BRK-B vs RGA: 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.

Reading it: RGA 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. BRK-B and RGA 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 BRK-B and RGA 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.

Berkshire Hathaway is a diversified holding company that owns a wide range of businesses outright and holds a large portfolio of public stocks. Its foundation is insurance: GEICO, Berkshire Hathaway Reinsurance, and other insurers generate underwriting profit and, more importantly, float (premiums held before claims are paid) that Berkshire invests. In Q1 2026 insurance underwriting income rose to about $1.72 billion from $1.34 billion a year earlier. Beyond insurance, Berkshire owns the BNSF railroad, Berkshire Hathaway Energy, and consumer and industrial businesses such as Duracell, Dairy Queen, See's Candies, and Precision Castparts, alongside a stock portfolio historically anchored by names like Apple and American Express.

Full BRK-B guide

RGA began as the reinsurance arm of General American Life, went public in 1993, and became fully independent when MetLife split off its majority stake in 2008. The company sells reinsurance to life and health insurers, which means it takes a share of claims risk that a primary carrier has already written. Reporting runs through four geographic segments, U.S. and Latin America, Canada, Europe Middle East and Africa, and Asia Pacific, and each one is split into two very different businesses. Traditional reinsurance covers individual and group life and health mortality and morbidity, usually on yearly renewable term treaties that generate steady premium for decades once written. Financial Solutions is the balance-sheet business: asset-intensive annuity and legacy life blocks, longevity swaps, pension risk transfer and capital-relief structures, where RGA takes on reserves and the assets backing them and earns an investment spread. Scale is substantial. Net premiums were $4.472 billion in the second quarter of 2026 and $9.067 billion for the first half, total assets stood at ~$167 billion at June 30, 2026, and the invested portfolio behind those liabilities is ~$145 billion. In fiscal 2025, U.S. and Latin America contributed roughly half of segment revenue, with Asia Pacific next at ~$5.1 billion.

Full RGA guide

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

• BRK-B drivers: Leadership transition to Greg Abel; Insurance float and underwriting.
• RGA drivers: Financial Solutions and the Equitable block; Reinvestment spread on a $145 billion portfolio.

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 central 2026 risk is the leadership transition itself: Buffett's judgment and reputation were core to Berkshire's edge, and the market will test whether Greg Abel can allocate capital as effectively, especially with a record cash pile to deploy. For RGA, the clearest risk is the one the business exists to take.

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 BRK-B if you believe its drivers more; RGA 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 BRK-B and RGA guides.

BRK-B. Figures are approximate and tied to the asOf date; verify live numbers before acting. Because accounting rules force Berkshire to mark its large stock portfolio to market each quarter, GAAP net income is noisy, so investors typically focus on operating earnings and book value per share rather than a simple P/E. The record cash balance means a meaningful part of the market cap is cash awaiting deployment, which affects how the business should be valued.

RGA. A double-digit P/E and a small premium to book on an 18% adjusted operating ROE is the market applying a discount for how the returns were earned. Investors have seen life reinsurers report strong mortality quarters and then take reserve charges, and the asset-intensive growth of the past three years adds credit exposure that only reveals itself in a downturn. The forward multiple below the trailing one reflects consensus expecting normalization from the 2026 print rather than continued acceleration.

Headline figures (approximate, Jul 2026): BRK-B shows operating earnings (q1 2026) ~$11.35 billion, up ~18% year over year (approximate; verify live), net earnings (q1 2026) ~$10.1 billion, but volatile due to mark-to-market swings on equities (approximate; verify live), cash and treasurys ~$397 billion at end of Q1 2026, a record (approximate; verify live), market cap ~$1 trillion (BRK-B ~$497 per share in mid-July 2026; approximate; verify live); RGA shows revenue (ttm) ~$25.97 billion for the twelve months to June 30, 2026, up ~19% year over year, versus $23.70 billion in fiscal 2025, $22.11 billion in 2024 and $18.57 billion in 2023. The line combines net premiums with net investment income and fee income, so growth reflects both new reinsurance treaties and the yield earned on assets backing reserves, not unit sales. Reported in U.S. dollars, with material Canadian dollar, sterling, euro and yen exposure translated in., earnings (ttm) ~$1.51 billion of net income and $22.72 of diluted EPS for the twelve months to June 30, 2026, against $1.18 billion and $17.69 in fiscal 2025 and $717 million and $10.73 in 2024. Second quarter 2026 net income was $462 million, or $7.01 per diluted share, versus $180 million and $2.70 a year earlier. Adjusted operating income, the measure management guides to, was $586 million or $8.89 per diluted share in the quarter and $1.048 billion or $15.86 per share for the first half., premiums and segment income (q2 2026) Net premiums of $4.472 billion in the quarter and $9.067 billion year to date, up 11.0% on a reported basis and 9.3% in constant currency excluding pension risk transfer. Pre-tax adjusted operating income by segment: U.S. and Latin America Traditional $165 million and Financial Solutions $154 million, Asia Pacific Traditional $129 million and Financial Solutions $120 million, EMEA Traditional $39 million and Financial Solutions $133 million, Canada Traditional $38 million and Financial Solutions $18 million, with a $35 million loss in Corporate and Other. Total pre-tax adjusted operating income was $761 million., returns and book value Trailing twelve-month ROE of 11.5%, adjusted operating ROE of 17.4%, and 18.4% excluding notable items, all above the 13% to 15% intermediate-term target. Book value per share was $209.73 at June 30, 2026, $173.77 excluding AOCI and $174.11 excluding AOCI and the B36 funds-withheld embedded derivative effect, the last of which has compounded at 10.1% a year since the start of 2021. Total equity stood at ~$13.78 billion on ~$167 billion of assets..

BRK-B and RGA 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 BRK-B and RGA exposure against your real portfolio. It is not an investment adviser.