BERKLEY W R CORP (WRB) stock intrinsic value fair value estimate & owner earnings analysis

W. R. Berkley is a U.S.-based property and casualty insurer and reinsurer. It sells specialty commercial insurance through separately run underwriting units, plus reinsurance and monoline excess coverage in the United States, United Kingdom, Continental Europe, Australia and Asia-Pacific. It earns money two ways: profit on the policies it writes, and investment income on the premiums it holds until claims are paid. HOW WE MEASURED EARNINGS An insurer's operating cash flow is inflated whenever its book grows, because premiums arrive before claims are paid. In 2025 the net working-capital and float movement (mostly growth in loss reserves of $1.77 billion and unearned premiums of $0.32 billion) added $1.94 billion to cash flow. We remove all of it, because it is timing, not earnings. We also deduct stock compensation ($54.5 million in 2025) and maintenance capital spending ($162 million; the rest of the $170 million spent on property and equipment is treated as growth). Realized investment gains ($132 million in 2025), non-cash income from investment funds and bond-discount accretion are not counted until they arrive as cash. The result is owner earnings of $1.42 billion, or $3.56 per share, in 2025, against reported net income of $1.78 billion. We rebuilt the 2025 figure independently from net income plus non-cash items and it matches operating cash flow less working-capital movement exactly ($1,640.8 million). Because interest on the company's debt is already deducted in these earnings, and borrowing is part of how an insurer operates, we do not subtract the debt a second time. Owner earnings per share, 2016 to 2025: $0.66, $0.30, $0.91, $1.28, $1.04, $1.91, $2.36, $2.99, $3.67, $3.56. THE STARTING POINT We start from $2.36 per share, the median of 2019 through 2025. That window covers the 2020 dip and the whole period of rising insurance prices. We leave out 2016 to 2018: revenue was about half today's ($7.7 billion versus $14.7 billion) and pricing was soft. The starting point is 34% below the latest year on purpose. Insurance pricing is cyclical, and the last two years' margins (owner earnings of about 10% of revenue) should not be assumed to last. Growth check: owner earnings per share fell 2.9% in 2025, from $3.67 to $3.56. Our first-year growth assumption is +3% from the lower starting point, which is above that trailing figure, so here is why. The 2025 decline came entirely from capital spending, which rose from $94 million to $162 million on a maintenance basis. Cash earnings before those items were up slightly ($1,640.8 million versus $1,627.4 million). And in the six months to June 30, 2026, net income was $967.5 million versus $818.9 million a year earlier (+18%), while diluted shares fell 1.7%, from 400.1 million to 393.3 million. GROWTH WE CREDIT, AND WHAT WE LEAVE OUT We credit only growth that is already happening through the company's own cash. First, steady share repurchases: diluted shares fell from about 435 million in 2019 to about 400 million in 2025, roughly 1.4% a year, including through the 2020 downturn. Second, investing profits kept after dividends (dividends were $700 million in 2025, including special dividends) in the bond portfolio. That supports 3% a year for five years, then 2% a year for five years. It is well below the roughly 19% a year owner earnings per share grew from 2019 to 2025. We give no credit for further premium growth, price increases, new products or wider margins, because none of them is contracted or secured. THE THREE CASES Base case: $48.05 per share. Owner earnings start at $2.36 and grow to $2.74 in year five and $3.02 in year ten. After year ten we assume the earnings level simply continues with no further growth, because the underwriting units and bond-portfolio income already in place are the only things we can point to. Years one to ten are worth $19.95 and the years after are worth $28.10, discounted at 6%. The company's debt is already paid out of these earnings, so nothing further is subtracted: worth $48.05, owed nothing additional, difference $48.05. Bear case: $25.81 per share. Commercial insurance pricing softens as it did in 2016 to 2018, when owner earnings ran only 1.7% to 5.1% of revenue (about 3.5% on average) and $0.30 to $0.91 per share. On today's $14.7 billion of revenue that is roughly $514 million, or $1.31 per share. The path is $1.83 in year one, $1.31 in years two to five, then a return to $1.59, the ten-year median, for years six to ten and beyond, with no growth. The company has about $2.8 billion of fixed-rate senior and subordinated debt costing about $126 million a year in cash interest. The senior notes carry rates of 3.15% to 6.25% and fall due between 2037 and 2061, so there is no refinancing pressure inside the forecast. In the trough year owner earnings before interest would still cover interest about five times (about $640 million against $126 million). Worth $25.81, no further debt subtracted, difference $25.81. Bull case: $78.46 per share. Owner earnings hold at the 2025 level of $3.56, a level the company has already reached, and grow 4% a year for five years and 3% for five years, reaching $5.02 in year ten, then continue flat. This needs no new business, only that current pricing and underwriting results persist and the repurchase and reinvestment pattern continues. Worth $78.46, no further debt subtracted, difference $78.46. WHAT CHANGED SINCE OUR EARLIER ESTIMATE Our earlier estimate was $42.85 / $91.18 / $169.49 (bear/base/bull). The business has not deteriorated; the latest half-year results are stronger. The change is in how we measure. Before, earnings started from reported net income of about $1.9 billion, which includes investment gains and non-cash income. Now we use stricter cash-based owner earnings ($1.42 billion in 2025, and a lower $2.36 per share starting point), a fixed 6% discount rate and only modest growth that is already in evidence. WHAT WE TRIED TO BREAK We tested whether claim reserves might be too thin, which would make current earnings overstated. The 2025 filing shows overall favorable development in the Reinsurance & Monoline Excess segment ($47 million favorable in 2025), driven by property and workers' compensation. Casualty reinsurance assumed, mainly accident years 2019 to 2023, developed adversely, and the workers' compensation benefit has moderated. This is a real risk. The low starting point and the bear case are built to absorb it, but a larger casualty reserve problem would reduce our estimate. WHAT WOULD MAKE THIS ESTIMATE WRONG A sharper or longer price decline than 2016 to 2018; casualty claims costs rising further; a fall in bond yields that lowers investment income; or the company's cash flow shifting in ways our adjustments do not capture. Mitsui Sumitomo Insurance owns about 14.7% of the shares (as of February 2026) under voting and other arrangements that can make a takeover harder. MARGIN-OF-SAFETY PRICE The margin-of-safety price is $31, about 35% below the base case and about 20% above the bear case. The margin is wide because insurance earnings are cyclical and half or more of every case's value lies beyond year ten.