PBYI vs. ESP
PBYI (Puma Biotechnology, Inc.) and ESP (Espey Mfg. & Electronics Corp.) are both stocks. PBYI operates in Biotechnology (Healthcare), while ESP operates in Electrical Equipment & Parts (Industrials). Over the past 10 years, PBYI returned -15.39%/yr vs 11.92%/yr for ESP. At a 0.08 correlation, their price movements are largely independent.
Performance
PBYI vs. ESP - Performance Comparison
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Returns By Period
In the year-to-date period, PBYI achieves a 14.45% return, which is significantly lower than ESP's 18.82% return. Over the past 10 years, PBYI has underperformed ESP with an annualized return of -15.39%, while ESP has yielded a comparatively higher 11.92% annualized return.
PBYI
- 1D
- -2.44%
- 1M
- -9.56%
- YTD
- 14.45%
- 6M
- 31.21%
- 1Y
- 105.43%
- 3Y*
- 24.25%
- 5Y*
- -9.60%
- 10Y*
- -15.39%
ESP
- 1D
- -3.63%
- 1M
- -18.94%
- YTD
- 18.82%
- 6M
- 40.45%
- 1Y
- 52.54%
- 3Y*
- 54.51%
- 5Y*
- 33.03%
- 10Y*
- 11.92%
PBYI vs. ESP - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PBYI Puma Biotechnology, Inc. | 14.45% | 95.08% | -29.56% | 2.36% | 39.14% | -70.37% | 17.26% | -57.00% | -79.41% | 221.99% |
ESP Espey Mfg. & Electronics Corp. | 18.82% | 63.34% | 66.83% | 35.47% | -0.07% | -24.87% | -7.86% | -9.61% | 11.35% | -3.99% |
Correlation
The correlation between PBYI and ESP is 0.06, 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 | 0.06 |
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 | 0.10 |
Correlation (All Time) Calculated using the full available price history since Apr 25, 2012 | 0.08 |
Fundamentals
PBYI:
$346.26M
ESP:
$160.89M
PBYI:
$0.48
ESP:
$3.79
PBYI:
14.25
ESP:
14.71
PBYI:
0.02
ESP:
0.21
PBYI:
1.52
ESP:
3.75
PBYI:
2.70
ESP:
2.85
PBYI:
$227.21M
ESP:
$42.25M
PBYI:
$169.14M
ESP:
$15.43M
PBYI:
$46.97M
ESP:
$11.61M
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Return for Risk
PBYI vs. ESP — Risk / Return Rank
PBYI
ESP
PBYI vs. ESP - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Puma Biotechnology, Inc. (PBYI) and Espey Mfg. & Electronics Corp. (ESP). 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.
| PBYI | ESP | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.50 | ||
| Sortino ratioReturn per unit of downside risk | +0.66 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 1.20 | +0.14 |
| Calmar ratioReturn relative to maximum drawdown | 4.11 | 1.81 | +2.30 |
| Martin ratioReturn relative to average drawdown | 9.31 | 3.71 | +5.60 |
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
| PBYI | ESP | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.52 | 1.02 | +0.50 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.13 | 0.78 | -0.90 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.19 | 0.31 | -0.51 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.04 | 0.35 | -0.40 |
Drawdowns
PBYI vs. ESP - Drawdown Comparison
The maximum PBYI drawdown since its inception was -99.40%, which is greater than ESP's maximum drawdown of -54.43%. Use the drawdown chart below to compare losses from any high point for PBYI and ESP.
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Drawdown Indicators
| PBYI | ESP | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.40% | -54.43% | -44.97% |
Max Drawdown (1Y)Largest decline over 1 year | -25.78% | -29.09% | +3.31% |
Max Drawdown (3Y)Largest decline over 3 years | -69.59% | -29.09% | -40.50% |
Max Drawdown (5Y)Largest decline over 5 years | -85.86% | -33.59% | -52.27% |
Max Drawdown (10Y)Largest decline over 10 years | -98.76% | -54.43% | -44.33% |
Current DrawdownCurrent decline from peak | -97.52% | -22.81% | -74.71% |
Average DrawdownAverage peak-to-trough decline | -74.42% | -15.01% | -59.41% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 11.36% | 14.22% | -2.86% |
Volatility
PBYI vs. ESP - Volatility Comparison
The current volatility for Puma Biotechnology, Inc. (PBYI) is 9.68%, while Espey Mfg. & Electronics Corp. (ESP) has a volatility of 15.12%. This indicates that PBYI experiences smaller price fluctuations and is considered to be less risky than ESP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PBYI | ESP | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.68% | 15.12% | -5.44% |
Volatility (6M)Calculated over the trailing 6-month period | 41.71% | 38.18% | +3.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 69.92% | 52.04% | +17.88% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 75.83% | 42.85% | +32.98% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 80.65% | 38.01% | +42.64% |
Dividends
PBYI vs. ESP - Dividend Comparison
PBYI has not paid dividends to shareholders, while ESP's dividend yield for the trailing twelve months is around 3.14%.
| 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
PBYI vs. ESP - Financials Comparison
This section allows you to compare key financial metrics between Puma Biotechnology, Inc. and Espey Mfg. & Electronics Corp.. 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
PBYI vs. ESP - Profitability Comparison
PBYI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 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 - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 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 - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 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 - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 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 - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Puma Biotechnology, Inc. reported a net income of -3.80M and revenue of 44.80M, resulting in a net margin of -8.5%.
ESP - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 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%.
Frequently Asked Questions
PBYI and ESP have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ESP has higher volatility (15.12%) compared to PBYI (9.68%). In terms of maximum drawdown, PBYI dropped -99.40% vs ESP's -54.43%.
PBYI currently has the higher Sharpe Ratio (1.52 vs 1.02), 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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