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Dobby
Performance
Return for Risk
Dividends
Drawdowns
Volatility
Diversification

Asset Allocation


TSLA 40.00%VGT 40.00%MRVL 20.00%EquityEquity

S&P 500 Index

Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in Dobby, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends. The portfolio is rebalanced Every 3 months.


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The earliest data available for this chart is Jun 29, 2010, corresponding to the inception date of TSLA

Returns By Period

As of Apr 7, 2026, the Dobby returned -5.64% Year-To-Date and 33.45% of annualized return in the last 10 years.


1D1MYTD6M1Y3Y*5Y*10Y*
Benchmark
S&P 500 Index
0.44%-1.90%-3.41%-1.91%30.31%17.22%10.14%12.44%
Portfolio
Dobby
-0.11%-0.16%-5.64%-7.16%63.31%31.08%17.43%33.45%
TSLA
Tesla, Inc.
-2.15%-11.07%-21.55%-22.16%47.36%24.00%9.55%35.69%
MRVL
Marvell Technology Group Ltd.
2.24%22.26%28.96%23.33%122.29%41.21%17.28%27.39%
VGT
Vanguard Information Technology ETF
0.50%-0.29%-4.88%-5.84%50.29%24.26%14.69%21.90%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Jun 30, 2010, Dobby's average daily return is +0.13%, while the average monthly return is +2.74%. At this rate, your investment would double in approximately 2.1 years.

Historically, 59% of months were positive and 41% were negative. The best month was May 2013 with a return of +40.7%, while the worst month was Dec 2022 at -19.4%. The longest winning streak lasted 8 consecutive months, and the longest losing streak was 4 months.

On a daily basis, Dobby closed higher 54% of trading days. The best single day was Apr 9, 2025 with a return of +18.8%, while the worst single day was Mar 16, 2020 at -16.2%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026-3.43%-3.07%-0.46%1.28%-5.64%
20250.19%-15.89%-14.83%3.03%14.24%4.66%1.29%-0.97%22.32%5.90%-5.29%0.81%9.67%
2024-6.50%6.03%-3.94%-1.98%2.78%8.05%5.48%-0.50%8.90%0.17%20.75%11.71%60.08%
202323.53%9.64%2.44%-10.37%22.01%13.44%3.83%-4.47%-5.26%-11.15%16.49%5.01%75.80%
2022-11.35%-5.42%11.61%-16.19%-5.33%-13.58%23.90%-8.45%-7.67%-4.24%0.60%-19.44%-47.86%
20216.38%-7.05%0.22%3.03%-4.24%10.55%2.56%4.43%-0.38%23.44%3.10%1.62%49.15%

Benchmark Metrics

Dobby has an annualized alpha of 16.41%, beta of 1.39, and R² of 0.49 versus S&P 500 Index. Calculated based on daily prices since June 30, 2010.

  • This portfolio captured 175.46% of S&P 500 Index gains but only 90.99% of its losses — a favorable profile for investors.
  • R² of 0.49 means the benchmark explains less than half of this portfolio's behavior — treat beta with caution or consider switching to a more representative benchmark.

Alpha
16.41%
Beta
1.39
0.49
Upside Capture
175.46%
Downside Capture
90.99%

Expense Ratio

Dobby has an expense ratio of 0.04%, which is considered low. Below, you can find the expense ratios of the portfolio's funds side by side and easily compare their relative costs.


Return for Risk

Risk / Return Rank

Dobby ranks 46 for risk / return — on par with similar portfolios. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.


Dobby Risk / Return Rank: 4646
Overall Rank
Dobby Sharpe Ratio Rank: 5050
Sharpe Ratio Rank
Dobby Sortino Ratio Rank: 5252
Sortino Ratio Rank
Dobby Omega Ratio Rank: 4343
Omega Ratio Rank
Dobby Calmar Ratio Rank: 5757
Calmar Ratio Rank
Dobby Martin Ratio Rank: 2929
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics


PortfolioBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

1.69

1.84

-0.15

Sortino ratio

Return per unit of downside risk

2.51

2.97

-0.46

Omega ratio

Gain probability vs. loss probability

1.31

1.40

-0.09

Calmar ratio

Return relative to maximum drawdown

2.28

1.82

+0.45

Martin ratio

Return relative to average drawdown

6.28

7.76

-1.48


How much return does each position deliver for the risk it carries? Higher values mean better reward for the risk taken.

Risk / Return RankSharpe ratioSortino ratioOmega ratioCalmar ratioMartin ratio
TSLA
Tesla, Inc.
640.881.561.190.892.18
MRVL
Marvell Technology Group Ltd.
841.982.611.342.806.28
VGT
Vanguard Information Technology ETF
752.002.951.391.865.93

Sharpe Ratio

The Sharpe ratio helps investors understand how much return they're getting for the level of risk taken. A higher Sharpe ratio indicates better risk-adjusted performance, meaning more reward for each unit of risk.

Dobby Sharpe ratios as of Apr 7, 2026 (values are recalculated daily):

  • 1-Year: 1.69
  • 5-Year: 0.46
  • 10-Year: 0.91
  • All Time: 0.93

These values reflect how efficiently the investment has delivered returns relative to its volatility over different time periods. All figures are annualized and based on daily total returns (including price changes and dividends).

Compared to the broad market, where average Sharpe ratios range from 1.63 to 2.54, this portfolio's current Sharpe ratio falls between the 25th and 75th percentiles. This indicates that its risk-adjusted performance is in line with the majority of portfolios, suggesting a balanced approach to risk and return—likely suitable for a wide range of investors.

The chart below shows the rolling Sharpe ratio of Dobby compared to the selected benchmark. This view highlights how the investment's risk-adjusted performance has changed over time.


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Dividends

Dividend yield

Dobby provided a 0.21% dividend yield over the last twelve months.


TTM20252024202320222021202020192018201720162015
Portfolio0.21%0.22%0.28%0.34%0.49%0.30%0.43%0.63%0.81%0.62%0.87%1.06%
TSLA
Tesla, Inc.
0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
MRVL
Marvell Technology Group Ltd.
0.22%0.28%0.22%0.40%0.65%0.21%0.50%0.90%1.48%1.12%1.73%2.72%
VGT
Vanguard Information Technology ETF
0.43%0.40%0.60%0.65%0.91%0.64%0.82%1.11%1.29%0.99%1.31%1.28%

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Dobby. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Dobby was 54.06%, occurring on Jan 5, 2023. Recovery took 375 trading sessions.

The current Dobby drawdown is 10.24%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-54.06%Jan 4, 2022253Jan 5, 2023375Jul 5, 2024628
-47.54%Feb 20, 202020Mar 18, 202053Jun 3, 202073
-44.81%Dec 17, 202476Apr 8, 2025124Oct 6, 2025200
-31.25%Jul 21, 2015142Feb 10, 2016222Dec 27, 2016364
-27.89%Nov 26, 2010186Aug 22, 2011123Feb 16, 2012309

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Diversification

Diversification Metrics


Number of Effective Assets

The portfolio contains 3 assets, with an effective number of assets of 2.78, reflecting the diversification based on asset allocation. This number of effective assets suggests a highly concentrated portfolio, where a few assets dominate the allocation, potentially increasing the portfolio's risk due to lack of diversification.

Asset Correlations Table

The table below displays the correlation coefficients between the individual components of the portfolio, the entire portfolio, and the chosen benchmark.

BenchmarkTSLAMRVLVGTPortfolio
Benchmark1.000.460.580.890.68
TSLA0.461.000.340.480.89
MRVL0.580.341.000.650.65
VGT0.890.480.651.000.74
Portfolio0.680.890.650.741.00
The correlation results are calculated based on daily price changes starting from Jun 30, 2010