Simulation Results
Inflation Adj:
Disclaimer: The simulations on this website are provided in good faith but should NOT be taken as investment advice. We are not liable for any errors or actions based on this information. The authors of the website are not affiliated with the portfolio creators, who are the sole owners of their intellectual property. The translation of asset allocations into ETFs is based on the interpretation of LazyPortfolioETF.com and may not exactly reflect the original intent of the portfolio creators. Content is for informational, educational, illustrative, and entertainment purposes only.

The Warren Buffett Berkshire Hathaway Portfolio can be implemented with 1 Asset (BRK.A - Berkshire Hathaway Inc Class A). This portfolio has a very high risk, meaning it can experience significant fluctuations in value. It is suitable for investors with a high risk tolerance who are seeking substantial returns and can withstand large drawdowns.

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Table of contents

Portfolio Returns as of Jun 30, 2026

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Capital Growth
Inflation Adj:
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Show Live Returns: July 2026
Chg (%) Return (%) Return (%) as of Jun 30, 2026
1 Day Time ET(*) Jul 2026 YTD
(6M)
1M 6M 1Y 5Y 10Y 30Y MAX
(~46Y)
Investment Return 1YOnly 1 Asset
Rebalance has no effect
0.00 1.91 -0.79 5.34 -0.79 2.75 12.34 13.19 11.24 18.80
US Inflation Adjusted Return -2.74 5.79 -2.74 -0.67 7.80 9.56 8.48 15.19
Returns over 1 year are annualized
(*) Eastern Time (ET - America/New York)
The live monthly return is calculated by assuming, for each asset, the weight defined by the base asset allocation.
US Inflation is updated to Jun 2026. Inflation (annualized) is 1Y: 3.44% , 5Y: 4.21% , 10Y: 3.31% , 30Y: 2.54%
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Portfolio Metrics as of Jun 30, 2026

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Advanced Metrics
1 April 1980 - 30 June 2026 (~46 years)
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Metrics as of Jun 30, 2026
YTD
(6M)
1M 3M 6M 1Y 3Y 5Y 10Y 20Y 30Y MAX
(~46Y)
Investment Return (%)
-0.79 5.34 4.28 -0.79 2.75 13.09 12.34 13.19 11.07 11.24 18.80
Growth of 1$ 0.99 1.05 1.04 0.99 1.03 1.45 1.79 3.45 8.17 24.39 2.9K
Infl. Adjusted Return (%)
-2.74 5.79 3.56 -2.74 -0.67 9.74 7.80 9.56 8.33 8.48 15.19
US Inflation (%) 2.01 -0.42 0.69 2.01 3.44 3.05 4.21 3.31 2.53 2.54 3.13
Returns / Inflation rates over 1 year are annualized.
DRAWDOWN
Inflation Adjusted:
Inflation Adjusted:
Current 1Y 3Y 5Y 10Y 20Y 30Y MAX
Deepest Drawdown Depth (%) -6.46 -7.69 -11.20 -23.15 -23.15 -44.49 -44.49 -44.49
Start to Recovery (# months)
14* 7* 14* 16 16 61 61 61
Start (yyyy mm) 2025 12 2025 05 2022 04 2022 04 2008 01 2008 01 2008 01
Start to Bottom (# months) 6 13 6 6 14 14 14
Bottom (yyyy mm) 2026 05 2026 05 2022 09 2022 09 2009 02 2009 02 2009 02
Bottom to End (# months) 1 1 10 10 47 47 47
End (yyyy mm) - - 2023 07 2023 07 2013 01 2013 01 2013 01
Longest Drawdown Depth (%)
same

same

same

same

same
-43.81 -43.81
Start to Recovery (# months)
65 65
Start (yyyy mm) 2025 12 2025 05 2022 04 2022 04 2008 01 1998 07 1998 07
Start to Bottom (# months) 6 13 6 6 14 20 20
Bottom (yyyy mm) 2026 05 2026 05 2022 09 2022 09 2009 02 2000 02 2000 02
Bottom to End (# months) 1 1 10 10 47 45 45
End (yyyy mm) - - 2023 07 2023 07 2013 01 2003 11 2003 11
Longest negative period (# months)
11 21 21 34 61 64 64
Start (yyyy mm) 2025 07 2024 09 2024 09 2017 09 2007 11 1998 07 1998 07
End (yyyy mm) 2026 05 2026 05 2026 05 2020 06 2012 11 2003 10 2003 10
Annualized Return (%) -2.68 -0.35 -0.35 -0.54 -0.09 -0.12 -0.12
Drawdowns / Negative periods marked with * are in progress
Adjusting for units held makes the drawdown reflect real performance, just like in the no-cash-flow case.
Deepest Drawdown Depth (%) -9.90 -10.16 -14.83 -25.43 -25.43 -44.82 -46.19 -46.19
Start to Recovery (# months)
14* 7* 14* 22 22 63 68 68
Start (yyyy mm) 2025 12 2025 05 2022 04 2022 04 2008 01 1998 07 1998 07
Start to Bottom (# months) 6 13 6 6 14 20 20
Bottom (yyyy mm) 2026 05 2026 05 2022 09 2022 09 2009 02 2000 02 2000 02
Bottom to End (# months) 1 1 16 16 49 48 48
End (yyyy mm) - - 2024 01 2024 01 2013 03 2004 02 2004 02
Longest Drawdown Depth (%)
same

same

same
-13.53
same

same

same
Start to Recovery (# months)
23
Start (yyyy mm) 2025 12 2025 05 2022 04 2018 02 2008 01 1998 07 1998 07
Start to Bottom (# months) 6 13 6 5 14 20 20
Bottom (yyyy mm) 2026 05 2026 05 2022 09 2018 06 2009 02 2000 02 2000 02
Bottom to End (# months) 1 1 16 18 49 48 48
End (yyyy mm) - - 2024 01 2019 12 2013 03 2004 02 2004 02
Longest negative period (# months)
12* 22* 22* 40 67 159 159
Start (yyyy mm) 2025 07 2024 09 2024 09 2017 03 2006 11 1998 07 1998 07
End (yyyy mm) 2026 06 2026 06 2026 06 2020 06 2012 05 2011 09 2011 09
Annualized Return (%) -0.67 -0.62 -0.62 -0.39 -0.10 -0.15 -0.15
Drawdowns / Negative periods marked with * are in progress
Adjusting for units held makes the drawdown reflect real performance, just like in the no-cash-flow case.
RISK INDICATORS - MISC
1Y 3Y 5Y 10Y 20Y 30Y MAX
Standard Deviation (%) 14.46 16.09 18.59 18.02 17.62 19.20 21.66
Sharpe Ratio -0.07 0.53 0.48 0.61 0.54 0.47 0.69
Sortino Ratio -0.11 0.77 0.68 0.86 0.78 0.69 1.05
Ulcer Index 4.33 5.50 8.07 7.54 11.87 12.24 11.27
Ratio: Return / Standard Deviation 0.19 0.81 0.66 0.73 0.63 0.59 0.87
Ratio: Return / Deepest Drawdown 0.36 1.17 0.53 0.57 0.25 0.25 0.42
Zero or Positive Months (%)
33.33 50.00 53.33 55.00 57.08 57.77 60.18
Zero or Positive Months 4 18 32 66 137 208 334
Negative Months 8 18 28 54 103 152 221
# Rebalances 0 0 0 0 0 0 0
LONG TERM RETURNS
Inflation Adjusted:
Inflation Adjusted:
1Y 3Y 5Y 10Y 20Y 30Y MAX
Best 10 Years Return (%) - Annualized 13.19 15.81 15.81 38.44
Worst 10 Years Return (%) - Annualized 7.42 1.01 1.01
Best 10 Years Return (%) - Annualized 9.56 13.19 13.19 32.04
Worst 10 Years Return (%) - Annualized 5.50 -1.54 -1.54
TIMEFRAMES
Inflation Adjusted:
Inflation Adjusted:
1M 3M 6M 1Y 3Y 5Y 10Y 20Y 30Y MAX
··· As of Jun 2026 - Over the previous 30Y
Best Rolling Return (%) - Annualized 85.64 30.93 24.03 15.81 11.91 11.24
Worst Rolling Return (%) - Annualized -43.86 -6.49 -3.62 1.01 6.62
Positive Periods (%) 74.7 91.3 97.6 100.0 100.0 100.0
Best Rolling Return (%) - Annualized 83.11 28.43 18.84 13.19 9.13 8.48
Worst Rolling Return (%) - Annualized -43.86 -7.56 -6.10 -1.54 4.33
Positive Periods (%) 69.6 87.6 90.6 98.3 100.0 100.0
95% VaR - Value at Risk (%) - Cumulative
8.07 12.66 16.07 18.61 4.04 0.00 0.00 0.00
95% CVaR - Conditional Value at Risk (%) 10.37 16.64 21.71 27.66 9.84 2.98 0.00 0.00
99% VaR - Value at Risk (%) - Cumulative
11.85 19.20 25.32 35.01 14.20 7.07 0.00 0.00
99% CVaR - Conditional Value at Risk (%) 14.25 23.36 31.21 40.99 16.59 12.22 0.00 0.00
Short term VaRs: analytical | 1+ year VaRs: historical data
Safe Withdrawal Rate (%) 74.88 25.43 15.52 8.84 5.38 9.88
Perpetual Withdrawal Rate (%) --- --- --- --- 3.08 9.02
% based on initial capital, inflation-adj. monthly withdrawals afterwards | Credits: BestRetirementPortfolio.com
··· All available data (Apr 1980 - Jun 2026)
Best Rolling Return (%) - Annualized 125.45 64.39 52.83 38.44 30.95 22.75
Worst Rolling Return (%) - Annualized -43.86 -6.49 -3.62 1.01 6.62 10.72
Positive Periods (%) 80.3 94.6 98.5 100.0 100.0 100.0
Best Rolling Return (%) - Annualized 119.39 59.02 48.17 32.04 26.08 18.73
Worst Rolling Return (%) - Annualized -43.86 -7.56 -6.10 -1.54 4.33 7.97
Positive Periods (%) 76.6 91.9 94.3 99.0 100.0 100.0
95% VaR - Value at Risk (%) - Cumulative
8.65 12.91 15.39 14.28 0.87 0.00 0.00 0.00 0.00
95% CVaR - Conditional Value at Risk (%) 11.25 17.41 21.75 25.06 7.11 0.00 0.00 0.00 0.00
99% VaR - Value at Risk (%) - Cumulative
12.91 20.29 25.83 31.97 11.37 5.32 0.00 0.00 0.00
99% CVaR - Conditional Value at Risk (%) 15.63 24.99 32.47 37.79 14.81 9.38 0.00 0.00 0.00
Short term VaRs: analytical | 1+ year VaRs: historical data
Safe Withdrawal Rate (%) 74.88 25.43 15.52 8.84 5.38 8.24
Perpetual Withdrawal Rate (%) --- --- --- --- 3.08 7.42
% based on initial capital, inflation-adj. monthly withdrawals afterwards | Credits: BestRetirementPortfolio.com
  • Annualized Portfolio Return: the annualized geometric mean return of the portfolio. When cashflows are involved, it is calculated using the Money-Weighted Rate of Return (MWRR), based on the Modified Dietz formula.
  • Deepest/Longest Drawdown: a drawdown refers to the decline in value from a relative peak value to a relative trough. The deepest (or maximum) drawdown is the maximum observed loss from a peak to a trough of a portfolio before a new peak is attained. The longest drawdown is the period observed from a peak to the subsequent peak with the greatest duration. When cashflows are involved, portfolio values are normalized by the invested capital (i.e. owned quotes) at each time step: this isolates the effect of market performance from capital contributions, avoiding misleading drawdowns caused by large inflows that artificially lift portfolio value and, as a result, the drawdowns match the ones without cash flows.
  • Longest negative period: it's the maximum period for which an overall negative return has been observed.
  • Standard Deviation: it's a measure of the dispersion of returns around the mean.
  • Sharpe Ratio: it's a measure of risk-adjusted performance of the portfolio. It's calculated by dividing the excess return of the portfolio over the risk-free rate by the portfolio standard deviation. The risk-free rate here considered is based on the portfolio's composition currency:
    • USD → BIL (SPDR Bloomberg 1-3 Month T-Bill ETF)
    • CAD → CBIL.TO (CI First Asset Government 1-3 Month T-Bill ETF)
    • EUR → XEON.DE (Xtrackers II EUR Overnight Rate Swap ETF)
    • GBP → XSTR.L (Xtrackers II GBP Overnight Rate Swap ETF)
    • any other currency → defaults to BIL (USD)
  • Sortino Ratio: another measure of risk-adjusted performance of the portfolio. It's a modification of the Sharpe Ratio (same formula but the denominator is the portfolio downside standard deviation).
  • Ulcer Index: it's a measure of downside risk that quantifies the depth and duration of drawdowns in an investment portfolio.
  • Best/Worst 10Y returns: the best and the worst 10-year return over a time frame.
  • Rolling Returns: N-year returns over a time frame, calculated over all the available data source (best, worst, % of positive returns). Each rolling period, longer than the longest negative period, yielded a non-negative minimum return.
  • Value at Risk (VaR): it's an evaluation of a cumulative worst-case loss (in absolute value), associated with a probability (95%-99%) and a time horizon. For short term, it's calculated based on the expected return and standard deviation, assuming a normal distribution of monthly returns. For long term is retrieved by the historical rolling return data.
  • Conditional Value at Risk (CVaR): it represents the average expected loss if that worst-case threshold (95%-99%) is ever crossed.
  • Safe Withdrawal Rate (SWR): it's the percentage of the initial portfolio balance that can be withdrawn at the beginning of each month with inflation adjustment, without the portfolio running out of money in any case (money amount withdrawal).
    For instance: Your initial invested capital is 100.000$; withdrawal rate (annualized) is 4%. This means that, in the first month, you will withdraw 100.000 * 4% * 1/12 = 333.33$. The second month, you’ll withdraw 333.33$ plus the inflation monthly rate. You’ll continue adjusting your withdraw monthly for inflation.
  • Perpetual Withdrawal Rate (PWR): it's the percentage of the initial portfolio balance that can be withdrawn at the beginning of each month with inflation adjustment, preserving the original invested capital, adjusted for inflation too.
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Drawdowns

A drawdown refers to the decline in value from a relative peak value to a relative trough. A maximum drawdown is the maximum observed loss from a peak to a trough of a portfolio before a new peak is attained.

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Drawdown periods
Inflation Adj:
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Rolling Return Analysis

A rolling return is a measure of investment performance that calculates the return of an investment over a set period of time, with the starting date rolling forward. This approach can provide a more accurate representation of the investment's historical performance and helps investors to evaluate the investment's consistency over time.

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Annualized Rolling Returns — Over Time & Distribution

Holding Periods and Returns

Holding periods are based on rolling periods: each rolling window represents the return an investor would have achieved by holding the investment for a fixed period (e.g., 10, 20, or 30 years) starting from different dates.

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Annualized Rolling Returns
Inflation Adj:
Percentiles: Changes pending. Click 'Update' to refresh

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Time to Target

What it shows: Months to reach your target capital from each historical entry point, accounting for your initial investment and periodic contributions.

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Time to reach your Target Capital

Monthly Returns and Seasonality

This section provides a visual/tabular representation of the performance variability in the Warren Buffett Berkshire Hathaway Portfolio over time. It illustrates the distribution of monthly returns, showcasing the range and frequency of positive and negative returns.

WARREN BUFFETT BERKSHIRE HATHAWAY PORTFOLIO
Monthly Returns Distribution

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Monthly Seasonality Analysis
46 full years are available for analysis

Portfolio efficiency

Compare Warren Buffett Berkshire Hathaway Portfolio performance and efficiency against top portfolios to identify strengths and areas for improvement.


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Rank

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Neg.Period
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Rank

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