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BRK-B
Berkshire Hathaway Inc. Class B · Financial Services / Diversified Holding Company
$489.46
+1.87% this month
VERSUS
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COMPARE
AIG
American International Group Inc. · Financial Services / Property & Casualty Insurance
$74.02
-4.53% this month
Scoreboard verdict
Across AI score, momentum, valuation, upside, operating margin
BRK-B
2
AIG
3
Comparison scoreboard
AIG LEADS 3/5AI Score
BRK-B ✓50.7
AIG 40.5
1Y Return
BRK-B ✓+1.24%
AIG -12.11%
Fwd P/E
BRK-B 22.79
AIG ✓8.32
Target Up.
BRK-B +6.31%
AIG ✓+18.62%
Op. Margin
BRK-B 14.35%
AIG ✓18.62%
Metrics last refreshed: 6/22/2026
Quick take
BRK.B vs AIG Stock Comparison: AI Score, Valuation, Performance and Upside
BRK.B and AIG represent different insurance-based investment theses. Berkshire Hathaway uses insurance float to fund one of history's greatest investment portfolios — Buffett's capital allocation track record is the core investment thesis. AIG is a commercial insurance recovery story — rebuilding underwriting discipline and shareholder value after a near-catastrophic 2008 collapse. Berkshire is an established conglomerate; AIG is a turnaround requiring sustained execution confidence.
BRK.B vs AIG — Berkshire Hathaway Class B (Warren Buffett's insurance-float-funded conglomerate with $350B+ equity portfolio, 60+ operating businesses, and 58-year compounding track record at 20% annual book value growth) versus AIG (global commercial insurance company rebuilding underwriting quality post-2008 bailout under new management with Corebridge stake monetization providing capital return).
Live analysis · updated 6/22/2026
AIG holds the edge across 3 of 5 key metrics in this comparison. BRK-B has delivered stronger 1-year price return (+1.24% vs -12.11%), though AIG trades at the lower forward P/E (8.32x vs 22.79x). On fundamentals, BRK-B is growing revenue faster (4.40%), while AIG maintains the higher operating margin (18.62%) — a classic growth-versus-profitability split. Analyst consensus implies meaningfully more upside for AIG (+18.62%) than for BRK-B (+6.31%).
Normalized 1Y performance
BRK-B
AIG
Recent returns
BRK-B
AIG
Analyst price targets & sentiment
BRK-B · 3 analysts
STRONG BUYHOLDSTRONG SELL
Buy (2.0/5.0)
Price target range
analyst low$485.00
analyst high$591.00
analyst mean$520.33
current price$489.46
+6.3% upside to analyst mean
AIG
Price target range
analyst mean$87.80
current price$74.02
+18.6% upside to analyst mean
Who should consider this stock?
BRK.B may suit investors who:
- →want Warren Buffett's diversified holding company approach — effectively owning a portfolio managed by history's greatest capital allocator with built-in insurance float financing
- →prefer BRK's conglomerate resilience across insurance, rail, utilities, and manufacturing vs pure-play insurance company cyclicality
- →are comfortable with Buffett succession risk as Greg Abel transitions to leadership — trusting that Berkshire's culture and structure will survive the eventual leadership change
- →value Berkshire's $170B+ cash reserve as both strategic optionality for large acquisitions and downside protection during market dislocations
AIG may suit investors who:
- →believe AIG's underwriting transformation under CEO Zaffino is genuine and durable — the commercial insurance combined ratio improvement reflects real cultural change rather than cyclical improvement
- →want exposure to global commercial insurance recovery at valuation discount to Chubb — AIG trades cheaper than best-in-class commercial insurers if the turnaround is credible
- →value Corebridge Financial stake monetization as a capital return catalyst — selling the life insurance business stake provides BuyBack and dividend funding
- →are comfortable with AIG's 2008 legacy risk and the ongoing management execution risk of a complex global insurance organizational transformation
Performance & AI score
| Metric | BRK-B | AIG |
|---|---|---|
| AI score | 50.7 | 40.5 |
| AI rank | #425 | #1048 |
| Latest close | $489.46 | $74.02 |
| 1M return | +1.87% | -4.53% |
| 6M return | -2.94% | -14.07% |
| 1Y return | +1.24% | -12.11% |
$10,000 invested — hypothetical growth (dividends reinvested)
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | BRK-B | AIG |
|---|---|---|
| 1Y ago | $10.09K (+0.9%) started 2025-06-18 | $8.79K (-12.1%) started 2025-06-18 |
| 5Y ago | $17.66K (+76.6%) started 2021-06-21 | $18.42K (+84.2%) started 2021-06-21 |
| 10Y ago | $34.55K (+245.5%) started 2016-06-20 | $21.98K (+119.8%) started 2016-06-20 |
Hypothetical — past performance does not guarantee future results.
Valuation & upside potential
| Metric | BRK-B | AIG |
|---|---|---|
| Market cap | $1.06T | $39.25B |
| Trailing P/E | 14.58 | 13.03 |
| Forward P/E | 22.79 | 8.32 |
| Price/Sales | 2.87 | N/A |
| EV/Revenue | -0.71 | 1.45 |
| Analyst target | $520.33 | $87.80 |
| Target upside | +6.31% | +18.62% |
Growth, profitability & risk
| Metric | BRK-B | AIG |
|---|---|---|
| Revenue growth | 4.40% | 1.40% |
| Earnings growth | 119.60% | 21.60% |
| EPS growth | +119.60% | +21.60% |
| FCF margin | +16.31% | +35.64% |
| Operating margin | 14.35% | 18.62% |
| Profit margin | 19.30% | 11.84% |
| ROIC proxy | 10.50% | 7.72% |
| Return on equity | 10.50% | 7.72% |
| Dividend yield | N/A | 2.70% |
| Beta | 0.62 | 0.54 |
| Debt/equity | 17.67 | 22.65 |
| Current ratio | 2.88 | 0.61 |
| Quick ratio | 2.70 | 0.20 |
Drawdown & downside risk
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
1Y risk snapshot
BRK-B max drawdown9.42%
AIG max drawdown16.98%
BRK-B max wkly drop4.69%
AIG max wkly drop12.19%
5Y risk snapshot
BRK-B max drawdown26.58%
AIG max drawdown26.45%
BRK-B max wkly drop11.48%
AIG max wkly drop17.02%
10Y risk snapshot
BRK-B max drawdown29.57%
AIG max drawdown69.58%
BRK-B max wkly drop15.79%
AIG max wkly drop41.36%
Performance metrics by period
| Period | Metric | BRK-B | AIG |
|---|---|---|---|
| 1Y | Growth | +0.89% | -12.14% |
| CAGR | +0.89% | -12.16% | |
| Sharpe ratio | -0.18 | -0.62 | |
| Max drawdown | 9.42% | 16.98% | |
| Max daily drop | 4.91% | 7.48% | |
| Max wkly drop | 4.69% | 12.19% | |
| 5Y | Growth | +76.64% | +68.75% |
| CAGR | +12.07% | +11.05% | |
| Sharpe ratio | 0.49 | 0.36 | |
| Max drawdown | 26.58% | 26.45% | |
| Max daily drop | 6.91% | 8.41% | |
| Max wkly drop | 11.48% | 17.02% | |
| 10Y | Growth | +245.49% | +72.06% |
| CAGR | +13.21% | +5.58% | |
| Sharpe ratio | 0.51 | 0.19 | |
| Max drawdown | 29.57% | 69.58% | |
| Max daily drop | 9.59% | 20.84% | |
| Max wkly drop | 15.79% | 41.36% |
Business comparison
| Category | BRK-B | AIG |
|---|---|---|
| Company | Berkshire Hathaway Inc. Class B | American International Group Inc. |
| Sector | Financial Services | Financial Services |
| Industry | Insurance - Diversified | N/A |
| Core business | Berkshire Hathaway is Warren Buffett's diversified holding company built around insurance float. Core insurance operations include GEICO (personal auto insurance), Berkshire Hathaway Reinsurance Group, and General Re. These generate float (premiums collected before claims paid) that Buffett invests in equities (Apple, Coca-Cola, American Express, Bank of America, and 40+ others at $350B+ equity portfolio value), operating businesses (BNSF railroad, Berkshire Hathaway Energy utilities, manufacturing companies), and cash/Treasuries ($170B+ cash equivalent). Berkshire's unique model uses cheap insurance float to fund diversified equity investments compounding at exceptional rates over 50+ years. | AIG is one of the world's largest commercial insurance companies — providing property, casualty, specialty, and financial lines insurance to corporations, institutions, and governments globally. AIG's 2008 financial crisis near-collapse (from credit default swap exposure in its financial products subsidiary) required a $182B government bailout — one of history's largest insurance disasters. The post-2008 decade involved restructuring, government stock sales, and refocusing AIG on its core commercial insurance operations. AIG has divested life insurance (separated as Corebridge Financial in 2022) and returned to a pure commercial P&C focus under CEO Peter Zaffino. |
| Investor focus | Investors focus on Berkshire's equity portfolio performance (Apple, Coca-Cola, American Express dominance), operating business earnings (BNSF, BHE), underwriting profitability of GEICO and reinsurance, and Buffett succession planning (Greg Abel is designated successor). | Investors focus on AIG's commercial insurance combined ratio improvement, Corebridge Financial stake monetization, capital return through buybacks, and whether AIG's underwriting culture can sustainably achieve Chubb-like discipline after years of legacy problems. |
BRK-B strengths
- →Unique insurance float investment model: Berkshire's insurance float provides essentially free or negative-cost financing for equity investments — compounding advantage over normal insurance companies that merely earn underwriting profit
- →Diversified conglomerate resilience: 60+ operating businesses across insurance, rail, utilities, manufacturing, and retail provide earnings diversification no pure-play insurer can match
- →Buffett's capital allocation excellence: 58-year track record of exceptional investment decisions compounding book value at 20%/year — the longest and best capital allocation track record in business history
AIG strengths
- →Global commercial insurance platform: AIG has one of the broadest global commercial insurance networks — 70+ countries, specialty insurance products, and relationships with the world's largest corporations
- →Management transformation under Zaffino: AIG has made genuine progress on underwriting discipline, portfolio remediation, and cultural transformation since Zaffino became CEO in 2021
- →Capital return as Corebridge stake is monetized: selling AIG's Corebridge Financial stake releases capital for buybacks and dividends — shareholder returns are improving
Risks to watch — BRK-B
- →Buffett succession uncertainty: Greg Abel as designated CEO successor has yet to demonstrate Buffett's investment philosophy in practice — transition risk remains a genuine long-term concern
- →Apple concentration: Apple represents 40%+ of Berkshire's equity portfolio — concentration in a single technology company creates significant single-stock risk at portfolio scale
- →Size limits returns: Berkshire's $900B+ market cap limits investment universe — Buffett has repeatedly noted that Berkshire's size makes future return matching historical rates essentially impossible
Risks to watch — AIG
- →2008 legacy and cultural residue: AIG's near-failure in 2008 reflects fundamental cultural and risk management failures — whether these have been truly remedied is an ongoing question for investors
- →Combined ratio improvement pace vs peers: AIG's underwriting quality is improving but still trails best-in-class commercial insurers like Chubb — competitive gap narrowing but not eliminated
- →Management execution risk: AIG's transformation is personnel-dependent — new CEO strategy execution requires sustained organizational change in a complex global insurance organization
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