CPK vs. AEP
CPK (Chesapeake Utilities Corporation) and AEP (American Electric Power Company, Inc.) are both stocks. Both are in the Utilities sector — CPK in Utilities - Regulated Gas, AEP in Utilities - Regulated Electric. Over the past 10 years, CPK returned 8.83%/yr vs 10.94%/yr for AEP. At a 0.27 correlation, their price movements are largely independent.
Performance
CPK vs. AEP - Performance Comparison
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Returns By Period
In the year-to-date period, CPK achieves a -1.48% return, which is significantly lower than AEP's 17.75% return. Over the past 10 years, CPK has underperformed AEP with an annualized return of 8.83%, while AEP has yielded a comparatively higher 10.94% annualized return.
CPK
- 1D
- 2.16%
- 1M
- -3.36%
- YTD
- -1.48%
- 6M
- -1.81%
- 1Y
- -0.09%
- 3Y*
- 2.57%
- 5Y*
- 2.32%
- 10Y*
- 8.83%
AEP
- 1D
- 2.64%
- 1M
- 1.63%
- YTD
- 17.75%
- 6M
- 17.91%
- 1Y
- 33.55%
- 3Y*
- 21.41%
- 5Y*
- 14.10%
- 10Y*
- 10.94%
CPK vs. AEP - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CPK Chesapeake Utilities Corporation | -1.48% | 5.07% | 17.44% | -8.83% | -17.61% | 36.78% | 15.15% | 19.88% | 5.37% | 19.34% |
AEP American Electric Power Company, Inc. | 17.75% | 29.38% | 18.18% | -10.98% | 10.38% | 10.68% | -9.01% | 30.52% | 5.38% | 20.95% |
Correlation
The correlation between CPK and AEP is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.47 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.50 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.55 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.54 |
Correlation (All Time) Calculated using the full available price history since Mar 26, 1990 | 0.27 |
Over the past year, CPK and AEP have become more correlated (0.47) than their long-term average of 0.27, meaning their price movements have been converging.
Fundamentals
CPK:
$2.92B
AEP:
$73.16B
CPK:
$3.21
AEP:
$6.82
CPK:
37.88
AEP:
19.60
CPK:
6.01
AEP:
2.20
CPK:
4.85
AEP:
3.23
CPK:
1.77K
AEP:
2.30
CPK:
$586.05M
AEP:
$22.16B
CPK:
$313.50M
AEP:
$8.95B
CPK:
$224.92M
AEP:
$8.70B
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Return for Risk
CPK vs. AEP — Risk / Return Rank
CPK
AEP
CPK vs. AEP - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Chesapeake Utilities Corporation (CPK) and American Electric Power Company, Inc. (AEP). 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.
| CPK | AEP | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.83 | ||
| Sortino ratioReturn per unit of downside risk | -2.55 | ||
| Omega ratioGain probability vs. loss probability | 1.01 | 1.33 | -0.31 |
| Calmar ratioReturn relative to maximum drawdown | -0.01 | 3.71 | -3.72 |
| Martin ratioReturn relative to average drawdown | -0.01 | 9.08 | -9.09 |
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Drawdowns
CPK vs. AEP - Drawdown Comparison
The maximum CPK drawdown since its inception was -44.54%, smaller than the maximum AEP drawdown of -62.75%. Use the drawdown chart below to compare losses from any high point for CPK and AEP.
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Drawdown Indicators
| CPK | AEP | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -44.54% | -62.75% | +18.21% |
Max Drawdown (1Y)Largest decline over 1 year | -13.01% | -9.09% | -3.92% |
Max Drawdown (3Y)Largest decline over 3 years | -29.13% | -18.04% | -11.09% |
Max Drawdown (5Y)Largest decline over 5 years | -38.67% | -29.56% | -9.11% |
Max Drawdown (10Y)Largest decline over 10 years | -38.67% | -32.91% | -5.76% |
Current DrawdownCurrent decline from peak | -11.13% | -1.78% | -9.35% |
Average DrawdownAverage peak-to-trough decline | -8.82% | -17.54% | +8.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.40% | 3.71% | +2.69% |
Volatility
CPK vs. AEP - Volatility Comparison
Chesapeake Utilities Corporation (CPK) and American Electric Power Company, Inc. (AEP) have volatilities of 6.21% and 6.34%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CPK | AEP | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.21% | 6.34% | -0.13% |
Volatility (6M)Calculated over the trailing 6-month period | 14.14% | 13.62% | +0.52% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.95% | 18.56% | +0.39% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.78% | 20.03% | +2.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 26.53% | 21.00% | +5.53% |
Dividends
CPK vs. AEP - Dividend Comparison
CPK's dividend yield for the trailing twelve months is around 2.30%, less than AEP's 2.83% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AEP American Electric Power Company, Inc. | 2.83% | 3.24% | 3.87% | 4.15% | 3.34% | 3.37% | 3.41% | 2.87% | 3.39% | 3.25% | 3.61% | 3.69% |
CPK Chesapeake Utilities Corporation | 2.30% | 2.16% | 2.07% | 2.18% | 1.76% | 1.29% | 1.59% | 1.65% | 1.77% | 1.63% | 1.80% | 2.00% |
Financials
CPK vs. AEP - Financials Comparison
This section allows you to compare key financial metrics between Chesapeake Utilities Corporation and American Electric Power Company, 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
CPK vs. AEP - Profitability Comparison
CPK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported a gross profit of 0.00 and revenue of 353.10K. Therefore, the gross margin over that period was 0.0%.
AEP - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, American Electric Power Company, Inc. reported a gross profit of 3.90B and revenue of 6.02B. Therefore, the gross margin over that period was 64.8%.
CPK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported an operating income of 99.40K and revenue of 353.10K, resulting in an operating margin of 28.2%.
AEP - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, American Electric Power Company, Inc. reported an operating income of 1.36B and revenue of 6.02B, resulting in an operating margin of 22.6%.
CPK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported a net income of 59.30K and revenue of 353.10K, resulting in a net margin of 16.8%.
AEP - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, American Electric Power Company, Inc. reported a net income of 874.00M and revenue of 6.02B, resulting in a net margin of 14.5%.
Frequently Asked Questions
CPK and AEP have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AEP has higher volatility (6.34%) compared to CPK (6.21%). In terms of maximum drawdown, CPK dropped -44.54% vs AEP's -62.75%.
AEP currently has the higher Sharpe Ratio (1.82 vs -0.00), 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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