AEIS vs RF: How Advanced Energy Industries and Regions Financial Corporation Compare (2026)

Same yardstick, side by side (as of July 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.

Reading it: RF is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

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. AEIS and RF 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 AEIS and RF 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.

Advanced Energy Industries (AEIS) designs and manufactures precision power conversion, measurement, and control systems used in demanding industrial and technology processes. Its largest end market is semiconductor manufacturing, where its plasma power supplies, matching networks, and RF generators are critical to wafer fabrication equipment used in etch and deposition steps. Advanced Energy also serves data center computing (power supplies for servers and AI infrastructure), industrial and medical applications, and telecom and networking. The company sells primarily to original equipment manufacturers (the makers of fab tools and data center systems) as well as directly to fabs and large operators. Its products are highly engineered and embedded deep in customer equipment, creating long design-win cycles and sticky relationships. Founded in 1981 and headquartered in Denver, Colorado, Advanced Energy is a mid-cap supplier whose fortunes are closely tied to the semiconductor capital equipment cycle and, increasingly, to AI data center power demand.

Full AEIS guide

Regions Financial Corporation is one of the largest US regional banks, headquartered in Birmingham, Alabama, with roughly 1,250 branches concentrated across the South, Midwest, and Texas. It operates three main segments: Consumer Banking (checking, savings, mortgages, and consumer lending), Corporate Banking (commercial and industrial loans, commercial real estate, and treasury management), and Wealth Management. As of Q1 2026 it carried about ~$132 billion in deposits and ~$98 billion in loans (Q1 2026), and it earns most of its money the classic banking way: the spread between what it pays on deposits and what it earns on loans and securities, plus fee income from treasury management, capital markets, wealth, and card services.

Full RF guide

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

• AEIS drivers: Semiconductor process power; Data center and AI power.
• RF drivers: Net interest margin and rate positioning; Loan growth in a growing footprint.

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: Advanced Energy is highly exposed to the semiconductor capital equipment cycle, which is volatile; downturns in fab spending hit revenue and margins hard. For RF, as a regional bank, Regions is cyclical and exposed to the interest-rate path: falling rates can compress its margin, while sharp rate moves can pressure deposit costs and securities values.

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 AEIS if you believe its drivers more; RF 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 AEIS and RF guides.

AEIS. Advanced Energy trades as a semiconductor-equipment-linked supplier, so its multiple expands when fab capex and AI data center power sentiment are strong and compresses in downturns. The financial profile is solid but cyclical, with margins that swing on volume. Investors weigh the secular AI power tailwind against the inherent volatility of chip capital spending.

RF. As of April 2026, Regions traded at a market capitalization of roughly ~$24 billion, a typical valuation range for a profitable super-regional bank. Its ~$1.06 annual dividend (yield near ~3.8%) and 13-year streak of increases make income a meaningful part of the return. Bank valuations are usually framed on price-to-tangible-book and price-to-earnings, and Regions' record ~18.26% return on tangible common equity in Q1 2026 is what supports its multiple.

Headline figures (approximate, early 2026): AEIS shows revenue (ttm) ~$1.5 billion, operating margin ~10-15% (cyclical), gross margin ~high-30s percent, net income (ttm) ~$150 million; RF shows revenue (ttm) ~$7.4 billion, q1 2026 total revenue ~$1.87 billion, q1 2026 net income ~$539 million, q1 2026 diluted eps ~$0.62.

AEIS and RF 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 AEIS and RF exposure against your real portfolio. It is not an investment adviser.