PDEX vs. BRK-B
PDEX (Pro-Dex, Inc.) and BRK-B (Berkshire Hathaway Inc.) are both stocks. PDEX operates in Medical Instruments & Supplies (Healthcare), while BRK-B operates in Insurance - Diversified (Financial Services). Over the past 10 years, PDEX returned 32.03%/yr vs 12.91%/yr for BRK-B. At a 0.10 correlation, their price movements are largely independent.
Performance
PDEX vs. BRK-B - Performance Comparison
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Returns By Period
In the year-to-date period, PDEX achieves a 69.36% return, which is significantly higher than BRK-B's -5.43% return. Over the past 10 years, PDEX has outperformed BRK-B with an annualized return of 32.03%, while BRK-B has yielded a comparatively lower 12.91% annualized return.
PDEX
- 1D
- -2.37%
- 1M
- 27.21%
- YTD
- 69.36%
- 6M
- 66.42%
- 1Y
- 52.32%
- 3Y*
- 50.81%
- 5Y*
- 14.14%
- 10Y*
- 32.03%
BRK-B
- 1D
- 0.82%
- 1M
- 1.46%
- YTD
- -5.43%
- 6M
- -5.61%
- 1Y
- -4.51%
- 3Y*
- 13.00%
- 5Y*
- 10.20%
- 10Y*
- 12.91%
PDEX vs. BRK-B - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PDEX Pro-Dex, Inc. | 69.36% | -17.69% | 166.84% | 10.19% | -31.50% | -25.06% | 76.47% | 45.28% | 77.65% | 44.68% |
BRK-B Berkshire Hathaway Inc. | -5.43% | 10.89% | 27.09% | 15.46% | 3.31% | 28.95% | 2.37% | 10.93% | 3.01% | 21.62% |
Correlation
The correlation between PDEX and BRK-B is 0.09, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.09 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.11 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.16 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.15 |
Correlation (All Time) Calculated using the full available price history since May 10, 1996 | 0.10 |
Fundamentals
PDEX:
$213.08M
BRK-B:
$1.03T
PDEX:
$3.62
BRK-B:
$33.62
PDEX:
18.01
BRK-B:
14.14
PDEX:
0.21
BRK-B:
0.55
PDEX:
2.90
BRK-B:
2.73
PDEX:
4.71
BRK-B:
1.41
PDEX:
$74.64M
BRK-B:
$375.39B
PDEX:
$20.73M
BRK-B:
$94.36B
PDEX:
$16.82M
BRK-B:
$71.92B
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Return for Risk
PDEX vs. BRK-B — Risk / Return Rank
PDEX
BRK-B
PDEX vs. BRK-B - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Pro-Dex, Inc. (PDEX) and Berkshire Hathaway Inc. (BRK-B). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| PDEX | BRK-B | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.13 | ||
| Sortino ratioReturn per unit of downside risk | +1.72 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 0.96 | +0.23 |
| Calmar ratioReturn relative to maximum drawdown | 0.95 | -0.48 | +1.43 |
| Martin ratioReturn relative to average drawdown | 2.19 | -1.02 | +3.21 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| PDEX | BRK-B | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | -0.32 | +1.13 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.24 | 0.60 | -0.36 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.55 | 0.67 | -0.12 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.10 | 0.48 | -0.38 |
Drawdowns
PDEX vs. BRK-B - Drawdown Comparison
The maximum PDEX drawdown since its inception was -95.50%, which is greater than BRK-B's maximum drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for PDEX and BRK-B.
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Drawdown Indicators
| PDEX | BRK-B | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -95.50% | -53.86% | -41.64% |
Max Drawdown (1Y)Largest decline over 1 year | -55.32% | -9.42% | -45.90% |
Max Drawdown (3Y)Largest decline over 3 years | -65.36% | -14.95% | -50.41% |
Max Drawdown (5Y)Largest decline over 5 years | -65.36% | -26.58% | -38.78% |
Max Drawdown (10Y)Largest decline over 10 years | -69.11% | -29.57% | -39.54% |
Current DrawdownCurrent decline from peak | -5.55% | -11.94% | +6.39% |
Average DrawdownAverage peak-to-trough decline | -63.74% | -11.07% | -52.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 23.94% | 4.57% | +19.37% |
Volatility
PDEX vs. BRK-B - Volatility Comparison
Pro-Dex, Inc. (PDEX) has a higher volatility of 14.69% compared to Berkshire Hathaway Inc. (BRK-B) at 3.75%. This indicates that PDEX's price experiences larger fluctuations and is considered to be riskier than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDEX | BRK-B | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 14.69% | 3.75% | +10.94% |
Volatility (6M)Calculated over the trailing 6-month period | 34.31% | 10.68% | +23.63% |
Volatility (1Y)Calculated over the trailing 1-year period | 65.29% | 14.33% | +50.96% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 58.65% | 17.11% | +41.54% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 58.36% | 19.43% | +38.93% |
Dividends
PDEX vs. BRK-B - Dividend Comparison
Neither PDEX nor BRK-B has paid dividends to shareholders.
Financials
PDEX vs. BRK-B - Financials Comparison
This section allows you to compare key financial metrics between Pro-Dex, Inc. and Berkshire Hathaway Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
PDEX vs. BRK-B - Profitability Comparison
PDEX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Pro-Dex, Inc. reported a gross profit of 6.13M and revenue of 19.95M. Therefore, the gross margin over that period was 30.7%.
BRK-B - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Berkshire Hathaway Inc. reported a gross profit of 26.98B and revenue of 93.68B. Therefore, the gross margin over that period was 28.8%.
PDEX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Pro-Dex, Inc. reported an operating income of 3.09M and revenue of 19.95M, resulting in an operating margin of 15.5%.
BRK-B - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Berkshire Hathaway Inc. reported an operating income of 15.05B and revenue of 93.68B, resulting in an operating margin of 16.1%.
PDEX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Pro-Dex, Inc. reported a net income of 3.94M and revenue of 19.95M, resulting in a net margin of 19.7%.
BRK-B - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Berkshire Hathaway Inc. reported a net income of 10.18B and revenue of 93.68B, resulting in a net margin of 10.9%.
Frequently Asked Questions
PDEX and BRK-B have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDEX has higher volatility (14.69%) compared to BRK-B (3.75%). In terms of maximum drawdown, PDEX dropped -95.50% vs BRK-B's -53.86%.
PDEX currently has the higher Sharpe Ratio (0.81 vs -0.32), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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