On September 21, 2026, Southern Co (NYSE: SO) announced a strategic partnership between its largest utility subsidiary, Georgia Power, and Google to enhance nuclear energy capacity in Georgia. This collaboration aims to upgrade nuclear units at Plants Vogtle and Hatch, potentially adding 96 megawatts of clean energy and generating $900 million in customer savings over the units’ lifespans, pending regulatory approval.
- Southern Co’s Price-to-Sales (P/S) ratio currently stands at 3.14x, slightly above its historical median of 2.95x, signaling market expectations of future growth despite the company’s unprofitable and cash-flow-negative status, which renders earnings-based valuation (P/E) less meaningful.
- GF Score™ of 70/100 reflects a balanced profile with solid profitability and growth but weaker financial strength and momentum.
- Insider activity shows no insider buying and $6.2 million in insider selling over the past 12 months, while 9 premium gurus hold SO with 5 trimming positions and 2 adding recently, indicating mixed but cautious institutional sentiment.
What’s Behind the News?
The recent announcement highlights a significant collaboration between Georgia Power and Google to upgrade nuclear power plants in Georgia, specifically Plants Vogtle and Hatch. These upgrades are designed to increase nuclear capacity by approximately 96 megawatts, reinforcing the role of nuclear energy as a key clean energy source in the state. The deal, subject to approval by the Georgia Public Service Commission, also includes a revised tariff structure and extended power uprates, which are expected to yield nearly $900 million in savings for Georgia Power’s customers over the lifespan of the upgraded units. This initiative aligns with Georgia Power’s commitment to clean energy and supports the growing demand for reliable, carbon-free electricity, particularly from data center customers like Google.
Southern Co, with a market capitalization of $98.31 billion, operates primarily in the regulated utilities sector, serving about 9 million electric and gas customers across the Southeast through subsidiaries including Georgia Power, Alabama Power, and Mississippi Power. The company’s vertically integrated utilities manage generation, transmission, and distribution, with significant investments in nuclear power, renewable energy, and natural gas. Southern Co’s Plant Vogtle recently became the first new nuclear facility in the U.S. in decades to come online, underscoring the company’s strategic focus on low-carbon baseload power generation.
Is SO Overvalued on a Price-to-Sales Basis?
Southern Co’s current Price-to-Sales ratio of 3.14x is modestly above its three-year historical median of 2.95x and slightly above the industry median, reflecting the market’s anticipation of future growth opportunities, particularly in clean energy and nuclear capacity expansion. However, it is important to note that Southern Co remains unprofitable and cash-flow-negative on a trailing twelve-month basis, which diminishes the usefulness of earnings-based valuation metrics such as the P/E ratio. The company’s P/E ratio stands at 20.62x, close to its five-year median of 22.67x, but this figure is less relevant given the negative free cash flow and ongoing capital expenditures.
GuruFocus’ proprietary GF Value™ metric estimates Southern Co’s intrinsic value at $94.05 per share, suggesting the stock is approximately 9.1% undervalued relative to its current price of $85.46. While this indicates some margin of safety, GF Value™ should be interpreted cautiously here as it relies on historical multiples that may not fully capture the complexities of a capital-intensive, regulated utility undergoing significant nuclear upgrades and facing cash flow challenges. For more details, see GF Value™.
What Does SO’s GF Score™ Tell Us?
The GF Score™ is a composite measure that evaluates a company’s overall quality by integrating financial strength, profitability, growth, valuation, and momentum factors. Southern Co’s GF Score™ of 70/100 indicates a moderately strong overall profile, reflecting solid profitability and growth metrics but tempered by weaker financial strength and momentum.
Southern Co’s strongest area is valuation, scoring a perfect 10, reflecting the stock’s relative undervaluation on GF Value™ terms. Profitability and growth ranks are solid at 7 each, supported by expanding operating margins and consistent earnings growth over recent years. However, financial strength ranks only 4 due to high leverage (debt-to-equity of 1.95) and a low Altman Z-score of 0.97, which signals distress risk. Momentum is the weakest factor at 1, reflecting recent share price declines and subdued market enthusiasm. For additional insights, visit the SO stock page.
What Are Gurus and Insiders Doing with SO?
GuruFocus tracks 9 premium gurus holding Southern Co, with 5 reducing their stakes and 2 increasing positions in recent quarters. This mixed institutional activity suggests cautious optimism about the company’s prospects amid ongoing nuclear investments and regulatory uncertainties. Insider activity over the past 12 months shows no insider purchases but $6.2 million in insider selling across 13 transactions, indicating insiders are generally reducing exposure. This combination of guru trimming and insider selling may reflect concerns about the company’s financial leverage and cash flow challenges, despite its strategic growth initiatives.
What This Means for Investors
Southern Co’s current valuation and GF Score™ profile suggest a company that is fairly valued to modestly undervalued on a price-to-sales basis, with the market pricing in moderate growth expectations despite ongoing profitability and cash flow headwinds. The nuclear upgrade deal with Google underscores Southern Co’s commitment to expanding its clean energy footprint, which could support future revenue growth and customer savings. However, investors should weigh these growth prospects against the company’s financial leverage, distressed Altman Z-score, and cautious insider and guru sentiment. Those considering Southern Co should monitor regulatory approvals and execution risks tied to nuclear projects. For a deeper dive into Southern Co’s fundamentals and market positioning, explore the SO stock page or use the GuruFocus Stock Screener to compare with peers.
Frequently Asked Questions
What is SO’s GF Score™?
Southern Co’s GF Score™ of 70/100 reflects a balanced assessment of its profitability, growth, valuation, and financial strength, indicating moderate overall quality with particular strengths in valuation and profitability.
Is SO overvalued or undervalued?
Based on its Price-to-Sales ratio and GF Value™, Southern Co appears about 9.1% undervalued, but earnings-based metrics like P/E are less meaningful due to the company’s unprofitable and cash-flow-negative status.
What is SO’s P/E ratio compared to historical?
Southern Co’s trailing P/E ratio is 20.62x, slightly below its five-year median of 22.67x; however, P/E is not a reliable valuation metric here given the company’s negative free cash flow and ongoing capital investments.
This stock alert was generated using automated technology and GuruFocus financial data to provide readers with timely and accurate market reporting. This content was reviewed by GuruFocus editorial team prior to publication. Please send any questions or comments about this story to [email protected].