PDEX vs. MAIN
PDEX (Pro-Dex, Inc.) and MAIN (Main Street Capital Corporation) are both stocks. PDEX operates in Medical Instruments & Supplies (Healthcare), while MAIN operates in Asset Management (Financial Services). Over the past 10 years, PDEX returned 29.56%/yr vs 13.07%/yr for MAIN. At a 0.09 correlation, their price movements are largely independent.
Performance
PDEX vs. MAIN - Performance Comparison
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Returns By Period
In the year-to-date period, PDEX achieves a 63.51% return, which is significantly higher than MAIN's -11.45% return. Over the past 10 years, PDEX has outperformed MAIN with an annualized return of 29.56%, while MAIN has yielded a comparatively lower 13.07% annualized return.
PDEX
- 1D
- 1.52%
- 1M
- 11.36%
- YTD
- 63.51%
- 6M
- 44.43%
- 1Y
- 50.67%
- 3Y*
- 49.71%
- 5Y*
- 14.31%
- 10Y*
- 29.56%
MAIN
- 1D
- 0.39%
- 1M
- -1.74%
- YTD
- -11.45%
- 6M
- -13.72%
- 1Y
- -3.65%
- 3Y*
- 18.20%
- 5Y*
- 12.64%
- 10Y*
- 13.07%
PDEX vs. MAIN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PDEX Pro-Dex, Inc. | 63.51% | -17.69% | 166.84% | 10.19% | -31.50% | -25.06% | 76.47% | 45.28% | 77.65% | 44.68% |
MAIN Main Street Capital Corporation | -11.45% | 10.74% | 47.30% | 28.22% | -11.37% | 48.31% | -19.54% | 36.88% | -8.27% | 16.62% |
Correlation
The correlation between PDEX and MAIN is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.11 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.11 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.13 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.14 |
Correlation (All Time) Calculated using the full available price history since Oct 9, 2007 | 0.09 |
Fundamentals
PDEX:
$205.73M
MAIN:
$4.69B
PDEX:
$3.62
MAIN:
$5.22
PDEX:
17.38
MAIN:
9.92
PDEX:
0.20
MAIN:
1.13
PDEX:
2.80
MAIN:
6.59
PDEX:
4.55
MAIN:
1.52
PDEX:
$74.64M
MAIN:
$704.17M
PDEX:
$20.73M
MAIN:
$499.08M
PDEX:
$16.82M
MAIN:
$396.90M
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Return for Risk
PDEX vs. MAIN — Risk / Return Rank
PDEX
MAIN
PDEX vs. MAIN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Pro-Dex, Inc. (PDEX) and Main Street Capital Corporation (MAIN). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| PDEX | MAIN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.93 | ||
| Sortino ratioReturn per unit of downside risk | +1.39 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.00 | +0.19 |
| Calmar ratioReturn relative to maximum drawdown | 0.92 | -0.16 | +1.08 |
| Martin ratioReturn relative to average drawdown | 2.12 | -0.33 | +2.45 |
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Drawdowns
PDEX vs. MAIN - Drawdown Comparison
The maximum PDEX drawdown since its inception was -95.50%, which is greater than MAIN's maximum drawdown of -64.53%. Use the drawdown chart below to compare losses from any high point for PDEX and MAIN.
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Drawdown Indicators
| PDEX | MAIN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -95.50% | -64.53% | -30.97% |
Max Drawdown (1Y)Largest decline over 1 year | -55.32% | -22.43% | -32.89% |
Max Drawdown (3Y)Largest decline over 3 years | -65.36% | -22.43% | -42.93% |
Max Drawdown (5Y)Largest decline over 5 years | -65.36% | -27.06% | -38.30% |
Max Drawdown (10Y)Largest decline over 10 years | -69.11% | -64.53% | -4.58% |
Current DrawdownCurrent decline from peak | -8.81% | -18.72% | +9.91% |
Average DrawdownAverage peak-to-trough decline | -63.69% | -7.30% | -56.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 23.94% | 11.12% | +12.82% |
Volatility
PDEX vs. MAIN - Volatility Comparison
Pro-Dex, Inc. (PDEX) has a higher volatility of 11.82% compared to Main Street Capital Corporation (MAIN) at 6.93%. This indicates that PDEX's price experiences larger fluctuations and is considered to be riskier than MAIN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDEX | MAIN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.82% | 6.93% | +4.89% |
Volatility (6M)Calculated over the trailing 6-month period | 34.47% | 20.12% | +14.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 64.68% | 24.85% | +39.83% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 58.71% | 21.58% | +37.13% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 58.29% | 27.30% | +30.99% |
Dividends
PDEX vs. MAIN - Dividend Comparison
PDEX has not paid dividends to shareholders, while MAIN's dividend yield for the trailing twelve months is around 8.29%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MAIN Main Street Capital Corporation | 8.29% | 7.00% | 7.02% | 8.55% | 7.97% | 5.74% | 6.99% | 6.76% | 8.43% | 7.49% | 7.42% | 9.15% |
PDEX Pro-Dex, 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% |
Financials
PDEX vs. MAIN - Financials Comparison
This section allows you to compare key financial metrics between Pro-Dex, Inc. and Main Street Capital Corporation. 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. MAIN - 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%.
MAIN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported a gross profit of 0.00 and revenue of 140.11M. Therefore, the gross margin over that period was 0.0%.
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%.
MAIN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported an operating income of 0.00 and revenue of 140.11M, resulting in an operating margin of 0.0%.
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%.
MAIN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Main Street Capital Corporation reported a net income of 90.82M and revenue of 140.11M, resulting in a net margin of 64.8%.
Frequently Asked Questions
PDEX and MAIN have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDEX has higher volatility (11.82%) compared to MAIN (6.93%). In terms of maximum drawdown, PDEX dropped -95.50% vs MAIN's -64.53%.
PDEX currently has the higher Sharpe Ratio (0.79 vs -0.15), 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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