D vs DUK: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. D and DUK share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined D and DUK exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Dominion Energy is one of the largest regulated utilities in the United States, delivering electricity to roughly 3.6 million homes and businesses across Virginia, North Carolina, and South Carolina and regulated natural gas to customers in South Carolina. As a rate-regulated utility, it earns most of its money by investing in generation, poles, wires, and pipes and recovering those costs plus an allowed return through rates approved by state regulators, which makes its cash flows far steadier and more predictable than a commodity producer's. Its home territory sits at the center of the world's largest data-center market in Northern Virginia, and Dominion has said contracted data-center capacity now exceeds 48 gigawatts as customers such as Amazon, Microsoft, Alphabet, and Meta expand AI and cloud workloads. To serve that demand and its clean-energy goals, Dominion has laid out a roughly $50 billion five-year capital plan, including its Coastal Virginia Offshore Wind (CVOW) project, a 2.6-gigawatt, 176-turbine build that was more than 75% complete in 2026 and has begun delivering power to customers.

Full D guide

Duke Energy is a holding company for a group of regulated electric and gas utilities serving roughly eight and a half million electric customers across six states, including the Carolinas, Florida, Indiana, Ohio, Kentucky, and Tennessee, plus natural gas distribution to over a million customers. As a regulated utility, Duke earns an authorized return on the capital it invests in power plants, poles, wires, and pipes, so its profit grows largely as it grows its regulated asset base, or rate base, subject to approval from state utility commissions. This regulated model produces relatively stable, predictable cash flows that fund a long-running dividend, which is the core of the income case for the stock.

Full DUK guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• D drivers: Data-center-driven load growth; Coastal Virginia Offshore Wind.
• DUK drivers: Rate-base growth from a $103B capital plan; Data-center and large-load demand.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: The biggest single risk is deal risk: with a large all-stock merger pending, the share price is tied to the transaction closing on its stated terms and to NextEra's stock, and antitrust, FERC, NRC, or state-commission conditions (or an outright block) could delay, reshape, or unwind it. For DUK, duke is highly capital-intensive and carries substantial debt to fund its build-out, which makes it sensitive to interest rates: higher rates raise its borrowing costs and tend to compress the valuations investors assign to regulated utilities, while also making bond yields more competitive with its dividend.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick D if you believe its drivers more; DUK if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the D and DUK guides.

D. These points are qualitative and tied to the asOf date; verify live figures before acting. Because a large all-stock merger is pending, standard valuation multiples matter less than the exchange ratio and the odds of the deal closing: Dominion shares should broadly track roughly 0.8138 times NextEra's price, adjusted for cash terms and deal risk. If you are evaluating income, base any dividend expectation on the latest declared payout and on the combined company's stated policy, not on historical assumptions.

DUK. As of late June 2026, DUK traded near the high-$120s per share with a market cap around ~$100 billion. The trailing P/E of roughly ~19x to ~20x is broadly in line with large regulated-utility peers, reflecting steady but moderate earnings growth rather than the higher multiples of faster-growing sectors. Revenue for full-year 2025 was about ~$31.8 billion, and Q1 2026 adjusted EPS was ~$1.93, up from ~$1.76 a year earlier. Figures are approximate, drawn from the Q1 2026 release and public market data, and move with the share price.

Headline figures (approximate, Jul 2026): D shows business model Regulated electric utility (Virginia, North Carolina, South Carolina) plus regulated gas in South Carolina; rate-regulated, defensive cash flows, pending merger All-stock combination with NextEra Energy agreed May 2026, ~0.8138 NextEra shares per D share plus one-time cash; implied deal value ~$67 billion; ~12-18 months to close, capital plan Roughly $50 billion five-year plan, with a large share tied to data-center load growth and clean energy; verify current figure, data-center demand Contracted capacity said to exceed 48 gigawatts in the world's largest data-center market; DUK shows revenue (ttm) ~$31.8B, adjusted eps guidance (fy2026) ~$6.55 to ~$6.80, adjusted eps growth target ~5% to ~7% per year through 2030, dividend yield ~3.4%.

D and DUK are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined D and DUK exposure against your real portfolio. It is not an investment adviser.