure investments and post-spinoff focus on energy delivery, with data center demand and capital plans driving long-term growth.
SR or ATO: Which Is the Better Value Stock Right Now?
by Zacks Equity Research
SR vs. ATO: Which Stock Is the Better Value Option?
4 Low-Beta Defensive Stocks to Buy as Consumer Confidence Plummets
by Ritujay Ghosh
With consumer confidence sliding, low-beta defensive picks like ATO, AWR, SRE and INGR stand out as investors look to limit downside risk.
Atmos Energy (ATO) Could Be a Great Choice
by Zacks Equity Research
Dividends are one of the best benefits to being a shareholder, but finding a great dividend stock is no easy task. Does Atmos (ATO) have what it takes? Let's find out.
Atmos (ATO) Upgraded to Buy: Here's Why
by Zacks Equity Research
Atmos (ATO) has been upgraded to a Zacks Rank #2 (Buy), reflecting growing optimism about the company's earnings prospects. This might drive the stock higher in the near term.
SR vs. ATO: Which Stock Is the Better Value Option?
by Zacks Equity Research
SR vs. ATO: Which Stock Is the Better Value Option?
Is Atmos Energy (ATO) Outperforming Other Utilities Stocks This Year?
by Zacks Equity Research
Here is how Atmos Energy (ATO) and Lumen (LUMN) have performed compared to their sector so far this year.
2 Gas Utility Stocks to Add to Your Portfolio as 2025 Wraps Up
by Jewel Saha
Rising gas demand and falling interest rates make ATO and SR attractive year-end picks for income-seeking investors
Top-Ranked Utility ETFs Poised to Benefit From Recent Fed Rate Cut
by Aparajita Dutta
A third Fed rate cut this year is boosting utilities, making diversified Utility ETFs like XLU an attractive way to tap lower borrowing costs and steady dividends.
Build a Stronger 2026 Portfolio With These 5 Dividend Aristocrats
by Vaishali Doshi
ATO, MDT, PEP, CAT and SPGI stand out as dividend aristocrats for 2026, offering decades of hikes, solid yields and defensive income.