ESP vs. PBYI
ESP (Espey Mfg. & Electronics Corp.) and PBYI (Puma Biotechnology, Inc.) are both stocks. ESP operates in Electrical Equipment & Parts (Industrials), while PBYI operates in Biotechnology (Healthcare). Over the past 10 years, ESP returned 11.71%/yr vs -13.12%/yr for PBYI. At a 0.08 correlation, their price movements are largely independent.
Performance
ESP vs. PBYI - Performance Comparison
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Returns By Period
In the year-to-date period, ESP achieves a 19.36% return, which is significantly lower than PBYI's 35.80% return. Over the past 10 years, ESP has outperformed PBYI with an annualized return of 11.71%, while PBYI has yielded a comparatively lower -13.12% annualized return.
ESP
- 1D
- -6.93%
- 1M
- -5.49%
- 6M
- 18.09%
- YTD
- 19.36%
- 1Y
- 17.20%
- 3Y*
- 55.33%
- 5Y*
- 32.73%
- 10Y*
- 11.71%
PBYI
- 1D
- 1.00%
- 1M
- 10.23%
- 6M
- 28.66%
- YTD
- 35.80%
- 1Y
- 138.35%
- 3Y*
- 34.38%
- 5Y*
- -0.27%
- 10Y*
- -13.12%
ESP vs. PBYI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ESP Espey Mfg. & Electronics Corp. | 19.36% | 63.34% | 66.83% | 35.47% | -0.07% | -24.87% | -7.86% | -9.61% | 11.35% | -3.99% |
PBYI Puma Biotechnology, Inc. | 35.80% | 95.08% | -29.56% | 2.36% | 39.14% | -70.37% | 17.26% | -57.00% | -79.41% | 221.99% |
Correlation
The correlation between ESP and PBYI 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 | 0.09 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.09 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.09 |
Correlation (All Time) Calculated using the full available price history since Apr 24, 2012 | 0.08 |
Fundamentals
ESP:
$167.08M
PBYI:
$411.27M
ESP:
$3.77
PBYI:
$0.48
ESP:
14.80
PBYI:
16.99
ESP:
0.21
PBYI:
0.02
ESP:
3.77
PBYI:
1.82
ESP:
2.85
PBYI:
3.20
ESP:
$42.25M
PBYI:
$227.21M
ESP:
$15.43M
PBYI:
$169.14M
ESP:
$11.61M
PBYI:
$46.97M
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Return for Risk
ESP vs. PBYI — Risk / Return Rank
ESP
PBYI
ESP vs. PBYI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Espey Mfg. & Electronics Corp. (ESP) and Puma Biotechnology, Inc. (PBYI). 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.
| ESP | PBYI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.68 | ||
| Sortino ratioReturn per unit of downside risk | -1.76 | ||
| Omega ratioGain probability vs. loss probability | 1.10 | 1.41 | -0.31 |
| Calmar ratioReturn relative to maximum drawdown | 0.59 | 5.40 | -4.80 |
| Martin ratioReturn relative to average drawdown | 1.14 | 12.68 | -11.53 |
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Drawdowns
ESP vs. PBYI - Drawdown Comparison
The maximum ESP drawdown since its inception was -54.43%, smaller than the maximum PBYI drawdown of -99.40%. Use the drawdown chart below to compare losses from any high point for ESP and PBYI.
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Drawdown Indicators
| ESP | PBYI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.43% | -99.40% | +44.97% |
Max Drawdown (1Y)Largest decline over 1 year | -29.09% | -25.78% | -3.31% |
Max Drawdown (3Y)Largest decline over 3 years | -29.09% | -69.59% | +40.50% |
Max Drawdown (5Y)Largest decline over 5 years | -33.59% | -80.10% | +46.51% |
Max Drawdown (10Y)Largest decline over 10 years | -54.43% | -98.76% | +44.33% |
Current DrawdownCurrent decline from peak | -22.45% | -97.06% | +74.61% |
Average DrawdownAverage peak-to-trough decline | -15.01% | -74.57% | +59.56% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 15.07% | 10.96% | +4.11% |
Volatility
ESP vs. PBYI - Volatility Comparison
Espey Mfg. & Electronics Corp. (ESP) has a higher volatility of 17.49% compared to Puma Biotechnology, Inc. (PBYI) at 12.48%. This indicates that ESP's price experiences larger fluctuations and is considered to be riskier than PBYI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ESP | PBYI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 17.49% | 12.48% | +5.01% |
Volatility (6M)Calculated over the trailing 6-month period | 40.06% | 42.16% | -2.10% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.91% | 69.58% | -16.67% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 43.39% | 75.80% | -32.41% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 38.35% | 80.45% | -42.10% |
Dividends
ESP vs. PBYI - Dividend Comparison
ESP's dividend yield for the trailing twelve months is around 3.14%, while PBYI has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ESP Espey Mfg. & Electronics Corp. | 3.14% | 3.71% | 2.90% | 2.67% | 0.00% | 0.00% | 5.29% | 4.63% | 8.03% | 4.17% | 3.84% | 3.88% |
PBYI Puma Biotechnology, 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
ESP vs. PBYI - Financials Comparison
This section allows you to compare key financial metrics between Espey Mfg. & Electronics Corp. and Puma Biotechnology, 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
ESP vs. PBYI - Profitability Comparison
ESP - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, Espey Mfg. & Electronics Corp. reported a gross profit of 4.23M and revenue of 11.42M. Therefore, the gross margin over that period was 37.0%.
PBYI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, Puma Biotechnology, Inc. reported a gross profit of 34.40M and revenue of 44.80M. Therefore, the gross margin over that period was 76.8%.
ESP - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Espey Mfg. & Electronics Corp. reported an operating income of 2.98M and revenue of 11.42M, resulting in an operating margin of 26.1%.
PBYI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Puma Biotechnology, Inc. reported an operating income of -3.83M and revenue of 44.80M, resulting in an operating margin of -8.5%.
ESP - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, Espey Mfg. & Electronics Corp. reported a net income of 2.86M and revenue of 11.42M, resulting in a net margin of 25.1%.
PBYI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, Puma Biotechnology, Inc. reported a net income of -3.80M and revenue of 44.80M, resulting in a net margin of -8.5%.
Frequently Asked Questions
ESP and PBYI 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.
ESP has higher volatility (17.49%) compared to PBYI (12.48%). In terms of maximum drawdown, ESP dropped -54.43% vs PBYI's -99.40%.
PBYI currently has the higher Sharpe Ratio (2.00 vs 0.33), 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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