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You might hold American Electric Power (AEP), an electric utility planning to spend $78 billion from 2026 through 2030, alongside an S&P 500 index fund. Because that fund already tracks broader market moves, it matters whether this stock amplifies those swings or offsets them. So when the market falls, does American Electric Power fall with your fund, or hold up?
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American Electric Power Barely Followed The Market Last Year
Over the year ending October 22, 2026, American Electric Power held up on average when the market declined. During an average day the S&P 500 dropped, a $10,000 position in the stock gained about $14. On an average day the index advanced, that same holding lost about $3.
Over the past year, the stock recorded a beta of -0.07. Because beta tracks how far an asset moves for each 1% move in the index, this figure shows the shares barely followed the market and leaned slightly the other way. The stock was not calm, however. Its volatility, a measure of how widely a price swings over a year, reached 19.4%, compared with 12.7% for the S&P 500. So American Electric Power has not added to your market risk, but it brings wide swings of its own that do not line up with the market’s movements.
Will American Electric Power Stay Apart From The Market?
Judging by how it earns its money, American Electric Power’s link to the market may stay weak, though over the past five years its correlation with the S&P 500 was 0.24, higher than in the past year. Regulated utilities account for most of its revenue. Its Vertically Integrated Utilities and Transmission and Distribution Utilities segments brought in $12.8 billion and $6.15 billion in fiscal 2025. Over the past year, the stock’s daily moves displayed almost no link to the index, recording a correlation of -0.04 on a scale where 1 means moving in step.
Its newest customers are tied in as well. During the July 30, 2026 call, management said its large load tariffs require customers to make long-term commitments. Those customers, which management describes as mostly hyperscalers and large industrial companies, have signed up for 69 gigawatts of new load through 2030.
American Electric Power is still carrying out the capital plan, and the company already carries debt equal to 75.3% of its market value, compared with 19.7% for the S&P 500. With a build this size under way and that much debt, American Electric Power’s own swings are likely to stay as wide as they have been.
Has American Electric Power Paid You For Bigger Swings?
Partly. Over the five years ending October 22, 2026, American Electric Power returned 12.8% a year including dividends, compared with 12.6% for the S&P 500. The stock took bigger swings to reach those gains. Annual volatility over those five years was 20.3% for the shares, against 17.0% for the index.
Dividing the return by the volatility shows how much return each unit of swing earned. That calculation yields 0.631 for American Electric Power, against 0.741 for the S&P 500. The return kept pace with the market, but the swings paid you less well than the market’s did.
Based on the past year, American Electric Power has tended to slip slightly on a day the market rises and your fund gains. On a day the market falls, the stock has tended to climb while your fund loses. If you already own other electric utilities signing up large power users, American Electric Power adds more of that same bet to what you hold. Management expects to lay out its next five-year capital plan on its third-quarter call, due in October 2026, and that plan is the thing to watch.
How To Act On AEP?
Not necessarily on American Electric Power alone, if your goal is long-term wealth. Wealth is built by owning the companies that keep outperforming, the leaders of their industries, wherever they are. Here is one company from American Electric Power’s own industry that has beaten it. Over the five years to October 2026, Vistra stock rose 703%, while American Electric Power stock rose 83%.
Finding companies like these takes comparison across industries and sectors, and that is what the Trefis High Quality (HQ) Portfolio does. It holds 30 quality companies in equal weight and, since its inception in September 2020, has returned more than 105%, ahead of a benchmark that combines the S&P 500, S&P Mid-cap and Russell 2000. See how we find the leaders.
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