RNST vs TRMK: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of September 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. RNST and TRMK 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 RNST and TRMK 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.

Renasant Corporation is the holding company for Renasant Bank, a financial institution that has operated for more than a century and now runs hundreds of banking, lending, mortgage, and wealth offices across the Southeastern US. It operates through three segments: Community Banks (checking and savings accounts, commercial and consumer loans, asset-based lending, and leasing), Wealth Management (trust, fiduciary, retirement, and brokerage services), and Insurance (agency products placed through third-party carriers). In April 2025 it completed a merger with The First Bancshares, creating a combined bank with roughly $27 billion in assets, about $19 billion in loans, and about $22 billion in deposits as of early 2026.

Full RNST guide

Trustmark Corporation (NASDAQ: TRMK) is a regional financial holding company headquartered in Jackson, Mississippi, whose principal subsidiary, Trustmark National Bank, traces back to an 1889 Mississippi charter. The company runs three operating segments: a General Banking Division (checking, savings, mortgages, commercial and consumer lending, and treasury services), a Wealth Management Division (trust, private banking, and investment advisory), and an Insurance Division (commercial and personal insurance agency operations). Its branch footprint spans Alabama, Florida (primarily the Panhandle), Georgia, Mississippi, Tennessee (Memphis), and Texas (Houston), operating well over 150 full-service branches. Like most banks, Trustmark makes money in two broad ways: net interest income, the spread between what it earns on loans and securities and what it pays on deposits, and noninterest fee income from wealth management, insurance, service charges, and mortgage banking.

Full TRMK guide

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

• RNST drivers: Merger integration and synergies; Net interest margin and funding costs.
• TRMK drivers: Expanding net interest margin; Steady loan growth and stable credit.

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, Renasant is exposed to credit risk in its commercial and commercial real estate loan book, which can deteriorate quickly in a recession or a downturn in Southeast property markets. For TRMK, as a regional bank, Trustmark is highly sensitive to interest rates: net interest income is its largest revenue source, so falling rates or deposit repricing could compress the net interest margin that recently expanded to about 3.80%.

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 RNST if you believe its drivers more; TRMK 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 RNST and TRMK guides.

RNST. At roughly $43 per share and a $4 billion market cap, RNST has traded around a low-to-mid-teens trailing P/E, broadly in line with regional-bank peers. Tangible book value per share was about $25 and book value per share about $41.63 in early 2026, so the stock trades at a meaningful premium to tangible book, reflecting improved returns. Return on average tangible common equity above 16 percent and a return on assets of about 1.33 percent are strong for the group if sustained.

TRMK. Trustmark trades at roughly 12 times trailing earnings, a moderate valuation typical of a profitable but slower-growth regional bank, with a return on average assets around 1.2% and return on tangible common equity near 13%. Its net interest margin expanded meaningfully in 2025, and deposit costs eased into early 2026. The dividend, recently raised to a $1.00 annual rate, carries a payout ratio near 26%, leaving room for reinvestment and capital return.

Headline figures (approximate, JULY 2026): RNST shows market cap ~$4.0B, total assets ~$27.1B, deposits ~$22.1B, q1 2026 net income ~$88M; TRMK shows total assets (q1 2026) ~$19 billion, full-year 2025 net income ~$224 million, full-year 2025 diluted eps ~$3.70, net interest margin (fy2025) ~3.80% (NII FTE up ~8.4%).

RNST and TRMK 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 RNST and TRMK exposure against your real portfolio. It is not an investment adviser.