WEC vs. AFL

Last updated Jun 9, 2026

WEC (WEC Energy Group, Inc.) and AFL (Aflac Incorporated) are both stocks. WEC operates in Utilities - Regulated Electric (Utilities), while AFL operates in Insurance - Life (Financial Services). Over the past 10 years, WEC returned 9.41%/yr vs 15.48%/yr for AFL. At a 0.24 correlation, their price movements are largely independent.

Performance

WEC vs. AFL - Performance Comparison

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

Returns By Period

In the year-to-date period, WEC achieves a 7.29% return, which is significantly higher than AFL's 5.61% return. Over the past 10 years, WEC has underperformed AFL with an annualized return of 9.41%, while AFL has yielded a comparatively higher 15.48% annualized return.

WEC

• 1D: -1.51%
• 1M: 0.49%
• YTD: 7.29%
• 6M: 8.01%
• 1Y: 8.89%
• 3Y*: 11.27%
• 5Y*: 7.23%
• 10Y*: 9.41%

AFL

• 1D: -2.54%
• 1M: 2.42%
• YTD: 5.61%
• 6M: 7.77%
• 1Y: 13.52%
• 3Y*: 21.24%
• 5Y*: 17.94%
• 10Y*: 15.48%

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

WEC vs. AFL - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WEC WEC Energy Group, Inc.	7.29%	15.96%	16.11%	-7.00%	-0.45%	8.66%	2.49%	37.05%	7.87%	17.11%
AFL Aflac Incorporated	5.61%	8.94%	28.08%	17.36%	26.41%	34.55%	-13.60%	18.55%	6.20%	29.02%

Correlation

The correlation between WEC and AFL is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.32
Correlation (3Y) Calculated over the trailing 3-year period	0.38
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (10Y) Calculated over the trailing 10-year period	0.26
Correlation (All Time) Calculated using the full available price history since Oct 29, 1984	0.24

The correlation between WEC and AFL shifts across timeframes, from 0.24 (all time) to 0.38 (3 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap WEC : $36.52B AFL : $59.32B
EPS WEC : $5.03 AFL : $8.76
PE Ratio WEC : 22.11 AFL : 13.16
PEG Ratio WEC : 4.94 AFL : 3.41
PS Ratio WEC : 3.59 AFL : 3.35
PB Ratio WEC : 2.58 AFL : 2.64
Total Revenue (TTM) WEC : $10.08B AFL : $18.22B
Gross Profit (TTM) WEC : $5.62B AFL : $8.70B
EBITDA (TTM) WEC : $4.04B AFL : $6.67B

Return for Risk

WEC vs. AFL — Risk / Return Rank

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

WEC

WEC Risk / Return Rank: 57
WEC Sharpe Ratio Rank: 62
WEC Sortino Ratio Rank: 53
WEC Omega Ratio Rank: 51
WEC Calmar Ratio Rank: 59
WEC Martin Ratio Rank: 61

AFL

AFL Risk / Return Rank: 65
AFL Sharpe Ratio Rank: 68
AFL Sortino Ratio Rank: 61
AFL Omega Ratio Rank: 58
AFL Calmar Ratio Rank: 70
AFL Martin Ratio Rank: 71

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.

WEC vs. AFL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WEC Energy Group, Inc. (WEC) 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.

	WEC	AFL	Difference
Sharpe ratio: Return per unit of total volatility	0.59	0.80	-0.21
Sortino ratio: Return per unit of downside risk	0.93	1.23	-0.30
Omega ratio: Gain probability vs. loss probability	1.11	1.14	-0.04
Calmar ratio: Return relative to maximum drawdown	0.80	1.49	-0.69
Martin ratio: Return relative to average drawdown	1.98	3.70	-1.73
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WEC vs. AFL - Sharpe Ratio Comparison

The current WEC Sharpe Ratio is 0.59, which is comparable to the AFL Sharpe Ratio of 0.80. The chart below compares the historical Sharpe Ratios of WEC and AFL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	WEC	AFL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.59	0.80	-0.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.38	0.86	-0.48
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.44	0.60	-0.17
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.48	+0.12

Drawdowns

WEC vs. AFL - Drawdown Comparison

The maximum WEC drawdown since its inception was -45.06%, smaller than the maximum AFL drawdown of -82.71%. Use the drawdown chart below to compare losses from any high point for WEC and AFL.

Drawdown Indicators

	WEC	AFL	Difference
Max Drawdown Largest peak-to-trough decline	-45.06%	-82.71%	+37.65%
Max Drawdown (1Y) Largest decline over 1 year	-11.22%	-9.11%	-2.11%
Max Drawdown (3Y) Largest decline over 3 years	-16.01%	-13.56%	-2.45%
Max Drawdown (5Y) Largest decline over 5 years	-26.02%	-19.86%	-6.16%
Max Drawdown (10Y) Largest decline over 10 years	-32.31%	-54.89%	+22.58%
Current Drawdown Current decline from peak	-5.54%	-2.54%	-3.00%
Average Drawdown Average peak-to-trough decline	-8.32%	-11.66%	+3.34%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.51%	3.67%	+0.84%

Volatility

WEC vs. AFL - Volatility Comparison

WEC Energy Group, Inc. (WEC) and Aflac Incorporated (AFL) have volatilities of 5.55% and 5.82%, 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.

Volatility by Period

	WEC	AFL	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.55%	5.82%	-0.27%
Volatility (6M) Calculated over the trailing 6-month period	11.19%	12.24%	-1.05%
Volatility (1Y) Calculated over the trailing 1-year period	15.14%	17.08%	-1.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.02%	20.94%	-1.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.60%	25.77%	-4.17%

Dividends

WEC vs. AFL - Dividend Comparison

WEC's dividend yield for the trailing twelve months is around 3.32%, more than AFL's 2.07% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AFL Aflac Incorporated	2.07%	2.10%	1.93%	2.04%	2.22%	2.26%	2.52%	2.04%	2.28%	1.98%	2.39%	2.64%
WEC WEC Energy Group, Inc.	3.32%	3.39%	3.55%	3.71%	3.10%	2.79%	2.75%	2.56%	3.19%	3.13%	3.38%	3.81%

Financials

WEC vs. AFL - Profitability Comparison

The chart below illustrates the profitability comparison between WEC Energy Group, Inc. and Aflac Incorporated over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

WEC - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, WEC Energy Group, Inc. reported a gross profit of 2.04B and revenue of 3.43B. Therefore, the gross margin over that period was 59.5%.

AFL - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported a gross profit of 2.48B and revenue of 4.32B. Therefore, the gross margin over that period was 57.5%.

WEC - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, WEC Energy Group, Inc. reported an operating income of 980.00M and revenue of 3.43B, resulting in an operating margin of 28.5%.

AFL - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported an operating income of 1.23B and revenue of 4.32B, resulting in an operating margin of 28.4%.

WEC - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, WEC Energy Group, Inc. reported a net income of 804.70M and revenue of 3.43B, resulting in a net margin of 23.4%.

AFL - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Aflac Incorporated reported a net income of 1.02B and revenue of 4.32B, resulting in a net margin of 23.6%.

Frequently Asked Questions

Can I hold both WEC and AFL in my portfolio?

WEC and AFL have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WEC or AFL?

AFL has higher volatility (5.82%) compared to WEC (5.55%). In terms of maximum drawdown, WEC dropped -45.06% vs AFL's -82.71%.

Which has better risk-adjusted returns?

AFL currently has the higher Sharpe Ratio (0.80 vs 0.59), 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.