How Berkshire Hathaway Makes its Money: Revenue Breakdown (FY2024)

How Does Berkshire Hathaway Make its Money?

Berkshire Hathaway Inc. (NYSE: BRK.A / BRK.B) generated $371.4 billion in total revenue in FY2024 by operating one of the most unusual businesses in corporate history: a permanent holding company that owns, in full, a diverse collection of large businesses (GEICO, BNSF Railroad, Berkshire Hathaway Energy, Precision Castparts, and dozens more) while simultaneously managing a $272 billion public equity portfolio and sitting on a record $334 billion in cash and Treasury bills. Total revenue of $371.4B makes Berkshire one of the five largest revenue-generating companies in the United States — behind only Walmart, Amazon, Apple, and ExxonMobil.

But revenue is almost meaningless for understanding Berkshire. Warren Buffett has explicitly said so for decades. The metric that matters is operating earnings — the pre-tax profit from Berkshire’s wholly owned businesses, excluding the volatile swings in unrealized investment gains and losses that GAAP requires to be reported. Berkshire’s operating earnings were $47.4 billion in FY2024, up +27% from $37.4B in FY2023 — a genuinely exceptional result that represents real cash generation from real businesses. GAAP net income was $89.0B, inflated by $41.6B in unrealized investment gains — a number that could be negative next year if markets decline, even if the underlying businesses perform identically.

Berkshire’s business model is one of the most studied in finance: collect insurance premiums to generate float (investable assets owed to future claimants), invest that float at superior rates of return, and use the investment income and operating cash flows from subsidiary businesses to acquire more businesses — compounding capital indefinitely without distributing it as dividends. This machine, built by Warren Buffett since 1965 and now preparing to transfer to designated successor Greg Abel, has compounded book value at approximately 19.8% annually since inception — roughly double the S&P 500’s return over the same period.

Key Takeaways

• Berkshire generated $371.4B in FY2024 total revenue (+1.9% YoY) but the meaningful number is $47.4B in operating earnings (+27%) — the real profitability of the underlying business collection excluding volatile investment gain/loss swings
• Insurance float of $174B+ is the foundational mechanism: Berkshire collects premiums before paying claims, creating a massive pool of investable assets that costs near-zero (or negative) when GEICO/Gen Re earn underwriting profits; this float compounds silently inside Berkshire’s balance sheet
• $334B in cash and Treasury bills — a record, representing approximately 30% of Berkshire’s total equity market cap; Buffett has described finding no sufficiently large acquisition targets at attractive prices; at current T-bill rates (~4.5–5%), this cash generates approximately $15B in annual interest income on its own
• Apple stake reduced from ~$170B to ~$75B across 2024 — Berkshire sold approximately 56% of its Apple position, raising capital; Buffett cited tax rate uncertainty and concentration management; Apple remains the single largest equity holding at ~28% of the public portfolio
• GEICO turnaround complete: GEICO returned to strong underwriting profitability in FY2024 after years of underwriting losses; combined ratio improved dramatically (below 85 in FY2024 vs. 100+ in 2022); improved pricing discipline and telematics adoption drove the recovery
• Berkshire Hathaway Energy (BHE) wildfire liability is the major unresolved risk: BHE subsidiary PacifiCorp faces multi-billion dollar wildfire lawsuit exposure from Oregon/California wildfires; Berkshire took significant charges; total liability is still being litigated and could be $10–30B+
• Greg Abel succession: Warren Buffett (94) is still CEO; Charlie Munger died December 2023; Greg Abel (designated CEO successor, currently vice chairman) is expected to inherit capital allocation decisions; how Abel manages the $334B war chest and future acquisitions is the critical unknown for Berkshire’s next chapter

Berkshire Hathaway (BRK.B) Business Model

Berkshire operates as a permanent capital holding company — fundamentally different from private equity (which has a fund lifecycle and must return capital) or a mutual fund (which is purely a portfolio of public securities). For how conglomerate holding companies capture and compound value, see the Conglomerate Business Model.

The insurance float engine — the foundation of everything:

Berkshire’s single most important competitive advantage is its insurance operation’s float. Float is the pool of money insurance companies hold between collecting premiums and paying claims. An insurer that collects $10B in premiums in January and pays $9B in claims over the following 12 months has held $10B of other people’s money for a year, investing it to generate returns. If the insurer earns $1B in underwriting profit (premiums minus claims minus expenses), the float was “free” — Berkshire got paid to hold $10B and invest it.

Berkshire’s insurance float has grown from $39M in 1970 to $174B+ in FY2024. This float is invested in Treasury bills, bonds, and equities — generating investment income that flows through Berkshire’s earnings regardless of the insurance subsidiaries’ underwriting results. Buffett calls float “better than free” in years when underwriting generates a profit — meaning Berkshire not only gets to invest $174B for free, it gets paid a bonus (underwriting profit) on top.

The compounding machine:

Berkshire’s capital allocation model has three distinct layers:

1. Operating businesses generate cash — BNSF, BHE, manufacturing, McLane, and services collectively generate tens of billions in operating cash annually; this cash flows up to the Berkshire parent company
2. Insurance float generates investment returns — $174B in float invested primarily in Treasury bills and equity securities earns substantial returns; at 4.5–5% on the T-bill portion alone, this generates $7–9B annually just from the cash/bills inside insurance subsidiaries
3. Parent company deploys capital — Buffett and (soon) Abel allocate all incoming cash to: buying more businesses (wholly owned acquisitions), buying public equity stakes, buying back Berkshire stock, or simply accumulating cash when no attractive opportunities exist

This model is self-reinforcing: more float → more investment income → more capital to deploy → more acquisitions → more operating earnings → more capital to deploy. Berkshire has never paid a dividend (except one modest dividend in the 1960s that Buffett jokes he was in the bathroom when the board decided). All capital stays inside the machine.

Why Berkshire doesn’t distribute dividends:

Buffett’s argument: if Berkshire can earn returns above what shareholders would earn reinvesting dividends elsewhere, retaining capital creates more value than distributing it. Given Berkshire’s long-term track record of ~19.8% annual book value growth vs. the S&P 500’s ~10.5%, this argument has been empirically validated over 60 years. The reinvestment of all earnings into an ever-larger capital base — compounding at high rates — is what transformed a failing textile mill into a $1.1 trillion company.

Berkshire Hathaway Competitors

Berkshire has no true direct competitors — no other company combines insurance float, wholly owned industrial businesses, and a massive public equity portfolio under permanent capital management at this scale. The closest analogs:

• Markel Corporation — often called “baby Berkshire”; insurance-centric holding company with a public equity portfolio and wholly owned businesses; ~$25B market cap; follows the Berkshire playbook but at a fraction of the scale
• Fairfax Financial (Canada) — Prem Watsa’s insurance-and-investment holding company; similar philosophy to Berkshire; has had more volatile results but manages significant global insurance and equity assets
• Alleghany — Berkshire actually acquired Alleghany in 2022 for $11.6B, removing a Berkshire-comparable competitor from the public market entirely

Portfolio company competitors (selected):

• JPMorgan Chase — Berkshire held Wells Fargo for decades; JPMorgan and Berkshire share the same “financial services” classification; Buffett has studied JPMorgan closely and holds Bank of America as a top-5 equity holding
• Union Pacific — BNSF’s primary Class I railroad competitor; the two companies dominate western and central U.S. freight rail respectively; Union Pacific is publicly traded while BNSF is 100% Berkshire-owned
• Apple — Berkshire’s largest equity holding (even after reduction); Apple’s cash generation and capital return program make it Buffett’s highest-conviction large-cap holding

For financial sector context, see JPMorgan vs Bank of America and Apple vs Microsoft for the technology holdings context.

Revenue Breakdown

Financial data sourced from Berkshire Hathaway FY2024 Annual Report (10-K).

Insurance — $83.0B in Premiums, Float of $174B

Insurance is Berkshire’s most strategically important segment — not for premium revenue, but for the underwriting profitability and float it generates. The insurance operation includes:

GEICO — the #2 U.S. personal auto insurer (~19% market share), behind State Farm. GEICO’s model: direct-to-consumer via TV and digital advertising (no captive agents), low operating costs, and competitive pricing. GEICO struggled with underwriting losses from 2020–2022 when used-car prices spiked (making auto claims far more expensive) and GEICO was slow to raise premiums. Under new CEO Todd Combs (Berkshire investment manager turned GEICO CEO), GEICO implemented aggressive pricing discipline and began investing in telematics (usage-based pricing that tracks driving behavior). By FY2024, GEICO’s combined ratio dropped below 85 — an exceptional underwriting result, meaning GEICO earned approximately $4–5B in underwriting profit before investment income.

Berkshire Hathaway Reinsurance Group — one of the world’s largest reinsurers; covers catastrophic risks (hurricanes, earthquakes, large industrial accidents) that primary insurers want to offload. Reinsurance generates massive float because claims may take years or decades to resolve after a catastrophic event. Ajit Jain has run Berkshire’s reinsurance operations since 1986 and is widely credited with building one of the world’s most disciplined underwriting cultures.

General Re — acquired in 1998 for $22B in stock (Buffett later called this one of his costly mistakes due to integration challenges, though the business has performed well long-term); large global reinsurer across property/casualty and life.

Insurance Float trend:

This float earns investment returns at the Berkshire parent level — primarily invested in T-bills ($288B+) and equity securities ($272B public portfolio). Even at 4.5% average yield, $174B in float generates ~$7.8B in annual investment income for Berkshire.

BNSF Railway — $22.8B Revenue

BNSF (Burlington Northern Santa Fe) is one of the two largest freight railroads in the United States, operating 32,500+ route miles across 28 states west of the Mississippi. Berkshire acquired BNSF in 2010 for $44B — Buffett’s largest acquisition at the time, which he called “an all-in wager on the economic future of the United States.”

BNSF hauls: consumer products (intermodal containers from West Coast ports), coal (declining but still significant), agricultural commodities (grain, soybeans), industrial products (chemicals, lumber, metals), and automotive. Revenue of $22.8B in FY2024 was slightly down (-1.3%) as coal volumes continued their secular decline and intermodal volumes were pressured by trucking competition and West Coast port dynamics.

BNSF earns operating earnings of approximately $5–6B annually — a remarkably consistent cash generator. The railroad’s competitive moat: railroads hold permanent, exclusive right-of-way over fixed track — Union Pacific and BNSF are the only two Class I western railroads, and no new transcontinental railroad will ever be built. Railroads are 4x more fuel-efficient than trucks per ton-mile, making them structurally competitive for bulk freight.

Berkshire Hathaway Energy — $24.0B Revenue

BHE is one of the largest utility holding companies in the U.S., operating regulated electric utilities (PacifiCorp in the Pacific Northwest, MidAmerican Energy in Iowa, NV Energy in Nevada), natural gas pipelines (Northern Natural Gas, Kern River Gas Transmission), and renewable energy (solar, wind — one of the largest U.S. renewable generators). BHE has historically been valued as a predictable regulated utility — earning regulated returns set by state public utility commissions.

The wildfire liability crisis: In 2023–2024, BHE’s PacifiCorp subsidiary was found liable by Oregon courts for wildfires allegedly caused by its power lines in 2020 (Labor Day fires). Plaintiff jury awards in initial trials were massive — potential total liability could reach $10–30B+ across all pending cases. Berkshire has already taken significant write-downs against BHE’s carrying value on its balance sheet. This situation removed BHE from Berkshire’s “reliably predictable” category and turned it into an uncertain liability — the most significant operational risk Berkshire has faced in decades. Buffett discussed the BHE situation extensively in his 2024 annual letter, noting that while BHE remains a good business, the litigation risk means it cannot currently upstream dividends to Berkshire’s parent company.

Manufacturing — $74.5B Revenue

A vast collection of industrial businesses including:

• Precision Castparts (PCC) — aerospace components manufacturer (turbine blades, structural castings for Boeing, Airbus, and defense); Berkshire acquired PCC in 2016 for $37B; COVID devastated PCC’s aerospace customers; recovery is ongoing as Boeing/Airbus production ramps
• Lubrizol — specialty chemicals (engine additives, industrial lubricants); ~$6B revenue; stable cash generator
• IMC (International Metalworking Companies) — metalworking tools; global leader in its niche
• Forest River — RV and vehicle manufacturer (trailers, buses, pontoon boats)
• Marmon Holdings — 100+ industrial businesses across manufacturing and services
• Clayton Homes — largest U.S. manufactured housing producer; also the largest manufactured home lender; benefiting from housing affordability crisis driving demand for lower-cost housing alternatives

McLane Company — $52.0B Revenue

McLane is a wholesale grocery and foodservice distributor — delivering products to Walmart, convenience stores, fast food chains, and military commissaries. Revenue of $52.0B makes McLane one of the largest companies in the U.S. by revenue, but operating margins are thin (2–3%) as distribution is a low-margin logistics business. McLane was acquired from Walmart in 2003 for $1.5B.

Investment Income — The Treasury Bill Mountain

With $334B in cash and T-bills at a parent-level yield of ~4.5–5%, Berkshire earns approximately $15–17B annually in interest income just from its cash pile — an amount that exceeds the annual profits of most S&P 500 companies. This interest income flows through operating earnings and is part of why FY2024 operating earnings ($47.4B) were so strong.

The Public Equity Portfolio

Berkshire’s public stock portfolio (managed by Buffett with input from Ted Weschler and Todd Combs) held approximately $272 billion in public equities at year-end FY2024:

Apple stake reduction (the most significant 2024 portfolio move): Berkshire reduced its Apple position from approximately 905 million shares (~$170B) at end-2023 to approximately 300 million shares (~$75B) during 2024 — selling roughly 56% of the position over four quarters. Buffett’s stated reasoning: expectation of higher future capital gains tax rates (selling now at 21% vs. potentially higher rates later), and maintaining portfolio diversification. Apple remains the largest single equity holding but at less than 28% of the portfolio vs. 50%+ previously. The Apple reduction generated significant realized gains and contributed to Berkshire’s tax payments.

Revenue Trend (3-Year)

The GAAP net income volatility is illustrative of why Buffett rejects it as a performance measure. FY2022 showed a -$22.8B net loss, FY2023 showed $96.2B net income, FY2024 showed $89.0B — purely driven by unrealized equity gains/losses in the portfolio (which GAAP requires to be marked to market through income). The underlying businesses didn’t collapse in 2022 or explode in 2023 — stocks just declined and then recovered. Operating earnings ($28.7B → $37.4B → $47.4B) tell a more consistent story: the businesses generate growing, real earnings.

Berkshire Hathaway (BRK.B) Income Statement

Financial data sourced from Berkshire Hathaway SEC filings.

Key Financial Metrics

• Operating Margin — not meaningfully applicable to Berkshire in the traditional sense; at the segment level, GEICO’s combined ratio (below 85 = exceptional), BNSF’s operating ratio (~65–70%), and BHE’s regulated returns are the segment-level profitability metrics; at the consolidated level, operating earnings ($47.4B) on total revenue ($371.4B) implies ~12.7% but this conflates high-margin insurance investment income with low-margin McLane distribution revenue

• Gross Margin — similarly not directly applicable; Berkshire’s economics are better measured through return on equity (ROE), return on tangible equity, and operating earnings per share; book value per A share is approximately $427,000–$450,000; operating earnings of $47.4B on ~$570B in equity implies a mid-single-digit ROE on book value, but this understates the true return on Berkshire’s intrinsic value (which is higher than book value due to appreciated assets like BNSF, carried at historical cost)

• Free Cash Flow: ~$30–40B annually — Berkshire’s subsidiaries collectively generate massive FCF; BNSF alone generates $4–6B annually, GEICO and reinsurance generate float + underwriting profits, manufacturing businesses collectively generate $5–8B; FCF is the raw material for Berkshire’s capital allocation decisions (acquisitions, buybacks, equity purchases)

• Return on Invested Capital — Berkshire’s compounding record (19.8% annual book value growth since 1965) represents the most impressive long-term ROIC track record in public market history; however, past ROIC is increasingly difficult to sustain at Berkshire’s current $1.1T scale — finding acquisitions large enough to move the needle becomes exponentially harder as the company grows

• Share Buyback activity — Berkshire repurchased approximately $2.9B in stock in FY2024 — meaningful but well below the $9B (FY2021) and $7.9B (FY2022) peak buyback years; the reduced buyback pace likely reflects Buffett’s view that BRK.B shares became less attractively priced as the stock re-rated upward; Berkshire will only buy back stock when Buffett believes it trades below intrinsic value

• Book Value per A share: ~$427,000–$450,000 — Berkshire’s traditional intrinsic value proxy; however, Buffett has explicitly stated that book value increasingly understates intrinsic value because GAAP book value reflects subsidiaries at historical cost (BNSF paid $44B in 2010; its current economic value is likely $60–80B+), while the investment portfolio is marked to market

Is Berkshire Hathaway Profitable?

Yes — significantly. Berkshire reported $47.4 billion in operating earnings in FY2024 (+27% YoY) and $89.0 billion in GAAP net income (including $41.6B of unrealized investment gains). Operating earnings is the more reliable profitability measure — it represents cash earnings from real businesses. At $47.4B operating earnings on a $1.1T market cap, Berkshire trades at approximately 23x operating earnings — a reasonable multiple for a collection of high-quality, durable businesses with $334B in additional capital waiting to be deployed.

The nuance: Berkshire’s profitability is partly cyclical. GEICO’s strong underwriting profit in FY2024 (combined ratio below 85) contributed several billion in incremental operating earnings vs. FY2022’s underwriting losses. If auto insurance loss trends worsen (social inflation, severe weather, used-car price spikes), GEICO’s contribution could normalize. Similarly, $334B in cash at 4.5–5% T-bill rates generates ~$15–17B in interest income — but every 100bps of Fed rate cuts reduces that by ~$3.3B annually.

The Succession Question: Warren Buffett → Greg Abel

Warren Buffett turned 94 in August 2024. Charlie Munger, Berkshire’s longtime vice chairman and Buffett’s intellectual partner, died in December 2023 at age 99. Greg Abel — currently vice chairman for non-insurance operations and member of the Berkshire board — has been publicly designated as Buffett’s successor as CEO.

Abel has managed Berkshire’s non-insurance operating businesses for years and is broadly respected within the company. The succession is more orderly than many feared — Abel is Berkshire-cultured, understands the capital allocation philosophy, and has operational credibility. But key uncertainties remain:

1. Can Abel deploy $334B+ at Berkshire-level returns? Buffett’s unique combination of brand credibility (sellers accept lower prices to sell to Berkshire), analytical edge, and 60-year relationships is irreplaceable. Abel may be an excellent operator and capital allocator but lacks the same access to deal flow and the same seller preference that Buffett’s reputation generated
2. Will the portfolio management philosophy change? Ted Weschler and Todd Combs manage a portion of the public portfolio; Abel is not primarily a public equities investor; it’s possible that portfolio management becomes more formulaic or institutional under new leadership
3. BHE wildfire resolution — Abel spent much of his Berkshire career building BHE; the wildfire litigation is a personal and strategic challenge for him as potential CEO

Buffett has emphasized that Berkshire’s decentralized culture and permanent capital structure will outlast any individual — subsidiaries run themselves autonomously, don’t compete for internal capital, and are never sold. These structural features are embedded in Berkshire’s organizational DNA, not dependent on Buffett personally.

What to Watch

1. Operating earnings growth in FY2025 — with GEICO now delivering exceptional underwriting results, BNSF volumes recovering (if freight markets improve), and T-bill income stable, operating earnings could sustain $45–50B+; any deceleration from FY2024’s $47.4B would signal weakness in one of the major subsidiaries; track insurance combined ratios (particularly GEICO’s) and BNSF’s operating ratio quarterly

2. Capital deployment of the $334B cash pile — this is the most consequential question in Berkshire’s near-term future; Buffett has stated the cash is “ready and willing” but acquisition targets at attractive prices are scarce at Berkshire’s scale (a $50B deal moves the needle meaningfully; there are few public companies that large available at reasonable valuations); watch for any large acquisition announcement — it would be the most significant news event in Berkshire’s recent history

3. BHE wildfire litigation resolution — PacifiCorp’s total liability exposure from Oregon/California wildfires is still being determined through ongoing court proceedings; a global settlement or adverse final judgment in the $10–30B range would be a meaningful balance sheet event; Berkshire has sufficient capital to absorb even a worst-case outcome, but resolution would remove a significant uncertainty overhanging BHE’s value

4. Greg Abel succession timing — Buffett has not given any timeline for stepping down; he continues to be active (annual letter, Berkshire annual meeting, public interviews); the transition will happen on Buffett’s terms, not a fixed timeline; investors should monitor for any health disclosures, changes in Berkshire’s governance structure, or explicit transition milestones that Buffett communicates

5. Interest rate sensitivity of the cash pile — $334B in T-bills at ~4.5–5% generates ~$15–17B annually; if the Fed cuts rates to 2–3%, this income stream could decline by $5–8B annually, meaningfully affecting operating earnings without any change in the underlying businesses; Berkshire’s operating earnings are now materially rate-sensitive in a way they weren’t when cash levels were lower

6. BNSF vs. Union Pacific volume trends — freight rail volumes are a real-time economic indicator; Union Pacific reports publicly and provides a benchmark for BNSF performance; intermodal volume growth (consumer goods from ports), grain export trends (agricultural commodity prices), and coal volume decline are the three drivers to watch; any sustained volume growth at BNSF would add meaningfully to operating earnings given the operating leverage of a fixed-cost railroad

Berkshire Hathaway (BRK.B) Financial Summary

Berkshire Hathaway (NYSE: BRK.A / BRK.B) generated $371.4 billion in total revenue in FY2024, up +1.9%, with $47.4 billion in operating earnings (+27%) — the number that actually matters. GAAP net income was $89.0B, inflated by $41.6B in unrealized equity gains that will reverse in down markets. The company holds a record $334 billion in cash and Treasury bills and a $272 billion public equity portfolio anchored by Apple, American Express, Bank of America, and Coca-Cola. Insurance float of $174B+ continues to compound at near-zero cost, GEICO has returned to exceptional underwriting profitability, BNSF generates $5–6B in annual operating earnings, and the manufacturing/service subsidiaries provide durable cash generation. The unresolved risks are BHE wildfire liability and the eventual capital allocation decisions of the Greg Abel succession. Berkshire’s 60-year compounding record (19.8% annual book value growth) is the most remarkable in public market history — and the central question for the next decade is whether that record can be approximated, or even approached, as the company manages $1.1T in assets without its architect.

For financial services context, see JPMorgan vs Bank of America and Apple vs Microsoft for the equity portfolio benchmarking. See the Conglomerate Sector for the broader holding company framework.