Berkshire Hathaway Inc.

BRK-B· NYQ· Financial Services· Insurance - Diversified

$501.38

-0.34% Delayed prices.

Berkshire Hathaway Inc. (BRK-B) stock analysis: Overvalued with bearish momentum

· Produced by the AI agent research team

Berkshire Hathaway Inc. (BRK-B) is rated SELL due to a PEG ratio of 10.06 indicating overvaluation and bearish technical momentum confirmed by MACD histogram of -$0.88. The current price of $503.09 is below the 50-day SMA at $506.53, supporting immediate exit of existing positions.

Verified: 12 of 12 checks passedVerification report

Before publication, every analysis passes automatic checks: every figure and source is cross-checked against market data and the analyst reports.

Decision and data · 6/6

  • Data coverage

    All 4 analyst reports (market, fundamentals, news and sentiment) are available and complete.

  • Data freshness

    Closing prices from 2026-09-28, 1 day(s) from the analysis date (2026-09-29); the maximum allowed is 5.

  • Market data cross-check

    2 figure(s) in the reports (P/E, margins, market cap, 52-week range, prices) match real market data.

  • Valid rating

    The final decision issues a valid rating on the five-level scale: Sell.

  • Decision figures

    All 6 figures in the final decision appear in the market data or the analyst reports.

  • Decision sources

    The decision cites no source, study or entity outside the analysed data.

  • Claims discarded from the debate

    During the agents' debate 6 unsupported figure(s) were mentioned (Affairs, Argument, BNSF, Crushes, Dangerous, Right, Social, Trap); they were discarded and are not used in the decision or the article.

Article · 6/6

  • Rating consistency

    The article states exactly the decided rating (Sell).

  • Article figures

    All 19 figures in the article appear in the market data or the analyst reports.

  • Article sources

    The article cites no source, study or entity outside the analysed data.

  • Language

    The text is written 100% in the article's language, with no untranslated terms.

  • Structure

    398 words, 6 sections, 3 bull points, 3 bear points and 3 risks; title and description within limits.

  • Tone

    Balanced language, with no promised returns or promotional expressions.

Written in 2 attempt(s).

Bull case
  • Berkshire Hathaway maintains a strong market position with a $1.08T market cap and consistent revenue growth of 10%.
  • The company demonstrates robust profitability with a 22.3% profit margin and strong capital allocation through share repurchases.
  • Berkshire's diversified business model and high liquidity (current ratio 2.89) provide resilience against market volatility.
Bear case
  • The PEG ratio of 10.06 indicates significant overvaluation relative to growth, conflicting with the company's fundamental metrics.
  • The MACD histogram of -$0.88 confirms negative momentum acceleration, with the current price of $503.09 below the 50-day SMA at $506.53.
  • Debt-to-equity ratio of 17.14 suggests high leverage, though the data appears inconsistent with standard metrics.
Risks
  • Overvaluation is confirmed by a PEG ratio of 10.06, which is significantly above the 1.0 threshold indicating fair value.
  • Technical indicators show bearish momentum with the MACD histogram at -$0.88 and price below the 50-day SMA.
  • The company's high exposure to equities (Investments: $685.67B) increases vulnerability during market downturns.

Agent debate

Before deciding, the team's AI agents debate: some argue for investing, others against, and then they discuss how much risk to take. This is a summary of what each one argued. Only arguments backed by the verified data are shown.

14 figures and sources from the debate that were not in the data were discarded.

  1. Bull researcher

    Argues for investing

    The bull researcher argues for investing in BRK-B based on strong fundamentals, technical indicators, and market sentiment, dismissing bear arguments as fear-based.

    • BRK-B's P/E ratio of 12.66 is low compared to the market, with ROE at 12.12% indicating strong, sustainable profitability.
    • Q2 2026 saw $172B in new investments and $4.21B in share buybacks, demonstrating opportunistic capital allocation.
    • Technical analysis shows price trading 1.0% above the lower Bollinger Band ($498.07), with RSI at 45.27 indicating a neutral-to-buying zone.

  2. Bear researcher

    Argues against investing

    The bear researcher argues BRK-B is overvalued with misleading data, citing a PEG ratio of 10.06 and inconsistent debt metrics.

    • The PEG ratio of 10.06 indicates 'highly overvalued relative to growth,' contradicting the bull's P/E-based valuation argument.
    • Debt-to-equity ratio of 17.14 is inconsistent with standard calculation (0.69x), suggesting data error or significant risk.
    • Insurance underwriting 'profit' of $15.51B is actually a cost (loss adjustment expense), not revenue, undermining the bull's growth narrative.

  3. Research manager

    Judges the debate

    PositionSell

    The research manager judges the debate and recommends a SELL based on verified data showing overvaluation and bearish technicals.

    • Report explicitly states PEG ratio of 10.06 indicates 'highly overvalued relative to growth,' contradicting the bull's valuation claims.
    • Report confirms loss adjustment expense ($15.51B) is a cost, not a profit, as the bull incorrectly claimed.
    • MACD histogram of -$0.88 indicates 'negative momentum acceleration,' contradicting the bull's claim of 'stabilizing' momentum.

  4. Trader

    Proposes the trade

    PositionSell

    The trader turns the research manager's recommendation into a SELL trade with specific exit parameters.

    • BRK-B is trading below the 50-day SMA ($506.53) with MACD histogram at -$0.88, confirming a short-term bearish bias.
    • Exit existing positions immediately as price approaches $506.53 with bearish momentum confirmed.
    • Set stop loss at $496.95 based on the market report's entry zone stop level.

  5. Risk: aggressive

    Take more risk

    The aggressive risk analyst argues for selling now to reset position at a lower cost basis, but this strategy was rejected.

    • Selling at $503.09 and buying back at $502-$503 would reduce cost basis by 0.6% and capture higher upside.
    • Current price ($503.09) is at the edge of the aggressive scalp entry zone ($502-$503).
    • The report confirms the price is near the Bollinger Lower Band ($498.07), supporting a near-term reversal.

  6. Risk: conservative

    Protect capital

    The conservative risk analyst argues for holding through the current consolidation phase, but this view was rejected.

    • Price is $10.38 above the 200-day SMA ($492.71), confirming a long-term bullish trend.
    • The current price ($503.09) is within the recommended risk-adjusted entry zone ($499-$500).
    • Market report states 'institutional accumulation' is occurring with volume above 3M.

  7. Risk: neutral

    Balance both

    The neutral risk analyst recommends tightening stops for existing positions but not selling, which was rejected.

    • The MACD histogram of -$0.88 indicates accelerating downside momentum but not yet extreme.
    • The report recommends tightening stops to $496.95 for existing positions.
    • New positions should wait for price to approach the Bollinger Lower Band ($498.07).

Team conclusion

Sell

The team concluded BRK-B is overvalued with a PEG ratio of 10.06, which the report explicitly states as 'highly overvalued relative to growth.' The bull's misrepresentation of loss adjustment expense as profit ($15.51B) was corrected by the bear and research manager, as the report confirms this is a cost. Technical indicators including MACD histogram at -$0.88 ('negative momentum acceleration') and price below 50-day SMA ($506.53) confirmed a short-term bearish bias. The conservative hold argument was rejected as it ignored the valuation risk and bearish technicals. The aggressive reset strategy was deemed unnecessary and risky due to transaction costs and misinterpretation of the report's 'small positions' recommendation. The neutral analyst's stop placement was insufficient for the immediate bearish signal. Therefore, the final rating is SELL.

Decided by the portfolio manager

Verified: 6 of 6 checks passedVerification report

Agent debate · 6/6

  • Conclusion matches the decision

    The conclusion states the team's rating: Sell.

  • Article figures

    All 23 figures in the article appear in the market data or the analyst reports.

  • Article sources

    The article cites no source, study or entity outside the analysed data.

  • Language

    The text is written 100% in the article's language, with no untranslated terms.

  • Every specialist

    7 of 7 specialists summarised and a 124-word conclusion.

  • Tone

    Balanced language, with no promised returns or promotional expressions.

Overview

Berkshire Hathaway Inc. (BRK-B) operates as a diversified financial services and insurance conglomerate with a market capitalization of $1.08T. The company's strategy focuses on long-term investments, insurance underwriting, and capital allocation through equity and credit investments. Recent data shows consistent revenue growth of 10% and a strong profit margin of 22.3%, supported by a net income of $85.77B over the trailing twelve months.

Technical picture

The current price of $503.09 is below the 50-day SMA at $506.53, confirming short-term bearish momentum. The MACD histogram stands at -$0.88, indicating negative momentum acceleration. The price remains above the 200-day SMA at $492.71, which supports the long-term bullish trend, but the immediate technical picture is bearish with the price trading below key moving averages.

Fundamentals

Berkshire Hathaway's fundamentals reveal a PEG ratio of 10.06, which is significantly above the 1.0 threshold indicating overvaluation. The company's debt-to-equity ratio of 17.14 suggests high leverage, though this metric appears inconsistent with standard financial calculations. The company maintains strong liquidity with a current ratio of 2.89 and a net debt of $87.99B, down from $128.6B in 2024. Berkshire's revenue has grown 10% year-over-year, with a profit margin of 22.3% reflecting robust earnings power despite market volatility.

News and sentiment

No significant company-specific news was identified in the past week. Macroeconomic data shows stable interest rates at 3.63% and flat CPI at 334.131, supporting Berkshire's insurance segment. Retail sentiment on StockTwits shows 16 bullish mentions (53.3% of total) with price target optimism, but the sample size is small (30 messages) with 36.7% unlabeled messages, reducing confidence in this sentiment. The overall sentiment score is 8.0/10 with low confidence.

Bull vs bear debate

The bull case emphasizes Berkshire's strong market position, diversified business model, and consistent revenue growth. The bear case focuses on the PEG ratio of 10.06 indicating overvaluation and the bearish technical momentum confirmed by MACD histogram of -$0.88. The bull argument overlooks the valuation risk and technical signals, while the bear argument is supported by multiple data points from the fundamental and technical analysis.

Verdict

Berkshire Hathaway Inc. (BRK-B) is rated SELL due to its highly overvalued status (PEG ratio 10.06) and bearish technical momentum (MACD histogram -$0.88). The current price of $503.09 is below the 50-day SMA at $506.53, confirming short-term bearish momentum. Traders should exit all existing long positions immediately and avoid new long positions.

Key metrics

Last close
$503.09
P/E (TTM)
12.66
Forward P/E
22.67
Price / book
0
Net margin
22.3%
Revenue growth
10%
ROE
12.1%
Debt / equity
17.14
Beta
0.6
52-week high
$537.74
52-week low
$464.01
Analyst mean target
$547.67

AI-generated informational content. Not financial advice or a personalised investment recommendation. Investing involves risk, including loss of capital.

Berkshire Hathaway Inc. (BRK-B) stock analysis: Overvalued with bearish momentum | AI Stock Research