CPK vs. AFL

Last updated Apr 2, 2026

Compare and contrast key facts about Chesapeake Utilities Corporation (CPK) and Aflac Incorporated (AFL).

Performance

CPK vs. AFL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Chesapeake Utilities Corporation (CPK) and Aflac Incorporated (AFL). The values are adjusted to include any dividend payments, if applicable.

CPK vs. AFL - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CPK Chesapeake Utilities Corporation	2.90%	5.07%	17.44%	-8.83%	-17.61%	36.78%	15.15%	19.88%	5.37%	19.34%
AFL Aflac Incorporated	-0.04%	8.94%	28.08%	17.36%	26.41%	34.55%	-13.60%	18.55%	6.20%	29.02%

Fundamentals

Market Cap CPK : $3.00B AFL : $58.33B
EPS CPK : $5.97 AFL : $6.83
PE Ratio CPK : 21.40 AFL : 16.06
PEG Ratio CPK : 3.39 AFL : 4.16
PS Ratio CPK : 2.44 AFL : 3.37
PB Ratio CPK : 1.88 AFL : 1.98
Total Revenue (TTM) CPK : $1.23B AFL : $17.36B
Gross Profit (TTM) CPK : $397.40M AFL : $6.71B
EBITDA (TTM) CPK : $357.20M AFL : $5.53B

Returns By Period

In the year-to-date period, CPK achieves a 2.90% return, which is significantly higher than AFL's -0.04% return. Over the past 10 years, CPK has underperformed AFL with an annualized return of 9.48%, while AFL has yielded a comparatively higher 15.75% annualized return.

CPK

• 1D: 1.06%
• 1M: -6.43%
• YTD: 2.90%
• 6M: -4.19%
• 1Y: 0.75%
• 3Y*: 2.10%
• 5Y*: 3.96%
• 10Y*: 9.48%

AFL

• 1D: -0.06%
• 1M: -3.27%
• YTD: -0.04%
• 6M: 0.04%
• 1Y: -0.38%
• 3Y*: 21.97%
• 5Y*: 19.05%
• 10Y*: 15.75%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

CPK vs. AFL — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CPK

CPK Risk / Return Rank: 38
CPK Sharpe Ratio Rank: 41
CPK Sortino Ratio Rank: 33
CPK Omega Ratio Rank: 32
CPK Calmar Ratio Rank: 43
CPK Martin Ratio Rank: 43

AFL

AFL Risk / Return Rank: 37
AFL Sharpe Ratio Rank: 39
AFL Sortino Ratio Rank: 32
AFL Omega Ratio Rank: 31
AFL Calmar Ratio Rank: 42
AFL Martin Ratio Rank: 43

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CPK vs. AFL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Chesapeake Utilities Corporation (CPK) and Aflac Incorporated (AFL). 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.

	CPK	AFL	Difference
Sharpe ratio Return per unit of total volatility	0.04	-0.02	+0.06
Sortino ratio Return per unit of downside risk	0.19	0.11	+0.08
Omega ratio Gain probability vs. loss probability	1.02	1.02	+0.01
Calmar ratio Return relative to maximum drawdown	0.11	0.06	+0.05
Martin ratio Return relative to average drawdown	0.22	0.13	+0.09
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CPK vs. AFL - Sharpe Ratio Comparison

The current CPK Sharpe Ratio is 0.04, which is higher than the AFL Sharpe Ratio of -0.02. The chart below compares the historical Sharpe Ratios of CPK and AFL, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CPK	AFL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.04	-0.02	+0.06
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.17	0.92	-0.74
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.36	0.61	-0.26
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.48	-0.14

Correlation

The correlation between CPK and AFL is 0.22, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

CPK vs. AFL - Dividend Comparison

CPK's dividend yield for the trailing twelve months is around 2.15%, which matches AFL's 2.14% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPK Chesapeake Utilities Corporation	2.15%	2.16%	2.07%	2.18%	1.76%	1.29%	1.59%	1.65%	1.77%	1.63%	1.80%	2.00%
AFL Aflac Incorporated	2.14%	2.10%	1.93%	2.04%	2.22%	2.26%	2.52%	2.04%	2.28%	1.98%	2.39%	2.64%

Drawdowns

CPK vs. AFL - Drawdown Comparison

The maximum CPK drawdown since its inception was -44.54%, smaller than the maximum AFL drawdown of -82.71%. Use the drawdown chart below to compare losses from any high point for CPK and AFL.

Drawdown Indicators

	CPK	AFL	Difference
Max Drawdown Largest peak-to-trough decline	-44.54%	-82.71%	+38.17%
Max Drawdown (1Y) Largest decline over 1 year	-14.39%	-12.15%	-2.24%
Max Drawdown (5Y) Largest decline over 5 years	-38.67%	-19.86%	-18.81%
Max Drawdown (10Y) Largest decline over 10 years	-38.67%	-54.89%	+16.22%
Current Drawdown Current decline from peak	-7.18%	-6.17%	-1.01%
Average Drawdown Average peak-to-trough decline	-8.82%	-11.70%	+2.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.43%	5.68%	+1.75%

Volatility

CPK vs. AFL - Volatility Comparison

Chesapeake Utilities Corporation (CPK) has a higher volatility of 7.01% compared to Aflac Incorporated (AFL) at 4.26%. This indicates that CPK's price experiences larger fluctuations and is considered to be riskier than AFL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPK	AFL	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.01%	4.26%	+2.75%
Volatility (6M) Calculated over the trailing 6-month period	13.93%	11.79%	+2.14%
Volatility (1Y) Calculated over the trailing 1-year period	20.60%	20.41%	+0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.82%	20.86%	+1.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.71%	25.70%	+1.01%

Financials

CPK vs. AFL - Profitability Comparison

The chart below illustrates the profitability comparison between Chesapeake Utilities Corporation and Aflac Incorporated over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CPK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Chesapeake Utilities Corporation reported a gross profit of 119.00M and revenue of 557.30M. Therefore, the gross margin over that period was 21.4%.

AFL - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Aflac Incorporated reported a gross profit of 2.93B and revenue of 4.90B. Therefore, the gross margin over that period was 59.9%.

CPK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Chesapeake Utilities Corporation reported an operating income of 73.80M and revenue of 557.30M, resulting in an operating margin of 13.2%.

AFL - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Aflac Incorporated reported an operating income of 1.60B and revenue of 4.90B, resulting in an operating margin of 32.7%.

CPK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Chesapeake Utilities Corporation reported a net income of 46.10M and revenue of 557.30M, resulting in a net margin of 8.3%.

AFL - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Aflac Incorporated reported a net income of 1.38B and revenue of 4.90B, resulting in a net margin of 28.2%.