RF vs TSEM: Which Is the Better Buy in 2026?
Last updated August 2026
Short answer
RF and TSEM are similarly sized, but RF trades noticeably cheaper on forward earnings (10.88x vs 37.73x): the market is paying up for TSEM's profile and pricing RF more conservatively, or for faster growth. Which you prefer comes down to the drivers you believe, and whether adding either over-concentrates what you already own.
RF vs TSEM: the tie-breaker metrics
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.
| Metric | RF | TSEM | What it tells you |
|---|---|---|---|
| Forward P/E | 10.88 | 37.73 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Trailing P/E | 12.58 | 102.17 | Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price. |
| Beta | 1.01 | 0.87 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 84% of range | 63% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 1.51 | 8.31 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
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.
Before you buy: how RF and TSEM affect your concentration
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. RF and TSEM 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 RF and TSEM 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.
What does Regions Financial Corporation (RF) do?
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.
What does Tower Semiconductor (TSEM) do?
Tower Semiconductor (Nasdaq: TSEM) is an independent semiconductor foundry headquartered in Migdal Haemek, Israel, and incorporated in 1993. Rather than chasing leading-edge digital nodes like TSMC, Tower specializes in high-value analog and mixed-signal process technologies: silicon-germanium (SiGe), RF CMOS and RF SOI, CMOS image sensors, BCD power management, and silicon photonics (SiPho). It runs a multi-fab network across Israel, the United States, and Japan and sells manufacturing capacity to fabless chip designers and IDMs serving communications, smartphones, automotive, industrial, aerospace, and medical markets. Its 2025 revenue was roughly $1.57 billion.
RF vs TSEM: how do they differ?
Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.
- RF drivers: Net interest margin and rate positioning; Loan growth in a growing footprint.
- TSEM drivers: Silicon photonics for AI infrastructure; Specialty analog foundry positioning.
Which fits which kind of investor
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: 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. For TSEM, tower is a foundry exposed to the semiconductor cycle, so inventory corrections or softening end demand can hit revenue and utilization quickly.
RF or TSEM: which should you pick?
RF vs TSEM: the full fundamentals
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.
TSEM. As of July 2026 Tower was a solidly profitable foundry, but the stock had risen roughly 480% over the prior year, pushing its trailing P/E near 115x versus a longer-run median closer to 28x. The premium reflects the market pricing in the contracted silicon-photonics ramp for 2027 and 2028 rather than current earnings alone.
Headline figures (approximate, APRIL 2026): 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; TSEM shows revenue (ttm) ~$1.62B, revenue (fy2025) ~$1.57B, net income (ttm) ~$245M, market cap ~$26B.
The bottom line: RF vs TSEM
RF and TSEM 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 RF and TSEM exposure against your real portfolio. It is not an investment adviser.
Wondering how RF or TSEM fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Regions Financial Corporation with AI
Connect the broker you already use and ask Walnut's AI how RF fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between RF and TSEM?
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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. Tower Semiconductor (Nasdaq: TSEM) is an independent semiconductor foundry headquartered in Migdal Haemek, Israel, and incorporated in 1993. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is RF or TSEM the better stock?
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Neither is universally better; they suit different views and risk levels. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, RF or TSEM?
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On forward P/E (as of August 2026), RF trades at 10.88x and TSEM at 37.73x, so RF is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both RF and TSEM?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of RF vs TSEM?
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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. Credit quality is a standing risk, with net charge-offs at ~0.54% and nonperforming loans at ~0.71% in Q1 2026, both of which could deteriorate in a recession, particularly in commercial real estate. The 2023 regional-bank stress episode showed how quickly deposit confidence and funding can become the market's focus. Geographic concentration in the Southeast is a growth tailwind but also a source of correlated exposure to that region's economy. Regulatory capital rules, competition from larger money-center banks, and fintech disruption of fee lines round out the risks. TSEM: Tower is a foundry exposed to the semiconductor cycle, so inventory corrections or softening end demand can hit revenue and utilization quickly. Much of the current valuation rests on silicon-photonics contracts for 2027 and 2028 that are not yet delivered revenue, and concentration among a few large SiPho customers means a single program shift could materially change the trajectory. The company also carries geopolitical and operational exposure across Israel, Japan, and the United States, including the unwinding of its manufacturing arrangement at Intel's New Mexico fab (Fab 11X) and the transfer of that production to its own Fab7 in Japan. Competition in analog and RF foundry is intense, and pricing pressure or a missed technology transition (for example toward GaN or SiC) could erode margins. Finally, the stock's trailing P/E near 115x leaves little room for execution missteps.
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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell RF or TSEM; figures are approximate and dated (as of August 2026). Verify current data before investing.